diff --git a/.fern/metadata.json b/.fern/metadata.json
index 1b6b24b5..97957d82 100644
--- a/.fern/metadata.json
+++ b/.fern/metadata.json
@@ -1,7 +1,7 @@
 {
-  "cliVersion": "3.38.0",
+  "cliVersion": "3.98.5",
   "generatorName": "fernapi/fern-java-sdk",
-  "generatorVersion": "3.27.6",
+  "generatorVersion": "3.42.8",
   "generatorConfig": {
     "base-api-exception-class-name": "SquareApiException",
     "base-exception-class-name": "SquareException",
@@ -13,5 +13,5 @@
     "enable-forward-compatible-enums": true,
     "publish-to": "central"
   },
-  "sdkVersion": "46.0.0.20260122"
+  "sdkVersion": "46.1.0.20260122"
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index 2dd51f47..51154439 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Add the dependency in your `pom.xml` file:
 <dependency>
   <groupId>com.squareup</groupId>
   <artifactId>square</artifactId>
-  <version>46.0.0.20260122</version>
+  <version>46.1.0.20260122</version>
 </dependency>
 ```
 
@@ -361,8 +361,8 @@ Gradle:
 
 ```groovy
 dependencies {
-    implementation 'com.squareup:square:46.0.0.20260122'
-    implementation 'com.squareup:square-legacy:46.0.0.20260122'
+    implementation 'com.squareup:square:46.1.0.20260122'
+    implementation 'com.squareup:square-legacy:46.1.0.20260122'
 }
 ```
 
@@ -372,12 +372,12 @@ Maven:
 <dependency>
     <groupId>com.squareup</groupId>
     <artifactId>square</artifactId>
-    <version>46.0.0.20260122</version>
+    <version>46.1.0.20260122</version>
 </dependency>
 <dependency>
     <groupId>com.squareup</groupId>
     <artifactId>square-legacy</artifactId>
-    <version>46.0.0.20260122</version>
+    <version>46.1.0.20260122</version>
 </dependency>
 ```
 
@@ -499,4 +499,4 @@ otherwise they would be overwritten upon the next generated release. Feel free t
 a proof of concept, but know that we will not be able to merge it as-is. We suggest opening
 an issue first to discuss with us!
 
-On the other hand, contributions to the README are always very welcome!
\ No newline at end of file
+On the other hand, contributions to the README are always very welcome!
diff --git a/build.gradle b/build.gradle
index 022d7ecd..7fb73bdf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,9 +15,9 @@ repositories {
 
 dependencies {
     api 'com.squareup.okhttp3:okhttp:5.2.1'
-    api 'com.fasterxml.jackson.core:jackson-databind:2.18.2'
-    api 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.18.2'
-    api 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.18.2'
+    api 'com.fasterxml.jackson.core:jackson-databind:2.18.6'
+    api 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.18.6'
+    api 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.18.6'
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
     testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
     testImplementation 'org.junit.jupiter:junit-jupiter-params:5.8.2'
@@ -47,7 +47,7 @@ java {
 
 group = 'com.squareup'
 
-version = '46.0.0.20260122'
+version = '46.1.0.20260122'
 
 jar {
     dependsOn(":generatePomFileForMavenPublication")
@@ -78,7 +78,7 @@ publishing {
         maven(MavenPublication) {
             groupId = 'com.squareup'
             artifactId = 'square'
-            version = '46.0.0.20260122'
+            version = '46.1.0.20260122'
             from components.java
             pom {
                 name = 'square'
diff --git a/reference.md b/reference.md
index 47ec4ee3..9e8d4775 100644
--- a/reference.md
+++ b/reference.md
@@ -412,7 +412,7 @@ client.oAuth().authorize();
 </details>
 
 ## V1Transactions
-<details><summary><code>client.v1Transactions.v1ListOrders(locationId) -> List&lt;V1Order&gt;</code></summary>
+<details><summary><code>client.v1Transactions.v1ListOrders(locationId) -> List&amp;lt;V1Order&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -755,7 +755,7 @@ client.applePay().registerDomain(
 </details>
 
 ## BankAccounts
-<details><summary><code>client.bankAccounts.list() -> SyncPagingIterable&lt;BankAccount&gt;</code></summary>
+<details><summary><code>client.bankAccounts.list() -> SyncPagingIterable&amp;lt;BankAccount&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -1121,7 +1121,7 @@ client.bankAccounts().disableBankAccount(
 </details>
 
 ## Bookings
-<details><summary><code>client.bookings.list() -> SyncPagingIterable&lt;Booking&gt;</code></summary>
+<details><summary><code>client.bookings.list() -> SyncPagingIterable&amp;lt;Booking&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -1850,7 +1850,7 @@ client.bookings().cancel(
 </details>
 
 ## Cards
-<details><summary><code>client.cards.list() -> SyncPagingIterable&lt;Card&gt;</code></summary>
+<details><summary><code>client.cards.list() -> SyncPagingIterable&amp;lt;Card&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -2584,7 +2584,7 @@ client.catalog().info();
 </dl>
 </details>
 
-<details><summary><code>client.catalog.list() -> SyncPagingIterable&lt;CatalogObject&gt;</code></summary>
+<details><summary><code>client.catalog.list() -> SyncPagingIterable&amp;lt;CatalogObject&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -3275,7 +3275,7 @@ At least one of `taxes_to_enable` or `taxes_to_disable` must be specified.
 </details>
 
 ## Channels
-<details><summary><code>client.channels.list() -> SyncPagingIterable&lt;Channel&gt;</code></summary>
+<details><summary><code>client.channels.list() -> SyncPagingIterable&amp;lt;Channel&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -3494,7 +3494,7 @@ client.channels().get(
 </details>
 
 ## Customers
-<details><summary><code>client.customers.list() -> SyncPagingIterable&lt;Customer&gt;</code></summary>
+<details><summary><code>client.customers.list() -> SyncPagingIterable&amp;lt;Customer&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -4666,7 +4666,7 @@ As a best practice, you should include this parameter to enable [optimistic conc
 </details>
 
 ## Devices
-<details><summary><code>client.devices.list() -> SyncPagingIterable&lt;Device&gt;</code></summary>
+<details><summary><code>client.devices.list() -> SyncPagingIterable&amp;lt;Device&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -4821,7 +4821,7 @@ client.devices().get(
 </details>
 
 ## Disputes
-<details><summary><code>client.disputes.list() -> SyncPagingIterable&lt;Dispute&gt;</code></summary>
+<details><summary><code>client.disputes.list() -> SyncPagingIterable&amp;lt;Dispute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -5242,7 +5242,7 @@ client.disputes().submitEvidence(
 </details>
 
 ## Employees
-<details><summary><code>client.employees.list() -> SyncPagingIterable&lt;Employee&gt;</code></summary>
+<details><summary><code>client.employees.list() -> SyncPagingIterable&amp;lt;Employee&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -5612,7 +5612,7 @@ client.events().listEventTypes(
 </details>
 
 ## GiftCards
-<details><summary><code>client.giftCards.list() -> SyncPagingIterable&lt;GiftCard&gt;</code></summary>
+<details><summary><code>client.giftCards.list() -> SyncPagingIterable&amp;lt;GiftCard&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -6593,7 +6593,7 @@ client.inventory().batchCreateChanges(
 </dl>
 </details>
 
-<details><summary><code>client.inventory.batchGetChanges(request) -> SyncPagingIterable&lt;InventoryChange&gt;</code></summary>
+<details><summary><code>client.inventory.batchGetChanges(request) -> SyncPagingIterable&amp;lt;InventoryChange&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -6680,7 +6680,7 @@ client.inventory().batchGetChanges(
 </dl>
 </details>
 
-<details><summary><code>client.inventory.batchGetCounts(request) -> SyncPagingIterable&lt;InventoryCount&gt;</code></summary>
+<details><summary><code>client.inventory.batchGetCounts(request) -> SyncPagingIterable&amp;lt;InventoryCount&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -6945,7 +6945,7 @@ client.inventory().getTransfer(
 </dl>
 </details>
 
-<details><summary><code>client.inventory.get(catalogObjectId) -> SyncPagingIterable&lt;InventoryCount&gt;</code></summary>
+<details><summary><code>client.inventory.get(catalogObjectId) -> SyncPagingIterable&amp;lt;InventoryCount&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -7033,7 +7033,7 @@ See the [Pagination](https://developer.squareup.com/docs/working-with-apis/pagin
 </dl>
 </details>
 
-<details><summary><code>client.inventory.changes(catalogObjectId) -> SyncPagingIterable&lt;InventoryChange&gt;</code></summary>
+<details><summary><code>client.inventory.changes(catalogObjectId) -> SyncPagingIterable&amp;lt;InventoryChange&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -7131,7 +7131,7 @@ See the [Pagination](https://developer.squareup.com/docs/working-with-apis/pagin
 </details>
 
 ## Invoices
-<details><summary><code>client.invoices.list() -> SyncPagingIterable&lt;Invoice&gt;</code></summary>
+<details><summary><code>client.invoices.list() -> SyncPagingIterable&amp;lt;Invoice&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -9829,7 +9829,7 @@ For more information, see [Pagination](https://developer.squareup.com/docs/build
 </details>
 
 ## Merchants
-<details><summary><code>client.merchants.list() -> SyncPagingIterable&lt;Merchant&gt;</code></summary>
+<details><summary><code>client.merchants.list() -> SyncPagingIterable&amp;lt;Merchant&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -11131,7 +11131,7 @@ The payment total must match the order total.
 </details>
 
 ## Payments
-<details><summary><code>client.payments.list() -> SyncPagingIterable&lt;Payment&gt;</code></summary>
+<details><summary><code>client.payments.list() -> SyncPagingIterable&amp;lt;Payment&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -12146,7 +12146,7 @@ the update fails and a response with a VERSION_MISMATCH error is returned.
 </details>
 
 ## Payouts
-<details><summary><code>client.payouts.list() -> SyncPagingIterable&lt;Payout&gt;</code></summary>
+<details><summary><code>client.payouts.list() -> SyncPagingIterable&amp;lt;Payout&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -12341,7 +12341,7 @@ client.payouts().get(
 </dl>
 </details>
 
-<details><summary><code>client.payouts.listEntries(payoutId) -> SyncPagingIterable&lt;PayoutEntry&gt;</code></summary>
+<details><summary><code>client.payouts.listEntries(payoutId) -> SyncPagingIterable&amp;lt;PayoutEntry&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -12440,7 +12440,7 @@ Default: `100`
 </details>
 
 ## Refunds
-<details><summary><code>client.refunds.list() -> SyncPagingIterable&lt;PaymentRefund&gt;</code></summary>
+<details><summary><code>client.refunds.list() -> SyncPagingIterable&amp;lt;PaymentRefund&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -14005,7 +14005,7 @@ client.subscriptions().cancel(
 </dl>
 </details>
 
-<details><summary><code>client.subscriptions.listEvents(subscriptionId) -> SyncPagingIterable&lt;SubscriptionEvent&gt;</code></summary>
+<details><summary><code>client.subscriptions.listEvents(subscriptionId) -> SyncPagingIterable&amp;lt;SubscriptionEvent&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -15621,7 +15621,7 @@ any valid string but must be unique for every CreateTransferOrder request.
 </dl>
 </details>
 
-<details><summary><code>client.transferOrders.search(request) -> SyncPagingIterable&lt;TransferOrder&gt;</code></summary>
+<details><summary><code>client.transferOrders.search(request) -> SyncPagingIterable&amp;lt;TransferOrder&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -16856,7 +16856,7 @@ client.vendors().update(
 </details>
 
 ## Bookings CustomAttributeDefinitions
-<details><summary><code>client.bookings.customAttributeDefinitions.list() -> SyncPagingIterable&lt;CustomAttributeDefinition&gt;</code></summary>
+<details><summary><code>client.bookings.customAttributeDefinitions.list() -> SyncPagingIterable&amp;lt;CustomAttributeDefinition&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -17436,7 +17436,7 @@ information needed to create or update a custom attribute.
 </dl>
 </details>
 
-<details><summary><code>client.bookings.customAttributes.list(bookingId) -> SyncPagingIterable&lt;CustomAttribute&gt;</code></summary>
+<details><summary><code>client.bookings.customAttributes.list(bookingId) -> SyncPagingIterable&amp;lt;CustomAttribute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -17829,7 +17829,7 @@ definition owner, you must use the qualified key.
 </details>
 
 ## Bookings LocationProfiles
-<details><summary><code>client.bookings.locationProfiles.list() -> SyncPagingIterable&lt;LocationBookingProfile&gt;</code></summary>
+<details><summary><code>client.bookings.locationProfiles.list() -> SyncPagingIterable&amp;lt;LocationBookingProfile&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -17898,7 +17898,7 @@ client.bookings().locationProfiles().list(
 </details>
 
 ## Bookings TeamMemberProfiles
-<details><summary><code>client.bookings.teamMemberProfiles.list() -> SyncPagingIterable&lt;TeamMemberBookingProfile&gt;</code></summary>
+<details><summary><code>client.bookings.teamMemberProfiles.list() -> SyncPagingIterable&amp;lt;TeamMemberBookingProfile&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -18044,7 +18044,7 @@ client.bookings().teamMemberProfiles().get(
 </details>
 
 ## CashDrawers Shifts
-<details><summary><code>client.cashDrawers.shifts.list() -> SyncPagingIterable&lt;CashDrawerShiftSummary&gt;</code></summary>
+<details><summary><code>client.cashDrawers.shifts.list() -> SyncPagingIterable&amp;lt;CashDrawerShiftSummary&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -18224,7 +18224,7 @@ client.cashDrawers().shifts().get(
 </dl>
 </details>
 
-<details><summary><code>client.cashDrawers.shifts.listEvents(shiftId) -> SyncPagingIterable&lt;CashDrawerShiftEvent&gt;</code></summary>
+<details><summary><code>client.cashDrawers.shifts.listEvents(shiftId) -> SyncPagingIterable&amp;lt;CashDrawerShiftEvent&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -18710,7 +18710,7 @@ catalog item will delete its catalog item variations).
 </details>
 
 ## Checkout PaymentLinks
-<details><summary><code>client.checkout.paymentLinks.list() -> SyncPagingIterable&lt;PaymentLink&gt;</code></summary>
+<details><summary><code>client.checkout.paymentLinks.list() -> SyncPagingIterable&amp;lt;PaymentLink&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -19137,7 +19137,7 @@ client.checkout().paymentLinks().delete(
 </details>
 
 ## Customers CustomAttributeDefinitions
-<details><summary><code>client.customers.customAttributeDefinitions.list() -> SyncPagingIterable&lt;CustomAttributeDefinition&gt;</code></summary>
+<details><summary><code>client.customers.customAttributeDefinitions.list() -> SyncPagingIterable&amp;lt;CustomAttributeDefinition&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -19264,7 +19264,7 @@ client.customers().customAttributeDefinitions().create(
                 .key("favoritemovie")
                 .schema(
                     new HashMap<String, Object>() {{
-                        put("\\$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
+                        put("$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
                     }}
                 )
                 .name("Favorite Movie")
@@ -19704,7 +19704,7 @@ information needed to create or update a custom attribute.
 </details>
 
 ## Customers Groups
-<details><summary><code>client.customers.groups.list() -> SyncPagingIterable&lt;CustomerGroup&gt;</code></summary>
+<details><summary><code>client.customers.groups.list() -> SyncPagingIterable&amp;lt;CustomerGroup&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -20190,7 +20190,7 @@ client.customers().groups().remove(
 </details>
 
 ## Customers Segments
-<details><summary><code>client.customers.segments.list() -> SyncPagingIterable&lt;CustomerSegment&gt;</code></summary>
+<details><summary><code>client.customers.segments.list() -> SyncPagingIterable&amp;lt;CustomerSegment&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -20524,7 +20524,7 @@ client.customers().cards().delete(
 </details>
 
 ## Customers CustomAttributes
-<details><summary><code>client.customers.customAttributes.list(customerId) -> SyncPagingIterable&lt;CustomAttribute&gt;</code></summary>
+<details><summary><code>client.customers.customAttributes.list(customerId) -> SyncPagingIterable&amp;lt;CustomAttribute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -20926,7 +20926,7 @@ definition owner, you must use the qualified key.
 </details>
 
 ## Devices Codes
-<details><summary><code>client.devices.codes.list() -> SyncPagingIterable&lt;DeviceCode&gt;</code></summary>
+<details><summary><code>client.devices.codes.list() -> SyncPagingIterable&amp;lt;DeviceCode&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -21167,7 +21167,7 @@ client.devices().codes().get(
 </details>
 
 ## Disputes Evidence
-<details><summary><code>client.disputes.evidence.list(disputeId) -> SyncPagingIterable&lt;DisputeEvidence&gt;</code></summary>
+<details><summary><code>client.disputes.evidence.list(disputeId) -> SyncPagingIterable&amp;lt;DisputeEvidence&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -21379,7 +21379,7 @@ client.disputes().evidence().delete(
 </details>
 
 ## GiftCards Activities
-<details><summary><code>client.giftCards.activities.list() -> SyncPagingIterable&lt;GiftCardActivity&gt;</code></summary>
+<details><summary><code>client.giftCards.activities.list() -> SyncPagingIterable&amp;lt;GiftCardActivity&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -21620,7 +21620,7 @@ gift card, the `location_id` where the activity occurred, and the activity `type
 </details>
 
 ## Labor BreakTypes
-<details><summary><code>client.labor.breakTypes.list() -> SyncPagingIterable&lt;BreakType&gt;</code></summary>
+<details><summary><code>client.labor.breakTypes.list() -> SyncPagingIterable&amp;lt;BreakType&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -21990,7 +21990,7 @@ client.labor().breakTypes().delete(
 </details>
 
 ## Labor EmployeeWages
-<details><summary><code>client.labor.employeeWages.list() -> SyncPagingIterable&lt;EmployeeWage&gt;</code></summary>
+<details><summary><code>client.labor.employeeWages.list() -> SyncPagingIterable&amp;lt;EmployeeWage&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -22610,7 +22610,7 @@ client.labor().shifts().delete(
 </details>
 
 ## Labor TeamMemberWages
-<details><summary><code>client.labor.teamMemberWages.list() -> SyncPagingIterable&lt;TeamMemberWage&gt;</code></summary>
+<details><summary><code>client.labor.teamMemberWages.list() -> SyncPagingIterable&amp;lt;TeamMemberWage&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -22753,7 +22753,7 @@ client.labor().teamMemberWages().get(
 </details>
 
 ## Labor WorkweekConfigs
-<details><summary><code>client.labor.workweekConfigs.list() -> SyncPagingIterable&lt;WorkweekConfig&gt;</code></summary>
+<details><summary><code>client.labor.workweekConfigs.list() -> SyncPagingIterable&amp;lt;WorkweekConfig&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -22897,7 +22897,7 @@ client.labor().workweekConfigs().get(
 </details>
 
 ## Locations CustomAttributeDefinitions
-<details><summary><code>client.locations.customAttributeDefinitions.list() -> SyncPagingIterable&lt;CustomAttributeDefinition&gt;</code></summary>
+<details><summary><code>client.locations.customAttributeDefinitions.list() -> SyncPagingIterable&amp;lt;CustomAttributeDefinition&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -23027,7 +23027,7 @@ client.locations().customAttributeDefinitions().create(
                 .key("bestseller")
                 .schema(
                     new HashMap<String, Object>() {{
-                        put("\\$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
+                        put("$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
                     }}
                 )
                 .name("Bestseller")
@@ -23511,7 +23511,7 @@ information needed to create or update a custom attribute.
 </dl>
 </details>
 
-<details><summary><code>client.locations.customAttributes.list(locationId) -> SyncPagingIterable&lt;CustomAttribute&gt;</code></summary>
+<details><summary><code>client.locations.customAttributes.list(locationId) -> SyncPagingIterable&amp;lt;CustomAttribute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -25325,7 +25325,7 @@ Keys can be any valid string, but must be unique for every request.
 </details>
 
 ## Loyalty Programs Promotions
-<details><summary><code>client.loyalty.programs.promotions.list(programId) -> SyncPagingIterable&lt;LoyaltyPromotion&gt;</code></summary>
+<details><summary><code>client.loyalty.programs.promotions.list(programId) -> SyncPagingIterable&amp;lt;LoyaltyPromotion&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -25708,7 +25708,7 @@ promotion that has an `ACTIVE` or `SCHEDULED` status.
 </details>
 
 ## Merchants CustomAttributeDefinitions
-<details><summary><code>client.merchants.customAttributeDefinitions.list() -> SyncPagingIterable&lt;CustomAttributeDefinition&gt;</code></summary>
+<details><summary><code>client.merchants.customAttributeDefinitions.list() -> SyncPagingIterable&amp;lt;CustomAttributeDefinition&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -25838,7 +25838,7 @@ client.merchants().customAttributeDefinitions().create(
                 .key("alternative_seller_name")
                 .schema(
                     new HashMap<String, Object>() {{
-                        put("\\$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
+                        put("$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.String");
                     }}
                 )
                 .name("Alternative Merchant Name")
@@ -26306,7 +26306,7 @@ information needed to create or update a custom attribute.
 </dl>
 </details>
 
-<details><summary><code>client.merchants.customAttributes.list(merchantId) -> SyncPagingIterable&lt;CustomAttribute&gt;</code></summary>
+<details><summary><code>client.merchants.customAttributes.list(merchantId) -> SyncPagingIterable&amp;lt;CustomAttribute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -26705,7 +26705,7 @@ definition owner, you must use the qualified key.
 </details>
 
 ## Orders CustomAttributeDefinitions
-<details><summary><code>client.orders.customAttributeDefinitions.list() -> SyncPagingIterable&lt;CustomAttributeDefinition&gt;</code></summary>
+<details><summary><code>client.orders.customAttributeDefinitions.list() -> SyncPagingIterable&amp;lt;CustomAttributeDefinition&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -26836,7 +26836,7 @@ client.orders().customAttributeDefinitions().create(
                 .key("cover-count")
                 .schema(
                     new HashMap<String, Object>() {{
-                        put("\\$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.Number");
+                        put("$ref", "https://developer-production-s.squarecdn.com/schemas/v1/common.json#squareup.common.Number");
                     }}
                 )
                 .name("Cover count")
@@ -27307,7 +27307,7 @@ client.orders().customAttributes().batchUpsert(
 </dl>
 </details>
 
-<details><summary><code>client.orders.customAttributes.list(orderId) -> SyncPagingIterable&lt;CustomAttribute&gt;</code></summary>
+<details><summary><code>client.orders.customAttributes.list(orderId) -> SyncPagingIterable&amp;lt;CustomAttribute&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -28873,7 +28873,7 @@ client.webhooks().eventTypes().list(
 </details>
 
 ## Webhooks Subscriptions
-<details><summary><code>client.webhooks.subscriptions.list() -> SyncPagingIterable&lt;WebhookSubscription&gt;</code></summary>
+<details><summary><code>client.webhooks.subscriptions.list() -> SyncPagingIterable&amp;lt;WebhookSubscription&amp;gt;</code></summary>
 <dl>
 <dd>
 
@@ -29386,3 +29386,4 @@ contained in the list of event types in the [Subscription](entity:WebhookSubscri
 </dd>
 </dl>
 </details>
+
diff --git a/src/main/java/com/squareup/square/AsyncRawApplePayClient.java b/src/main/java/com/squareup/square/AsyncRawApplePayClient.java
index c7e7cf02..f8a02a0e 100644
--- a/src/main/java/com/squareup/square/AsyncRawApplePayClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawApplePayClient.java
@@ -66,10 +66,14 @@ public CompletableFuture<SquareClientHttpResponse<RegisterDomainResponse>> regis
      */
     public CompletableFuture<SquareClientHttpResponse<RegisterDomainResponse>> registerDomain(
             RegisterDomainRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/apple-pay/domains")
-                .build();
+                .addPathSegments("v2/apple-pay/domains");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -78,7 +82,7 @@ public CompletableFuture<SquareClientHttpResponse<RegisterDomainResponse>> regis
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawBankAccountsClient.java b/src/main/java/com/squareup/square/AsyncRawBankAccountsClient.java
index 93c04a34..95090c88 100644
--- a/src/main/java/com/squareup/square/AsyncRawBankAccountsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawBankAccountsClient.java
@@ -95,6 +95,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<BankAccount
             QueryStringMapper.addQueryParameter(
                     httpUrl, "customer_id", request.getCustomerId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -165,10 +170,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateBankAccountResponse>> cr
      */
     public CompletableFuture<SquareClientHttpResponse<CreateBankAccountResponse>> createBankAccount(
             CreateBankAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bank-accounts")
-                .build();
+                .addPathSegments("v2/bank-accounts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -177,7 +186,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateBankAccountResponse>> cr
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -230,13 +239,17 @@ public CompletableFuture<SquareClientHttpResponse<GetBankAccountByV1IdResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<GetBankAccountByV1IdResponse>> getByV1Id(
             GetByV1IdBankAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts/by-v1-id")
-                .addPathSegment(request.getV1BankAccountId())
-                .build();
+                .addPathSegment(request.getV1BankAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -287,13 +300,17 @@ public CompletableFuture<SquareClientHttpResponse<GetBankAccountResponse>> get(G
      */
     public CompletableFuture<SquareClientHttpResponse<GetBankAccountResponse>> get(
             GetBankAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts")
-                .addPathSegment(request.getBankAccountId())
-                .build();
+                .addPathSegment(request.getBankAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -344,14 +361,18 @@ public CompletableFuture<SquareClientHttpResponse<DisableBankAccountResponse>> d
      */
     public CompletableFuture<SquareClientHttpResponse<DisableBankAccountResponse>> disableBankAccount(
             DisableBankAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts")
                 .addPathSegment(request.getBankAccountId())
-                .addPathSegments("disable")
-                .build();
+                .addPathSegments("disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawBookingsClient.java b/src/main/java/com/squareup/square/AsyncRawBookingsClient.java
index 387e78ec..1ff5a88e 100644
--- a/src/main/java/com/squareup/square/AsyncRawBookingsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawBookingsClient.java
@@ -123,6 +123,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Booking>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "start_at_max", request.getStartAtMax().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -215,10 +220,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateBookingResponse>> create
      */
     public CompletableFuture<SquareClientHttpResponse<CreateBookingResponse>> create(
             CreateBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings")
-                .build();
+                .addPathSegments("v2/bookings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -227,7 +236,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateBookingResponse>> create
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -283,10 +292,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchAvailabilityResponse>> s
      */
     public CompletableFuture<SquareClientHttpResponse<SearchAvailabilityResponse>> searchAvailability(
             SearchAvailabilityRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/availability/search")
-                .build();
+                .addPathSegments("v2/bookings/availability/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -295,7 +308,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchAvailabilityResponse>> s
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -352,10 +365,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveBookingsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BulkRetrieveBookingsResponse>> bulkRetrieveBookings(
             BulkRetrieveBookingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/bookings/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -364,7 +381,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveBookingsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -416,12 +433,16 @@ public CompletableFuture<SquareClientHttpResponse<GetBusinessBookingProfileRespo
      */
     public CompletableFuture<SquareClientHttpResponse<GetBusinessBookingProfileResponse>> getBusinessProfile(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/business-booking-profile")
-                .build();
+                .addPathSegments("v2/bookings/business-booking-profile");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -475,13 +496,17 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
     public CompletableFuture<SquareClientHttpResponse<RetrieveLocationBookingProfileResponse>>
             retrieveLocationBookingProfile(
                     RetrieveLocationBookingProfileRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/location-booking-profiles")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -535,10 +560,14 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
     public CompletableFuture<SquareClientHttpResponse<BulkRetrieveTeamMemberBookingProfilesResponse>>
             bulkRetrieveTeamMemberBookingProfiles(
                     BulkRetrieveTeamMemberBookingProfilesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/team-member-booking-profiles/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/bookings/team-member-booking-profiles/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -547,7 +576,7 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -604,13 +633,17 @@ public CompletableFuture<SquareClientHttpResponse<GetBookingResponse>> get(GetBo
      */
     public CompletableFuture<SquareClientHttpResponse<GetBookingResponse>> get(
             GetBookingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
-                .addPathSegment(request.getBookingId())
-                .build();
+                .addPathSegment(request.getBookingId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -668,11 +701,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBookingResponse>> update
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateBookingResponse>> update(
             UpdateBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
-                .addPathSegment(request.getBookingId())
-                .build();
+                .addPathSegment(request.getBookingId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -681,7 +718,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBookingResponse>> update
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -740,12 +777,16 @@ public CompletableFuture<SquareClientHttpResponse<CancelBookingResponse>> cancel
      */
     public CompletableFuture<SquareClientHttpResponse<CancelBookingResponse>> cancel(
             CancelBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -754,7 +795,7 @@ public CompletableFuture<SquareClientHttpResponse<CancelBookingResponse>> cancel
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawCardsClient.java b/src/main/java/com/squareup/square/AsyncRawCardsClient.java
index f34826cb..03377a58 100644
--- a/src/main/java/com/squareup/square/AsyncRawCardsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawCardsClient.java
@@ -99,6 +99,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Card>>> lis
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_order", request.getSortOrder().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -166,10 +171,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateCardResponse>> create(Cr
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCardResponse>> create(
             CreateCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/cards")
-                .build();
+                .addPathSegments("v2/cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -178,7 +187,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCardResponse>> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -229,13 +238,17 @@ public CompletableFuture<SquareClientHttpResponse<GetCardResponse>> get(GetCards
      */
     public CompletableFuture<SquareClientHttpResponse<GetCardResponse>> get(
             GetCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/cards")
-                .addPathSegment(request.getCardId())
-                .build();
+                .addPathSegment(request.getCardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -287,14 +300,18 @@ public CompletableFuture<SquareClientHttpResponse<DisableCardResponse>> disable(
      */
     public CompletableFuture<SquareClientHttpResponse<DisableCardResponse>> disable(
             DisableCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/cards")
                 .addPathSegment(request.getCardId())
-                .addPathSegments("disable")
-                .build();
+                .addPathSegments("disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawCatalogClient.java b/src/main/java/com/squareup/square/AsyncRawCatalogClient.java
index 290ef2de..ccf12869 100644
--- a/src/main/java/com/squareup/square/AsyncRawCatalogClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawCatalogClient.java
@@ -90,10 +90,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchDeleteCatalogObjectsRespo
      */
     public CompletableFuture<SquareClientHttpResponse<BatchDeleteCatalogObjectsResponse>> batchDelete(
             BatchDeleteCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-delete")
-                .build();
+                .addPathSegments("v2/catalog/batch-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -102,7 +106,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchDeleteCatalogObjectsRespo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -166,10 +170,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetCatalogObjectsResponse
      */
     public CompletableFuture<SquareClientHttpResponse<BatchGetCatalogObjectsResponse>> batchGet(
             BatchGetCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-retrieve")
-                .build();
+                .addPathSegments("v2/catalog/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -178,7 +186,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetCatalogObjectsResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -253,10 +261,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpsertCatalogObjectsRespo
      */
     public CompletableFuture<SquareClientHttpResponse<BatchUpsertCatalogObjectsResponse>> batchUpsert(
             BatchUpsertCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-upsert")
-                .build();
+                .addPathSegments("v2/catalog/batch-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -265,7 +277,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpsertCatalogObjectsRespo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -319,12 +331,16 @@ public CompletableFuture<SquareClientHttpResponse<CatalogInfoResponse>> info() {
      * limits that can be used by the <code>BatchUpsertCatalogObjects</code> endpoint.
      */
     public CompletableFuture<SquareClientHttpResponse<CatalogInfoResponse>> info(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/info")
-                .build();
+                .addPathSegments("v2/catalog/info");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -425,6 +441,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CatalogObje
             QueryStringMapper.addQueryParameter(
                     httpUrl, "catalog_version", request.getCatalogVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -546,10 +567,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchCatalogObjectsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchCatalogObjectsResponse>> search(
             SearchCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/search")
-                .build();
+                .addPathSegments("v2/catalog/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -558,7 +583,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchCatalogObjectsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -662,10 +687,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchCatalogItemsResponse>> s
      */
     public CompletableFuture<SquareClientHttpResponse<SearchCatalogItemsResponse>> searchItems(
             SearchCatalogItemsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/search-catalog-items")
-                .build();
+                .addPathSegments("v2/catalog/search-catalog-items");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -674,7 +703,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchCatalogItemsResponse>> s
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -731,10 +760,14 @@ public CompletableFuture<SquareClientHttpResponse<UpdateItemModifierListsRespons
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateItemModifierListsResponse>> updateItemModifierLists(
             UpdateItemModifierListsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/update-item-modifier-lists")
-                .build();
+                .addPathSegments("v2/catalog/update-item-modifier-lists");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -743,7 +776,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateItemModifierListsRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -800,10 +833,14 @@ public CompletableFuture<SquareClientHttpResponse<UpdateItemTaxesResponse>> upda
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateItemTaxesResponse>> updateItemTaxes(
             UpdateItemTaxesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/update-item-taxes")
-                .build();
+                .addPathSegments("v2/catalog/update-item-taxes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -812,7 +849,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateItemTaxesResponse>> upda
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawChannelsClient.java b/src/main/java/com/squareup/square/AsyncRawChannelsClient.java
index 0beb2ce8..6f52cc20 100644
--- a/src/main/java/com/squareup/square/AsyncRawChannelsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawChannelsClient.java
@@ -82,6 +82,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Channel>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -145,10 +150,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveChannelsResponse>>
 
     public CompletableFuture<SquareClientHttpResponse<BulkRetrieveChannelsResponse>> bulkRetrieve(
             BulkRetrieveChannelsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/channels/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/channels/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -157,7 +166,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveChannelsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -203,13 +212,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveChannelResponse>> get(
 
     public CompletableFuture<SquareClientHttpResponse<RetrieveChannelResponse>> get(
             GetChannelsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/channels")
-                .addPathSegment(request.getChannelId())
-                .build();
+                .addPathSegment(request.getChannelId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawCheckoutClient.java b/src/main/java/com/squareup/square/AsyncRawCheckoutClient.java
index ac9c907b..31d77f93 100644
--- a/src/main/java/com/squareup/square/AsyncRawCheckoutClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawCheckoutClient.java
@@ -51,13 +51,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveLocationSettingsRespon
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveLocationSettingsResponse>> retrieveLocationSettings(
             RetrieveLocationSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/location-settings")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -110,11 +114,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationSettingsResponse
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateLocationSettingsResponse>> updateLocationSettings(
             UpdateLocationSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/location-settings")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -123,7 +131,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationSettingsResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -175,12 +183,16 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveMerchantSettingsRespon
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveMerchantSettingsResponse>> retrieveMerchantSettings(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/merchant-settings")
-                .build();
+                .addPathSegments("v2/online-checkout/merchant-settings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -233,10 +245,14 @@ public CompletableFuture<SquareClientHttpResponse<UpdateMerchantSettingsResponse
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateMerchantSettingsResponse>> updateMerchantSettings(
             UpdateMerchantSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/merchant-settings")
-                .build();
+                .addPathSegments("v2/online-checkout/merchant-settings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -245,7 +261,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateMerchantSettingsResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawCustomersClient.java b/src/main/java/com/squareup/square/AsyncRawCustomersClient.java
index 3746ac58..4391b14c 100644
--- a/src/main/java/com/squareup/square/AsyncRawCustomersClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawCustomersClient.java
@@ -121,6 +121,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Customer>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "count", request.getCount().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -239,10 +244,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerResponse>> creat
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCustomerResponse>> create(
             CreateCustomerRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers")
-                .build();
+                .addPathSegments("v2/customers");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -251,7 +260,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerResponse>> creat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -321,10 +330,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkCreateCustomersResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BulkCreateCustomersResponse>> batchCreate(
             BulkCreateCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-create")
-                .build();
+                .addPathSegments("v2/customers/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -333,7 +346,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkCreateCustomersResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -388,10 +401,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteCustomersResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BulkDeleteCustomersResponse>> bulkDeleteCustomers(
             BulkDeleteCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-delete")
-                .build();
+                .addPathSegments("v2/customers/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -400,7 +417,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteCustomersResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -455,10 +472,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveCustomersResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<BulkRetrieveCustomersResponse>> bulkRetrieveCustomers(
             BulkRetrieveCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/customers/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -467,7 +488,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkRetrieveCustomersResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -522,10 +543,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpdateCustomersResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BulkUpdateCustomersResponse>> bulkUpdateCustomers(
             BulkUpdateCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-update")
-                .build();
+                .addPathSegments("v2/customers/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -534,7 +559,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpdateCustomersResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -624,10 +649,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchCustomersResponse>> sear
      */
     public CompletableFuture<SquareClientHttpResponse<SearchCustomersResponse>> search(
             SearchCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/search")
-                .build();
+                .addPathSegments("v2/customers/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -636,7 +665,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchCustomersResponse>> sear
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -687,13 +716,17 @@ public CompletableFuture<SquareClientHttpResponse<GetCustomerResponse>> get(GetC
      */
     public CompletableFuture<SquareClientHttpResponse<GetCustomerResponse>> get(
             GetCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
-                .addPathSegment(request.getCustomerId())
-                .build();
+                .addPathSegment(request.getCustomerId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -747,11 +780,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerResponse>> updat
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateCustomerResponse>> update(
             UpdateCustomerRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
-                .addPathSegment(request.getCustomerId())
-                .build();
+                .addPathSegment(request.getCustomerId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -760,7 +797,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerResponse>> updat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -821,6 +858,11 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCustomerResponse>> delet
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
diff --git a/src/main/java/com/squareup/square/AsyncRawDevicesClient.java b/src/main/java/com/squareup/square/AsyncRawDevicesClient.java
index 5dc7fd67..b4091838 100644
--- a/src/main/java/com/squareup/square/AsyncRawDevicesClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawDevicesClient.java
@@ -88,6 +88,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Device>>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -156,13 +161,17 @@ public CompletableFuture<SquareClientHttpResponse<GetDeviceResponse>> get(GetDev
      */
     public CompletableFuture<SquareClientHttpResponse<GetDeviceResponse>> get(
             GetDevicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/devices")
-                .addPathSegment(request.getDeviceId())
-                .build();
+                .addPathSegment(request.getDeviceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawDisputesClient.java b/src/main/java/com/squareup/square/AsyncRawDisputesClient.java
index a32662d8..99314536 100644
--- a/src/main/java/com/squareup/square/AsyncRawDisputesClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawDisputesClient.java
@@ -95,6 +95,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Dispute>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -163,13 +168,17 @@ public CompletableFuture<SquareClientHttpResponse<GetDisputeResponse>> get(GetDi
      */
     public CompletableFuture<SquareClientHttpResponse<GetDisputeResponse>> get(
             GetDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
-                .addPathSegment(request.getDisputeId())
-                .build();
+                .addPathSegment(request.getDisputeId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -225,14 +234,18 @@ public CompletableFuture<SquareClientHttpResponse<AcceptDisputeResponse>> accept
      */
     public CompletableFuture<SquareClientHttpResponse<AcceptDisputeResponse>> accept(
             AcceptDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("accept")
-                .build();
+                .addPathSegments("accept");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -285,12 +298,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceFileRespo
      */
     public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceFileResponse>> createEvidenceFile(
             CreateEvidenceFileDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("evidence-files")
-                .build();
+                .addPathSegments("evidence-files");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -313,7 +330,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceFileRespo
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -366,12 +383,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceTextRespo
      */
     public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceTextResponse>> createEvidenceText(
             CreateDisputeEvidenceTextRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("evidence-text")
-                .build();
+                .addPathSegments("evidence-text");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -380,7 +401,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateDisputeEvidenceTextRespo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -444,14 +465,18 @@ public CompletableFuture<SquareClientHttpResponse<SubmitEvidenceResponse>> submi
      */
     public CompletableFuture<SquareClientHttpResponse<SubmitEvidenceResponse>> submitEvidence(
             SubmitEvidenceDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("submit-evidence")
-                .build();
+                .addPathSegments("submit-evidence");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawEmployeesClient.java b/src/main/java/com/squareup/square/AsyncRawEmployeesClient.java
index af975ef0..e88990e0 100644
--- a/src/main/java/com/squareup/square/AsyncRawEmployeesClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawEmployeesClient.java
@@ -74,6 +74,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Employee>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -136,13 +141,17 @@ public CompletableFuture<SquareClientHttpResponse<GetEmployeeResponse>> get(GetE
 
     public CompletableFuture<SquareClientHttpResponse<GetEmployeeResponse>> get(
             GetEmployeesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/employees")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawEventsClient.java b/src/main/java/com/squareup/square/AsyncRawEventsClient.java
index 3aac832c..7f63bd14 100644
--- a/src/main/java/com/squareup/square/AsyncRawEventsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawEventsClient.java
@@ -65,10 +65,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchEventsResponse>> searchE
      */
     public CompletableFuture<SquareClientHttpResponse<SearchEventsResponse>> searchEvents(
             SearchEventsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events")
-                .build();
+                .addPathSegments("v2/events");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -77,7 +81,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchEventsResponse>> searchE
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -132,12 +136,16 @@ public CompletableFuture<SquareClientHttpResponse<DisableEventsResponse>> disabl
      */
     public CompletableFuture<SquareClientHttpResponse<DisableEventsResponse>> disableEvents(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events/disable")
-                .build();
+                .addPathSegments("v2/events/disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -187,12 +195,16 @@ public CompletableFuture<SquareClientHttpResponse<EnableEventsResponse>> enableE
      */
     public CompletableFuture<SquareClientHttpResponse<EnableEventsResponse>> enableEvents(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events/enable")
-                .build();
+                .addPathSegments("v2/events/enable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -265,6 +277,11 @@ public CompletableFuture<SquareClientHttpResponse<ListEventTypesResponse>> listE
             QueryStringMapper.addQueryParameter(
                     httpUrl, "api_version", request.getApiVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/AsyncRawGiftCardsClient.java b/src/main/java/com/squareup/square/AsyncRawGiftCardsClient.java
index 728ec6c0..58f784fc 100644
--- a/src/main/java/com/squareup/square/AsyncRawGiftCardsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawGiftCardsClient.java
@@ -107,6 +107,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<GiftCard>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "customer_id", request.getCustomerId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -183,10 +188,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateGiftCardResponse>> creat
      */
     public CompletableFuture<SquareClientHttpResponse<CreateGiftCardResponse>> create(
             CreateGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards")
-                .build();
+                .addPathSegments("v2/gift-cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -195,7 +204,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateGiftCardResponse>> creat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -247,10 +256,14 @@ public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromGanResponse>> g
      */
     public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromGanResponse>> getFromGan(
             GetGiftCardFromGanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/from-gan")
-                .build();
+                .addPathSegments("v2/gift-cards/from-gan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -259,7 +272,7 @@ public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromGanResponse>> g
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -312,10 +325,14 @@ public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromNonceResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromNonceResponse>> getFromNonce(
             GetGiftCardFromNonceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/from-nonce")
-                .build();
+                .addPathSegments("v2/gift-cards/from-nonce");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -324,7 +341,7 @@ public CompletableFuture<SquareClientHttpResponse<GetGiftCardFromNonceResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -377,12 +394,16 @@ public CompletableFuture<SquareClientHttpResponse<LinkCustomerToGiftCardResponse
      */
     public CompletableFuture<SquareClientHttpResponse<LinkCustomerToGiftCardResponse>> linkCustomer(
             LinkCustomerToGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
                 .addPathSegment(request.getGiftCardId())
-                .addPathSegments("link-customer")
-                .build();
+                .addPathSegments("link-customer");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -391,7 +412,7 @@ public CompletableFuture<SquareClientHttpResponse<LinkCustomerToGiftCardResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -444,12 +465,16 @@ public CompletableFuture<SquareClientHttpResponse<UnlinkCustomerFromGiftCardResp
      */
     public CompletableFuture<SquareClientHttpResponse<UnlinkCustomerFromGiftCardResponse>> unlinkCustomer(
             UnlinkCustomerFromGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
                 .addPathSegment(request.getGiftCardId())
-                .addPathSegments("unlink-customer")
-                .build();
+                .addPathSegments("unlink-customer");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -458,7 +483,7 @@ public CompletableFuture<SquareClientHttpResponse<UnlinkCustomerFromGiftCardResp
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -511,13 +536,17 @@ public CompletableFuture<SquareClientHttpResponse<GetGiftCardResponse>> get(GetG
      */
     public CompletableFuture<SquareClientHttpResponse<GetGiftCardResponse>> get(
             GetGiftCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawInventoryClient.java b/src/main/java/com/squareup/square/AsyncRawInventoryClient.java
index 17795c1a..b7a6ca87 100644
--- a/src/main/java/com/squareup/square/AsyncRawInventoryClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawInventoryClient.java
@@ -72,13 +72,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInventoryAdjustmentResponse
      */
     public CompletableFuture<SquareClientHttpResponse<GetInventoryAdjustmentResponse>> deprecatedGetAdjustment(
             DeprecatedGetAdjustmentInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/adjustment")
-                .addPathSegment(request.getAdjustmentId())
-                .build();
+                .addPathSegment(request.getAdjustmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -132,13 +136,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInventoryAdjustmentResponse
      */
     public CompletableFuture<SquareClientHttpResponse<GetInventoryAdjustmentResponse>> getAdjustment(
             GetAdjustmentInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/adjustments")
-                .addPathSegment(request.getAdjustmentId())
-                .build();
+                .addPathSegment(request.getAdjustmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -192,10 +200,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>> deprecatedBatchChange(
             BatchChangeInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-change")
-                .build();
+                .addPathSegments("v2/inventory/batch-change");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -204,7 +216,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -278,10 +290,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryChangesRespon
      */
     public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryChangesResponse>> deprecatedBatchGetChanges(
             BatchRetrieveInventoryChangesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-retrieve-changes")
-                .build();
+                .addPathSegments("v2/inventory/batch-retrieve-changes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -290,7 +306,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryChangesRespon
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -363,10 +379,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryCountsRespons
      */
     public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryCountsResponse>> deprecatedBatchGetCounts(
             BatchGetInventoryCountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-retrieve-counts")
-                .build();
+                .addPathSegments("v2/inventory/batch-retrieve-counts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -375,7 +395,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetInventoryCountsRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -434,10 +454,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>> batchCreateChanges(
             BatchChangeInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/changes/batch-create")
-                .build();
+                .addPathSegments("v2/inventory/changes/batch-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -446,7 +470,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchChangeInventoryResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -534,10 +558,14 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCh
      */
     public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryChange>>> batchGetChanges(
             BatchRetrieveInventoryChangesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/changes/batch-retrieve")
-                .build();
+                .addPathSegments("v2/inventory/changes/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -546,7 +574,7 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCh
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -665,10 +693,14 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCo
      */
     public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCount>>> batchGetCounts(
             BatchGetInventoryCountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/counts/batch-retrieve")
-                .build();
+                .addPathSegments("v2/inventory/counts/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -677,7 +709,7 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -749,13 +781,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInventoryPhysicalCountRespo
      */
     public CompletableFuture<SquareClientHttpResponse<GetInventoryPhysicalCountResponse>> deprecatedGetPhysicalCount(
             DeprecatedGetPhysicalCountInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/physical-count")
-                .addPathSegment(request.getPhysicalCountId())
-                .build();
+                .addPathSegment(request.getPhysicalCountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -810,13 +846,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInventoryPhysicalCountRespo
      */
     public CompletableFuture<SquareClientHttpResponse<GetInventoryPhysicalCountResponse>> getPhysicalCount(
             GetPhysicalCountInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/physical-counts")
-                .addPathSegment(request.getPhysicalCountId())
-                .build();
+                .addPathSegment(request.getPhysicalCountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -871,13 +911,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInventoryTransferResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<GetInventoryTransferResponse>> getTransfer(
             GetTransferInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/transfers")
-                .addPathSegment(request.getTransferId())
-                .build();
+                .addPathSegment(request.getTransferId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -947,6 +991,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCo
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -1048,6 +1097,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<InventoryCh
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/AsyncRawInvoicesClient.java b/src/main/java/com/squareup/square/AsyncRawInvoicesClient.java
index ef2153a8..b22d6656 100644
--- a/src/main/java/com/squareup/square/AsyncRawInvoicesClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawInvoicesClient.java
@@ -89,6 +89,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Invoice>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -163,10 +168,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateInvoiceResponse>> create
      */
     public CompletableFuture<SquareClientHttpResponse<CreateInvoiceResponse>> create(
             CreateInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/invoices")
-                .build();
+                .addPathSegments("v2/invoices");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -175,7 +184,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateInvoiceResponse>> create
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -236,10 +245,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchInvoicesResponse>> searc
      */
     public CompletableFuture<SquareClientHttpResponse<SearchInvoicesResponse>> search(
             SearchInvoicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/invoices/search")
-                .build();
+                .addPathSegments("v2/invoices/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -248,7 +261,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchInvoicesResponse>> searc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -299,13 +312,17 @@ public CompletableFuture<SquareClientHttpResponse<GetInvoiceResponse>> get(GetIn
      */
     public CompletableFuture<SquareClientHttpResponse<GetInvoiceResponse>> get(
             GetInvoicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
-                .addPathSegment(request.getInvoiceId())
-                .build();
+                .addPathSegment(request.getInvoiceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -361,11 +378,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateInvoiceResponse>> update
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateInvoiceResponse>> update(
             UpdateInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
-                .addPathSegment(request.getInvoiceId())
-                .build();
+                .addPathSegment(request.getInvoiceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -374,7 +395,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateInvoiceResponse>> update
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -437,6 +458,11 @@ public CompletableFuture<SquareClientHttpResponse<DeleteInvoiceResponse>> delete
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
@@ -499,12 +525,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateInvoiceAttachmentRespons
      */
     public CompletableFuture<SquareClientHttpResponse<CreateInvoiceAttachmentResponse>> createInvoiceAttachment(
             CreateInvoiceAttachmentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("attachments")
-                .build();
+                .addPathSegments("attachments");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -527,7 +557,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateInvoiceAttachmentRespons
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -581,15 +611,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteInvoiceAttachmentRespons
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteInvoiceAttachmentResponse>> deleteInvoiceAttachment(
             DeleteInvoiceAttachmentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
                 .addPathSegments("attachments")
-                .addPathSegment(request.getAttachmentId())
-                .build();
+                .addPathSegment(request.getAttachmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -644,12 +678,16 @@ public CompletableFuture<SquareClientHttpResponse<CancelInvoiceResponse>> cancel
      */
     public CompletableFuture<SquareClientHttpResponse<CancelInvoiceResponse>> cancel(
             CancelInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -658,7 +696,7 @@ public CompletableFuture<SquareClientHttpResponse<CancelInvoiceResponse>> cancel
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -729,12 +767,16 @@ public CompletableFuture<SquareClientHttpResponse<PublishInvoiceResponse>> publi
      */
     public CompletableFuture<SquareClientHttpResponse<PublishInvoiceResponse>> publish(
             PublishInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("publish")
-                .build();
+                .addPathSegments("publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -743,7 +785,7 @@ public CompletableFuture<SquareClientHttpResponse<PublishInvoiceResponse>> publi
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawLaborClient.java b/src/main/java/com/squareup/square/AsyncRawLaborClient.java
index 39757426..36d17fed 100644
--- a/src/main/java/com/squareup/square/AsyncRawLaborClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawLaborClient.java
@@ -82,10 +82,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateScheduledShiftResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateScheduledShiftResponse>> createScheduledShift(
             CreateScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -94,7 +98,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateScheduledShiftResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -155,10 +159,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkPublishScheduledShiftsResp
      */
     public CompletableFuture<SquareClientHttpResponse<BulkPublishScheduledShiftsResponse>> bulkPublishScheduledShifts(
             BulkPublishScheduledShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts/bulk-publish")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts/bulk-publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -167,7 +175,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkPublishScheduledShiftsResp
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -240,10 +248,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchScheduledShiftsResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchScheduledShiftsResponse>> searchScheduledShifts(
             SearchScheduledShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts/search")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -252,7 +264,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchScheduledShiftsResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -305,13 +317,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveScheduledShiftResponse
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveScheduledShiftResponse>> retrieveScheduledShift(
             RetrieveScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -383,11 +399,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateScheduledShiftResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateScheduledShiftResponse>> updateScheduledShift(
             UpdateScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -396,7 +416,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateScheduledShiftResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -451,12 +471,16 @@ public CompletableFuture<SquareClientHttpResponse<PublishScheduledShiftResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<PublishScheduledShiftResponse>> publishScheduledShift(
             PublishScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
                 .addPathSegment(request.getId())
-                .addPathSegments("publish")
-                .build();
+                .addPathSegments("publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -465,7 +489,7 @@ public CompletableFuture<SquareClientHttpResponse<PublishScheduledShiftResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -554,10 +578,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTimecardResponse>> creat
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTimecardResponse>> createTimecard(
             CreateTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/timecards")
-                .build();
+                .addPathSegments("v2/labor/timecards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -566,7 +594,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTimecardResponse>> creat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -697,10 +725,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchTimecardsResponse>> sear
      */
     public CompletableFuture<SquareClientHttpResponse<SearchTimecardsResponse>> searchTimecards(
             SearchTimecardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/timecards/search")
-                .build();
+                .addPathSegments("v2/labor/timecards/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -709,7 +741,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchTimecardsResponse>> sear
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -761,13 +793,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveTimecardResponse>> ret
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveTimecardResponse>> retrieveTimecard(
             RetrieveTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -826,11 +862,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTimecardResponse>> updat
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateTimecardResponse>> updateTimecard(
             UpdateTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -839,7 +879,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTimecardResponse>> updat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -891,13 +931,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteTimecardResponse>> delet
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteTimecardResponse>> deleteTimecard(
             DeleteTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawLocationsClient.java b/src/main/java/com/squareup/square/AsyncRawLocationsClient.java
index 82187940..d5eec538 100644
--- a/src/main/java/com/squareup/square/AsyncRawLocationsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawLocationsClient.java
@@ -53,12 +53,16 @@ public CompletableFuture<SquareClientHttpResponse<ListLocationsResponse>> list()
      * including those with an inactive status. Locations are listed alphabetically by <code>name</code>.
      */
     public CompletableFuture<SquareClientHttpResponse<ListLocationsResponse>> list(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations")
-                .build();
+                .addPathSegments("v2/locations");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -146,10 +150,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateLocationResponse>> creat
      */
     public CompletableFuture<SquareClientHttpResponse<CreateLocationResponse>> create(
             CreateLocationRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations")
-                .build();
+                .addPathSegments("v2/locations");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -158,7 +166,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateLocationResponse>> creat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -211,13 +219,17 @@ public CompletableFuture<SquareClientHttpResponse<GetLocationResponse>> get(GetL
      */
     public CompletableFuture<SquareClientHttpResponse<GetLocationResponse>> get(
             GetLocationsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -267,11 +279,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationResponse>> updat
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateLocationResponse>> update(
             UpdateLocationRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -280,7 +296,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationResponse>> updat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -340,12 +356,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateCheckoutResponse>> check
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCheckoutResponse>> checkouts(
             CreateCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
-                .addPathSegments("checkouts")
-                .build();
+                .addPathSegments("checkouts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -354,7 +374,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCheckoutResponse>> check
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawLoyaltyClient.java b/src/main/java/com/squareup/square/AsyncRawLoyaltyClient.java
index 6e9a24a1..e8842a02 100644
--- a/src/main/java/com/squareup/square/AsyncRawLoyaltyClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawLoyaltyClient.java
@@ -81,10 +81,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyEventsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyEventsResponse>> searchEvents(
             SearchLoyaltyEventsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/events/search")
-                .build();
+                .addPathSegments("v2/loyalty/events/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -93,7 +97,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyEventsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawMerchantsClient.java b/src/main/java/com/squareup/square/AsyncRawMerchantsClient.java
index d62e1267..9583e433 100644
--- a/src/main/java/com/squareup/square/AsyncRawMerchantsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawMerchantsClient.java
@@ -102,6 +102,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Merchant>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -170,13 +175,17 @@ public CompletableFuture<SquareClientHttpResponse<GetMerchantResponse>> get(GetM
      */
     public CompletableFuture<SquareClientHttpResponse<GetMerchantResponse>> get(
             GetMerchantsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
-                .addPathSegment(request.getMerchantId())
-                .build();
+                .addPathSegment(request.getMerchantId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawOAuthClient.java b/src/main/java/com/squareup/square/AsyncRawOAuthClient.java
index 9d96fd9c..0e6b8ff9 100644
--- a/src/main/java/com/squareup/square/AsyncRawOAuthClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawOAuthClient.java
@@ -94,10 +94,14 @@ public CompletableFuture<SquareClientHttpResponse<RevokeTokenResponse>> revokeTo
      */
     public CompletableFuture<SquareClientHttpResponse<RevokeTokenResponse>> revokeToken(
             RevokeTokenRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/revoke")
-                .build();
+                .addPathSegments("oauth2/revoke");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -106,7 +110,7 @@ public CompletableFuture<SquareClientHttpResponse<RevokeTokenResponse>> revokeTo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -197,10 +201,14 @@ public CompletableFuture<SquareClientHttpResponse<ObtainTokenResponse>> obtainTo
      */
     public CompletableFuture<SquareClientHttpResponse<ObtainTokenResponse>> obtainToken(
             ObtainTokenRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/token")
-                .build();
+                .addPathSegments("oauth2/token");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -209,7 +217,7 @@ public CompletableFuture<SquareClientHttpResponse<ObtainTokenResponse>> obtainTo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -274,12 +282,16 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveTokenStatusResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveTokenStatusResponse>> retrieveTokenStatus(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/token/status")
-                .build();
+                .addPathSegments("oauth2/token/status");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -323,12 +335,16 @@ public CompletableFuture<SquareClientHttpResponse<Void>> authorize() {
     }
 
     public CompletableFuture<SquareClientHttpResponse<Void>> authorize(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/authorize")
-                .build();
+                .addPathSegments("oauth2/authorize");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .build();
diff --git a/src/main/java/com/squareup/square/AsyncRawOrdersClient.java b/src/main/java/com/squareup/square/AsyncRawOrdersClient.java
index 7704a402..b16c2816 100644
--- a/src/main/java/com/squareup/square/AsyncRawOrdersClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawOrdersClient.java
@@ -89,10 +89,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateOrderResponse>> create(C
      */
     public CompletableFuture<SquareClientHttpResponse<CreateOrderResponse>> create(
             CreateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders")
-                .build();
+                .addPathSegments("v2/orders");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -101,7 +105,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateOrderResponse>> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -154,10 +158,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetOrdersResponse>> batch
      */
     public CompletableFuture<SquareClientHttpResponse<BatchGetOrdersResponse>> batchGet(
             BatchGetOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/batch-retrieve")
-                .build();
+                .addPathSegments("v2/orders/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -166,7 +174,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetOrdersResponse>> batch
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -218,10 +226,14 @@ public CompletableFuture<SquareClientHttpResponse<CalculateOrderResponse>> calcu
      */
     public CompletableFuture<SquareClientHttpResponse<CalculateOrderResponse>> calculate(
             CalculateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/calculate")
-                .build();
+                .addPathSegments("v2/orders/calculate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -230,7 +242,7 @@ public CompletableFuture<SquareClientHttpResponse<CalculateOrderResponse>> calcu
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -283,10 +295,14 @@ public CompletableFuture<SquareClientHttpResponse<CloneOrderResponse>> clone(Clo
      */
     public CompletableFuture<SquareClientHttpResponse<CloneOrderResponse>> clone(
             CloneOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/clone")
-                .build();
+                .addPathSegments("v2/orders/clone");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -295,7 +311,7 @@ public CompletableFuture<SquareClientHttpResponse<CloneOrderResponse>> clone(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -412,10 +428,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchOrdersResponse>> search(
      */
     public CompletableFuture<SquareClientHttpResponse<SearchOrdersResponse>> search(
             SearchOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/search")
-                .build();
+                .addPathSegments("v2/orders/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -424,7 +444,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchOrdersResponse>> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -475,13 +495,17 @@ public CompletableFuture<SquareClientHttpResponse<GetOrderResponse>> get(GetOrde
      */
     public CompletableFuture<SquareClientHttpResponse<GetOrderResponse>> get(
             GetOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -557,11 +581,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateOrderResponse>> update(U
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateOrderResponse>> update(
             UpdateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -570,7 +598,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateOrderResponse>> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -645,12 +673,16 @@ public CompletableFuture<SquareClientHttpResponse<PayOrderResponse>> pay(PayOrde
      */
     public CompletableFuture<SquareClientHttpResponse<PayOrderResponse>> pay(
             PayOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
-                .addPathSegments("pay")
-                .build();
+                .addPathSegments("pay");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -659,7 +691,7 @@ public CompletableFuture<SquareClientHttpResponse<PayOrderResponse>> pay(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawPaymentsClient.java b/src/main/java/com/squareup/square/AsyncRawPaymentsClient.java
index 7409b66c..8be8dd99 100644
--- a/src/main/java/com/squareup/square/AsyncRawPaymentsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawPaymentsClient.java
@@ -160,6 +160,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Payment>>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_field", request.getSortField().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -240,10 +245,14 @@ public CompletableFuture<SquareClientHttpResponse<CreatePaymentResponse>> create
      */
     public CompletableFuture<SquareClientHttpResponse<CreatePaymentResponse>> create(
             CreatePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/payments")
-                .build();
+                .addPathSegments("v2/payments");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -252,7 +261,7 @@ public CompletableFuture<SquareClientHttpResponse<CreatePaymentResponse>> create
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -320,10 +329,14 @@ public CompletableFuture<SquareClientHttpResponse<CancelPaymentByIdempotencyKeyR
      */
     public CompletableFuture<SquareClientHttpResponse<CancelPaymentByIdempotencyKeyResponse>> cancelByIdempotencyKey(
             CancelPaymentByIdempotencyKeyRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/payments/cancel")
-                .build();
+                .addPathSegments("v2/payments/cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -332,7 +345,7 @@ public CompletableFuture<SquareClientHttpResponse<CancelPaymentByIdempotencyKeyR
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -385,13 +398,17 @@ public CompletableFuture<SquareClientHttpResponse<GetPaymentResponse>> get(GetPa
      */
     public CompletableFuture<SquareClientHttpResponse<GetPaymentResponse>> get(
             GetPaymentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
-                .addPathSegment(request.getPaymentId())
-                .build();
+                .addPathSegment(request.getPaymentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -443,11 +460,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdatePaymentResponse>> update
      */
     public CompletableFuture<SquareClientHttpResponse<UpdatePaymentResponse>> update(
             UpdatePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
-                .addPathSegment(request.getPaymentId())
-                .build();
+                .addPathSegment(request.getPaymentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -456,7 +477,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdatePaymentResponse>> update
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -509,14 +530,18 @@ public CompletableFuture<SquareClientHttpResponse<CancelPaymentResponse>> cancel
      */
     public CompletableFuture<SquareClientHttpResponse<CancelPaymentResponse>> cancel(
             CancelPaymentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
                 .addPathSegment(request.getPaymentId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -571,12 +596,16 @@ public CompletableFuture<SquareClientHttpResponse<CompletePaymentResponse>> comp
      */
     public CompletableFuture<SquareClientHttpResponse<CompletePaymentResponse>> complete(
             CompletePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
                 .addPathSegment(request.getPaymentId())
-                .addPathSegments("complete")
-                .build();
+                .addPathSegments("complete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -585,7 +614,7 @@ public CompletableFuture<SquareClientHttpResponse<CompletePaymentResponse>> comp
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawPayoutsClient.java b/src/main/java/com/squareup/square/AsyncRawPayoutsClient.java
index c652bbaf..1003417d 100644
--- a/src/main/java/com/squareup/square/AsyncRawPayoutsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawPayoutsClient.java
@@ -107,6 +107,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Payout>>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -177,13 +182,17 @@ public CompletableFuture<SquareClientHttpResponse<GetPayoutResponse>> get(GetPay
      */
     public CompletableFuture<SquareClientHttpResponse<GetPayoutResponse>> get(
             GetPayoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payouts")
-                .addPathSegment(request.getPayoutId())
-                .build();
+                .addPathSegment(request.getPayoutId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -253,6 +262,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<PayoutEntry
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/AsyncRawRefundsClient.java b/src/main/java/com/squareup/square/AsyncRawRefundsClient.java
index 5b19892b..5bc0bd1b 100644
--- a/src/main/java/com/squareup/square/AsyncRawRefundsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawRefundsClient.java
@@ -137,6 +137,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<PaymentRefu
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_field", request.getSortField().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -213,10 +218,14 @@ public CompletableFuture<SquareClientHttpResponse<RefundPaymentResponse>> refund
      */
     public CompletableFuture<SquareClientHttpResponse<RefundPaymentResponse>> refundPayment(
             RefundPaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/refunds")
-                .build();
+                .addPathSegments("v2/refunds");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -225,7 +234,7 @@ public CompletableFuture<SquareClientHttpResponse<RefundPaymentResponse>> refund
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -276,13 +285,17 @@ public CompletableFuture<SquareClientHttpResponse<GetPaymentRefundResponse>> get
      */
     public CompletableFuture<SquareClientHttpResponse<GetPaymentRefundResponse>> get(
             GetRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/refunds")
-                .addPathSegment(request.getRefundId())
-                .build();
+                .addPathSegment(request.getRefundId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawSitesClient.java b/src/main/java/com/squareup/square/AsyncRawSitesClient.java
index c0b0f0d3..adc930fd 100644
--- a/src/main/java/com/squareup/square/AsyncRawSitesClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawSitesClient.java
@@ -42,12 +42,16 @@ public CompletableFuture<SquareClientHttpResponse<ListSitesResponse>> list() {
      * <p><strong>Note:</strong> Square Online APIs are publicly available as part of an early access program. For more information, see <a href="https://developer.squareup.com/docs/online-api#early-access-program-for-square-online-apis">Early access program for Square Online APIs</a>.</p>
      */
     public CompletableFuture<SquareClientHttpResponse<ListSitesResponse>> list(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/sites")
-                .build();
+                .addPathSegments("v2/sites");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawSnippetsClient.java b/src/main/java/com/squareup/square/AsyncRawSnippetsClient.java
index 72ecbdcd..bd6db2d3 100644
--- a/src/main/java/com/squareup/square/AsyncRawSnippetsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawSnippetsClient.java
@@ -53,14 +53,18 @@ public CompletableFuture<SquareClientHttpResponse<GetSnippetResponse>> get(GetSn
      */
     public CompletableFuture<SquareClientHttpResponse<GetSnippetResponse>> get(
             GetSnippetsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -116,12 +120,16 @@ public CompletableFuture<SquareClientHttpResponse<UpsertSnippetResponse>> upsert
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertSnippetResponse>> upsert(
             UpsertSnippetRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -130,7 +138,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertSnippetResponse>> upsert
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -185,14 +193,18 @@ public CompletableFuture<SquareClientHttpResponse<DeleteSnippetResponse>> delete
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteSnippetResponse>> delete(
             DeleteSnippetsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawSubscriptionsClient.java b/src/main/java/com/squareup/square/AsyncRawSubscriptionsClient.java
index eb59092f..e336bd2a 100644
--- a/src/main/java/com/squareup/square/AsyncRawSubscriptionsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawSubscriptionsClient.java
@@ -85,10 +85,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateSubscriptionResponse>> c
      */
     public CompletableFuture<SquareClientHttpResponse<CreateSubscriptionResponse>> create(
             CreateSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions")
-                .build();
+                .addPathSegments("v2/subscriptions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -97,7 +101,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateSubscriptionResponse>> c
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -151,10 +155,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkSwapPlanResponse>> bulkSwa
      */
     public CompletableFuture<SquareClientHttpResponse<BulkSwapPlanResponse>> bulkSwapPlan(
             BulkSwapPlanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions/bulk-swap-plan")
-                .build();
+                .addPathSegments("v2/subscriptions/bulk-swap-plan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -163,7 +171,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkSwapPlanResponse>> bulkSwa
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -274,10 +282,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchSubscriptionsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchSubscriptionsResponse>> search(
             SearchSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions/search")
-                .build();
+                .addPathSegments("v2/subscriptions/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -286,7 +298,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchSubscriptionsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -346,6 +358,11 @@ public CompletableFuture<SquareClientHttpResponse<GetSubscriptionResponse>> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "include", request.getInclude().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -400,11 +417,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateSubscriptionResponse>> u
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateSubscriptionResponse>> update(
             UpdateSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -413,7 +434,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateSubscriptionResponse>> u
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -466,15 +487,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteSubscriptionActionRespon
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteSubscriptionActionResponse>> deleteAction(
             DeleteActionSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
                 .addPathSegments("actions")
-                .addPathSegment(request.getActionId())
-                .build();
+                .addPathSegment(request.getActionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -529,12 +554,16 @@ public CompletableFuture<SquareClientHttpResponse<ChangeBillingAnchorDateRespons
      */
     public CompletableFuture<SquareClientHttpResponse<ChangeBillingAnchorDateResponse>> changeBillingAnchorDate(
             ChangeBillingAnchorDateRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("billing-anchor")
-                .build();
+                .addPathSegments("billing-anchor");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -543,7 +572,7 @@ public CompletableFuture<SquareClientHttpResponse<ChangeBillingAnchorDateRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -600,14 +629,18 @@ public CompletableFuture<SquareClientHttpResponse<CancelSubscriptionResponse>> c
      */
     public CompletableFuture<SquareClientHttpResponse<CancelSubscriptionResponse>> cancel(
             CancelSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -672,6 +705,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<Subscriptio
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -743,12 +781,16 @@ public CompletableFuture<SquareClientHttpResponse<PauseSubscriptionResponse>> pa
      */
     public CompletableFuture<SquareClientHttpResponse<PauseSubscriptionResponse>> pause(
             PauseSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("pause")
-                .build();
+                .addPathSegments("pause");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -757,7 +799,7 @@ public CompletableFuture<SquareClientHttpResponse<PauseSubscriptionResponse>> pa
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -810,12 +852,16 @@ public CompletableFuture<SquareClientHttpResponse<ResumeSubscriptionResponse>> r
      */
     public CompletableFuture<SquareClientHttpResponse<ResumeSubscriptionResponse>> resume(
             ResumeSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("resume")
-                .build();
+                .addPathSegments("resume");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -824,7 +870,7 @@ public CompletableFuture<SquareClientHttpResponse<ResumeSubscriptionResponse>> r
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -878,12 +924,16 @@ public CompletableFuture<SquareClientHttpResponse<SwapPlanResponse>> swapPlan(Sw
      */
     public CompletableFuture<SquareClientHttpResponse<SwapPlanResponse>> swapPlan(
             SwapPlanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("swap-plan")
-                .build();
+                .addPathSegments("swap-plan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -892,7 +942,7 @@ public CompletableFuture<SquareClientHttpResponse<SwapPlanResponse>> swapPlan(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawTeamClient.java b/src/main/java/com/squareup/square/AsyncRawTeamClient.java
index 17cd6cb5..4b633d24 100644
--- a/src/main/java/com/squareup/square/AsyncRawTeamClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawTeamClient.java
@@ -73,6 +73,11 @@ public CompletableFuture<SquareClientHttpResponse<ListJobsResponse>> listJobs(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -126,10 +131,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateJobResponse>> createJob(
      */
     public CompletableFuture<SquareClientHttpResponse<CreateJobResponse>> createJob(
             CreateJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/jobs")
-                .build();
+                .addPathSegments("v2/team-members/jobs");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -138,7 +147,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateJobResponse>> createJob(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -189,13 +198,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveJobResponse>> retrieve
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveJobResponse>> retrieveJob(
             RetrieveJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members/jobs")
-                .addPathSegment(request.getJobId())
-                .build();
+                .addPathSegment(request.getJobId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -249,11 +262,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateJobResponse>> updateJob(
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateJobResponse>> updateJob(
             UpdateJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members/jobs")
-                .addPathSegment(request.getJobId())
-                .build();
+                .addPathSegment(request.getJobId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -262,7 +279,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateJobResponse>> updateJob(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawTeamMembersClient.java b/src/main/java/com/squareup/square/AsyncRawTeamMembersClient.java
index 5dd4b1cf..0c813b77 100644
--- a/src/main/java/com/squareup/square/AsyncRawTeamMembersClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawTeamMembersClient.java
@@ -94,10 +94,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTeamMemberResponse>> cre
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTeamMemberResponse>> create(
             CreateTeamMemberRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members")
-                .build();
+                .addPathSegments("v2/team-members");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -106,7 +110,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTeamMemberResponse>> cre
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -166,10 +170,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchCreateTeamMembersResponse
      */
     public CompletableFuture<SquareClientHttpResponse<BatchCreateTeamMembersResponse>> batchCreate(
             BatchCreateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/bulk-create")
-                .build();
+                .addPathSegments("v2/team-members/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -178,7 +186,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchCreateTeamMembersResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -239,10 +247,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpdateTeamMembersResponse
      */
     public CompletableFuture<SquareClientHttpResponse<BatchUpdateTeamMembersResponse>> batchUpdate(
             BatchUpdateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/bulk-update")
-                .build();
+                .addPathSegments("v2/team-members/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -251,7 +263,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpdateTeamMembersResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -327,10 +339,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchTeamMembersResponse>> se
      */
     public CompletableFuture<SquareClientHttpResponse<SearchTeamMembersResponse>> search(
             SearchTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/search")
-                .build();
+                .addPathSegments("v2/team-members/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -339,7 +355,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchTeamMembersResponse>> se
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -393,13 +409,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTeamMemberResponse>> get(Ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetTeamMemberResponse>> get(
             GetTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -452,11 +472,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTeamMemberResponse>> upd
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateTeamMemberResponse>> update(
             UpdateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -465,7 +489,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTeamMemberResponse>> upd
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawTerminalClient.java b/src/main/java/com/squareup/square/AsyncRawTerminalClient.java
index 79919945..f2f40943 100644
--- a/src/main/java/com/squareup/square/AsyncRawTerminalClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawTerminalClient.java
@@ -50,14 +50,18 @@ public CompletableFuture<SquareClientHttpResponse<DismissTerminalActionResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<DismissTerminalActionResponse>> dismissTerminalAction(
             DismissTerminalActionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
                 .addPathSegment(request.getActionId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -109,14 +113,18 @@ public CompletableFuture<SquareClientHttpResponse<DismissTerminalCheckoutRespons
      */
     public CompletableFuture<SquareClientHttpResponse<DismissTerminalCheckoutResponse>> dismissTerminalCheckout(
             DismissTerminalCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
                 .addPathSegment(request.getCheckoutId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -168,14 +176,18 @@ public CompletableFuture<SquareClientHttpResponse<DismissTerminalRefundResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<DismissTerminalRefundResponse>> dismissTerminalRefund(
             DismissTerminalRefundRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
                 .addPathSegment(request.getTerminalRefundId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/AsyncRawTransferOrdersClient.java b/src/main/java/com/squareup/square/AsyncRawTransferOrdersClient.java
index 7a069cff..ad390e3d 100644
--- a/src/main/java/com/squareup/square/AsyncRawTransferOrdersClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawTransferOrdersClient.java
@@ -105,10 +105,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTransferOrderResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTransferOrderResponse>> create(
             CreateTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/transfer-orders")
-                .build();
+                .addPathSegments("v2/transfer-orders");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -117,7 +121,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTransferOrderResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -213,10 +217,14 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<TransferOrd
      */
     public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<TransferOrder>>> search(
             SearchTransferOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/transfer-orders/search")
-                .build();
+                .addPathSegments("v2/transfer-orders/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -225,7 +233,7 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<TransferOrd
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -310,13 +318,17 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveTransferOrderResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<RetrieveTransferOrderResponse>> get(
             GetTransferOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
-                .addPathSegment(request.getTransferOrderId())
-                .build();
+                .addPathSegment(request.getTransferOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -372,11 +384,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTransferOrderResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateTransferOrderResponse>> update(
             UpdateTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
-                .addPathSegment(request.getTransferOrderId())
-                .build();
+                .addPathSegment(request.getTransferOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -385,7 +401,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateTransferOrderResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -452,6 +468,11 @@ public CompletableFuture<SquareClientHttpResponse<DeleteTransferOrderResponse>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
@@ -523,12 +544,16 @@ public CompletableFuture<SquareClientHttpResponse<CancelTransferOrderResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CancelTransferOrderResponse>> cancel(
             CancelTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -537,7 +562,7 @@ public CompletableFuture<SquareClientHttpResponse<CancelTransferOrderResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -616,12 +641,16 @@ public CompletableFuture<SquareClientHttpResponse<ReceiveTransferOrderResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<ReceiveTransferOrderResponse>> receive(
             ReceiveTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("receive")
-                .build();
+                .addPathSegments("receive");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -630,7 +659,7 @@ public CompletableFuture<SquareClientHttpResponse<ReceiveTransferOrderResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -693,12 +722,16 @@ public CompletableFuture<SquareClientHttpResponse<StartTransferOrderResponse>> s
      */
     public CompletableFuture<SquareClientHttpResponse<StartTransferOrderResponse>> start(
             StartTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("start")
-                .build();
+                .addPathSegments("start");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -707,7 +740,7 @@ public CompletableFuture<SquareClientHttpResponse<StartTransferOrderResponse>> s
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawV1TransactionsClient.java b/src/main/java/com/squareup/square/AsyncRawV1TransactionsClient.java
index e70ae07e..6cfd2e3c 100644
--- a/src/main/java/com/squareup/square/AsyncRawV1TransactionsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawV1TransactionsClient.java
@@ -67,6 +67,11 @@ public CompletableFuture<SquareClientHttpResponse<List<V1Order>>> v1ListOrders(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "batch_token", request.getBatchToken().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -119,15 +124,19 @@ public CompletableFuture<SquareClientHttpResponse<V1Order>> v1RetrieveOrder(V1Re
      */
     public CompletableFuture<SquareClientHttpResponse<V1Order>> v1RetrieveOrder(
             V1RetrieveOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v1")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -176,13 +185,17 @@ public CompletableFuture<SquareClientHttpResponse<V1Order>> v1UpdateOrder(V1Upda
      */
     public CompletableFuture<SquareClientHttpResponse<V1Order>> v1UpdateOrder(
             V1UpdateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v1")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -191,7 +204,7 @@ public CompletableFuture<SquareClientHttpResponse<V1Order>> v1UpdateOrder(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncRawVendorsClient.java b/src/main/java/com/squareup/square/AsyncRawVendorsClient.java
index c662f46e..8d00175a 100644
--- a/src/main/java/com/squareup/square/AsyncRawVendorsClient.java
+++ b/src/main/java/com/squareup/square/AsyncRawVendorsClient.java
@@ -58,10 +58,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchCreateVendorsResponse>> b
      */
     public CompletableFuture<SquareClientHttpResponse<BatchCreateVendorsResponse>> batchCreate(
             BatchCreateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-create")
-                .build();
+                .addPathSegments("v2/vendors/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -70,7 +74,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchCreateVendorsResponse>> b
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -138,10 +142,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetVendorsResponse>> batc
      */
     public CompletableFuture<SquareClientHttpResponse<BatchGetVendorsResponse>> batchGet(
             BatchGetVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/vendors/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -150,7 +158,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchGetVendorsResponse>> batc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -202,10 +210,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpdateVendorsResponse>> b
      */
     public CompletableFuture<SquareClientHttpResponse<BatchUpdateVendorsResponse>> batchUpdate(
             BatchUpdateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-update")
-                .build();
+                .addPathSegments("v2/vendors/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -214,7 +226,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpdateVendorsResponse>> b
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -266,10 +278,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateVendorResponse>> create(
      */
     public CompletableFuture<SquareClientHttpResponse<CreateVendorResponse>> create(
             CreateVendorRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/create")
-                .build();
+                .addPathSegments("v2/vendors/create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -278,7 +294,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateVendorResponse>> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -343,10 +359,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchVendorsResponse>> search
      */
     public CompletableFuture<SquareClientHttpResponse<SearchVendorsResponse>> search(
             SearchVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/search")
-                .build();
+                .addPathSegments("v2/vendors/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -355,7 +375,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchVendorsResponse>> search
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -406,13 +426,17 @@ public CompletableFuture<SquareClientHttpResponse<GetVendorResponse>> get(GetVen
      */
     public CompletableFuture<SquareClientHttpResponse<GetVendorResponse>> get(
             GetVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/vendors")
-                .addPathSegment(request.getVendorId())
-                .build();
+                .addPathSegment(request.getVendorId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -462,11 +486,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateVendorResponse>> update(
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateVendorResponse>> update(
             UpdateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/vendors")
-                .addPathSegment(request.getVendorId())
-                .build();
+                .addPathSegment(request.getVendorId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -475,7 +503,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateVendorResponse>> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/AsyncSquareClientBuilder.java b/src/main/java/com/squareup/square/AsyncSquareClientBuilder.java
index 0bd04578..1bf8d661 100644
--- a/src/main/java/com/squareup/square/AsyncSquareClientBuilder.java
+++ b/src/main/java/com/squareup/square/AsyncSquareClientBuilder.java
@@ -5,6 +5,7 @@
 
 import com.squareup.square.core.ClientOptions;
 import com.squareup.square.core.Environment;
+import com.squareup.square.core.LogConfig;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
@@ -25,6 +26,8 @@ public class AsyncSquareClientBuilder {
 
     private OkHttpClient httpClient;
 
+    private Optional<LogConfig> logging = Optional.empty();
+
     /**
      * Sets token.
      * Defaults to the SQUARE_TOKEN environment variable.
@@ -76,6 +79,14 @@ public AsyncSquareClientBuilder httpClient(OkHttpClient httpClient) {
         return this;
     }
 
+    /**
+     * Configure logging for the SDK. Silent by default — no log output unless explicitly configured.
+     */
+    public AsyncSquareClientBuilder logging(LogConfig logging) {
+        this.logging = Optional.of(logging);
+        return this;
+    }
+
     /**
      * Add a custom header to be sent with all requests.
      * For headers that need to be computed dynamically or conditionally, use the setAdditional() method override instead.
@@ -97,6 +108,7 @@ protected ClientOptions buildClientOptions() {
         setHttpClient(builder);
         setTimeouts(builder);
         setRetries(builder);
+        setLogging(builder);
         for (Map.Entry<String, String> header : this.customHeaders.entrySet()) {
             builder.addHeader(header.getKey(), header.getValue());
         }
@@ -190,6 +202,18 @@ protected void setHttpClient(ClientOptions.Builder builder) {
         }
     }
 
+    /**
+     * Sets the logging configuration for the SDK.
+     * Override this method to customize logging behavior.
+     *
+     * @param builder The ClientOptions.Builder to configure
+     */
+    protected void setLogging(ClientOptions.Builder builder) {
+        if (this.logging.isPresent()) {
+            builder.logging(this.logging.get());
+        }
+    }
+
     /**
      * Override this method to add any additional configuration to the client.
      * This method is called at the end of the configuration chain, allowing you to add
diff --git a/src/main/java/com/squareup/square/RawApplePayClient.java b/src/main/java/com/squareup/square/RawApplePayClient.java
index 79cef207..7b6bcd62 100644
--- a/src/main/java/com/squareup/square/RawApplePayClient.java
+++ b/src/main/java/com/squareup/square/RawApplePayClient.java
@@ -61,10 +61,14 @@ public SquareClientHttpResponse<RegisterDomainResponse> registerDomain(RegisterD
      */
     public SquareClientHttpResponse<RegisterDomainResponse> registerDomain(
             RegisterDomainRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/apple-pay/domains")
-                .build();
+                .addPathSegments("v2/apple-pay/domains");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -73,7 +77,7 @@ public SquareClientHttpResponse<RegisterDomainResponse> registerDomain(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawBankAccountsClient.java b/src/main/java/com/squareup/square/RawBankAccountsClient.java
index 6b58a9db..c0fd086c 100644
--- a/src/main/java/com/squareup/square/RawBankAccountsClient.java
+++ b/src/main/java/com/squareup/square/RawBankAccountsClient.java
@@ -88,6 +88,11 @@ public SquareClientHttpResponse<SyncPagingIterable<BankAccount>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "customer_id", request.getCustomerId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -137,10 +142,14 @@ public SquareClientHttpResponse<CreateBankAccountResponse> createBankAccount(Cre
      */
     public SquareClientHttpResponse<CreateBankAccountResponse> createBankAccount(
             CreateBankAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bank-accounts")
-                .build();
+                .addPathSegments("v2/bank-accounts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -149,7 +158,7 @@ public SquareClientHttpResponse<CreateBankAccountResponse> createBankAccount(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -187,13 +196,17 @@ public SquareClientHttpResponse<GetBankAccountByV1IdResponse> getByV1Id(GetByV1I
      */
     public SquareClientHttpResponse<GetBankAccountByV1IdResponse> getByV1Id(
             GetByV1IdBankAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts/by-v1-id")
-                .addPathSegment(request.getV1BankAccountId())
-                .build();
+                .addPathSegment(request.getV1BankAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -230,13 +243,17 @@ public SquareClientHttpResponse<GetBankAccountResponse> get(GetBankAccountsReque
      */
     public SquareClientHttpResponse<GetBankAccountResponse> get(
             GetBankAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts")
-                .addPathSegment(request.getBankAccountId())
-                .build();
+                .addPathSegment(request.getBankAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -273,14 +290,18 @@ public SquareClientHttpResponse<DisableBankAccountResponse> disableBankAccount(D
      */
     public SquareClientHttpResponse<DisableBankAccountResponse> disableBankAccount(
             DisableBankAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bank-accounts")
                 .addPathSegment(request.getBankAccountId())
-                .addPathSegments("disable")
-                .build();
+                .addPathSegments("disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawBookingsClient.java b/src/main/java/com/squareup/square/RawBookingsClient.java
index bd2065f8..d147f33d 100644
--- a/src/main/java/com/squareup/square/RawBookingsClient.java
+++ b/src/main/java/com/squareup/square/RawBookingsClient.java
@@ -117,6 +117,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Booking>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "start_at_max", request.getStartAtMax().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -189,10 +194,14 @@ public SquareClientHttpResponse<CreateBookingResponse> create(CreateBookingReque
      */
     public SquareClientHttpResponse<CreateBookingResponse> create(
             CreateBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings")
-                .build();
+                .addPathSegments("v2/bookings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -201,7 +210,7 @@ public SquareClientHttpResponse<CreateBookingResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -242,10 +251,14 @@ public SquareClientHttpResponse<SearchAvailabilityResponse> searchAvailability(S
      */
     public SquareClientHttpResponse<SearchAvailabilityResponse> searchAvailability(
             SearchAvailabilityRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/availability/search")
-                .build();
+                .addPathSegments("v2/bookings/availability/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -254,7 +267,7 @@ public SquareClientHttpResponse<SearchAvailabilityResponse> searchAvailability(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -297,10 +310,14 @@ public SquareClientHttpResponse<BulkRetrieveBookingsResponse> bulkRetrieveBookin
      */
     public SquareClientHttpResponse<BulkRetrieveBookingsResponse> bulkRetrieveBookings(
             BulkRetrieveBookingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/bookings/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -309,7 +326,7 @@ public SquareClientHttpResponse<BulkRetrieveBookingsResponse> bulkRetrieveBookin
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -347,12 +364,16 @@ public SquareClientHttpResponse<GetBusinessBookingProfileResponse> getBusinessPr
      */
     public SquareClientHttpResponse<GetBusinessBookingProfileResponse> getBusinessProfile(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/business-booking-profile")
-                .build();
+                .addPathSegments("v2/bookings/business-booking-profile");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -391,13 +412,17 @@ public SquareClientHttpResponse<RetrieveLocationBookingProfileResponse> retrieve
      */
     public SquareClientHttpResponse<RetrieveLocationBookingProfileResponse> retrieveLocationBookingProfile(
             RetrieveLocationBookingProfileRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/location-booking-profiles")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -437,10 +462,14 @@ public SquareClientHttpResponse<RetrieveLocationBookingProfileResponse> retrieve
     public SquareClientHttpResponse<BulkRetrieveTeamMemberBookingProfilesResponse>
             bulkRetrieveTeamMemberBookingProfiles(
                     BulkRetrieveTeamMemberBookingProfilesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/team-member-booking-profiles/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/bookings/team-member-booking-profiles/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -449,7 +478,7 @@ public SquareClientHttpResponse<RetrieveLocationBookingProfileResponse> retrieve
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -491,13 +520,17 @@ public SquareClientHttpResponse<GetBookingResponse> get(GetBookingsRequest reque
      * To call this endpoint with seller-level permissions, set <code>APPOINTMENTS_ALL_READ</code> and <code>APPOINTMENTS_READ</code> for the OAuth scope.</p>
      */
     public SquareClientHttpResponse<GetBookingResponse> get(GetBookingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
-                .addPathSegment(request.getBookingId())
-                .build();
+                .addPathSegment(request.getBookingId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -541,11 +574,15 @@ public SquareClientHttpResponse<UpdateBookingResponse> update(UpdateBookingReque
      */
     public SquareClientHttpResponse<UpdateBookingResponse> update(
             UpdateBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
-                .addPathSegment(request.getBookingId())
-                .build();
+                .addPathSegment(request.getBookingId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -554,7 +591,7 @@ public SquareClientHttpResponse<UpdateBookingResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -599,12 +636,16 @@ public SquareClientHttpResponse<CancelBookingResponse> cancel(CancelBookingReque
      */
     public SquareClientHttpResponse<CancelBookingResponse> cancel(
             CancelBookingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -613,7 +654,7 @@ public SquareClientHttpResponse<CancelBookingResponse> cancel(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawCardsClient.java b/src/main/java/com/squareup/square/RawCardsClient.java
index 1649c3e7..9b4bd821 100644
--- a/src/main/java/com/squareup/square/RawCardsClient.java
+++ b/src/main/java/com/squareup/square/RawCardsClient.java
@@ -94,6 +94,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Card>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_order", request.getSortOrder().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -142,10 +147,14 @@ public SquareClientHttpResponse<CreateCardResponse> create(CreateCardRequest req
      */
     public SquareClientHttpResponse<CreateCardResponse> create(
             CreateCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/cards")
-                .build();
+                .addPathSegments("v2/cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -154,7 +163,7 @@ public SquareClientHttpResponse<CreateCardResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -190,13 +199,17 @@ public SquareClientHttpResponse<GetCardResponse> get(GetCardsRequest request) {
      * Retrieves details for a specific Card.
      */
     public SquareClientHttpResponse<GetCardResponse> get(GetCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/cards")
-                .addPathSegment(request.getCardId())
-                .build();
+                .addPathSegment(request.getCardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -234,14 +247,18 @@ public SquareClientHttpResponse<DisableCardResponse> disable(DisableCardsRequest
      */
     public SquareClientHttpResponse<DisableCardResponse> disable(
             DisableCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/cards")
                 .addPathSegment(request.getCardId())
-                .addPathSegments("disable")
-                .build();
+                .addPathSegments("disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawCatalogClient.java b/src/main/java/com/squareup/square/RawCatalogClient.java
index b039d54a..49156d1a 100644
--- a/src/main/java/com/squareup/square/RawCatalogClient.java
+++ b/src/main/java/com/squareup/square/RawCatalogClient.java
@@ -85,10 +85,14 @@ public SquareClientHttpResponse<BatchDeleteCatalogObjectsResponse> batchDelete(
      */
     public SquareClientHttpResponse<BatchDeleteCatalogObjectsResponse> batchDelete(
             BatchDeleteCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-delete")
-                .build();
+                .addPathSegments("v2/catalog/batch-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -97,7 +101,7 @@ public SquareClientHttpResponse<BatchDeleteCatalogObjectsResponse> batchDelete(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -146,10 +150,14 @@ public SquareClientHttpResponse<BatchGetCatalogObjectsResponse> batchGet(BatchGe
      */
     public SquareClientHttpResponse<BatchGetCatalogObjectsResponse> batchGet(
             BatchGetCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-retrieve")
-                .build();
+                .addPathSegments("v2/catalog/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -158,7 +166,7 @@ public SquareClientHttpResponse<BatchGetCatalogObjectsResponse> batchGet(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -219,10 +227,14 @@ public SquareClientHttpResponse<BatchUpsertCatalogObjectsResponse> batchUpsert(
      */
     public SquareClientHttpResponse<BatchUpsertCatalogObjectsResponse> batchUpsert(
             BatchUpsertCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/batch-upsert")
-                .build();
+                .addPathSegments("v2/catalog/batch-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -231,7 +243,7 @@ public SquareClientHttpResponse<BatchUpsertCatalogObjectsResponse> batchUpsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -271,12 +283,16 @@ public SquareClientHttpResponse<CatalogInfoResponse> info() {
      * limits that can be used by the <code>BatchUpsertCatalogObjects</code> endpoint.
      */
     public SquareClientHttpResponse<CatalogInfoResponse> info(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/info")
-                .build();
+                .addPathSegments("v2/catalog/info");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -361,6 +377,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CatalogObject>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "catalog_version", request.getCatalogVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -460,10 +481,14 @@ public SquareClientHttpResponse<SearchCatalogObjectsResponse> search(SearchCatal
      */
     public SquareClientHttpResponse<SearchCatalogObjectsResponse> search(
             SearchCatalogObjectsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/search")
-                .build();
+                .addPathSegments("v2/catalog/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -472,7 +497,7 @@ public SquareClientHttpResponse<SearchCatalogObjectsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -560,10 +585,14 @@ public SquareClientHttpResponse<SearchCatalogItemsResponse> searchItems(SearchCa
      */
     public SquareClientHttpResponse<SearchCatalogItemsResponse> searchItems(
             SearchCatalogItemsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/search-catalog-items")
-                .build();
+                .addPathSegments("v2/catalog/search-catalog-items");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -572,7 +601,7 @@ public SquareClientHttpResponse<SearchCatalogItemsResponse> searchItems(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -615,10 +644,14 @@ public SquareClientHttpResponse<UpdateItemModifierListsResponse> updateItemModif
      */
     public SquareClientHttpResponse<UpdateItemModifierListsResponse> updateItemModifierLists(
             UpdateItemModifierListsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/update-item-modifier-lists")
-                .build();
+                .addPathSegments("v2/catalog/update-item-modifier-lists");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -627,7 +660,7 @@ public SquareClientHttpResponse<UpdateItemModifierListsResponse> updateItemModif
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -669,10 +702,14 @@ public SquareClientHttpResponse<UpdateItemTaxesResponse> updateItemTaxes(UpdateI
      */
     public SquareClientHttpResponse<UpdateItemTaxesResponse> updateItemTaxes(
             UpdateItemTaxesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/update-item-taxes")
-                .build();
+                .addPathSegments("v2/catalog/update-item-taxes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -681,7 +718,7 @@ public SquareClientHttpResponse<UpdateItemTaxesResponse> updateItemTaxes(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawChannelsClient.java b/src/main/java/com/squareup/square/RawChannelsClient.java
index 1e851073..4976aedc 100644
--- a/src/main/java/com/squareup/square/RawChannelsClient.java
+++ b/src/main/java/com/squareup/square/RawChannelsClient.java
@@ -76,6 +76,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Channel>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -118,10 +123,14 @@ public SquareClientHttpResponse<BulkRetrieveChannelsResponse> bulkRetrieve(BulkR
 
     public SquareClientHttpResponse<BulkRetrieveChannelsResponse> bulkRetrieve(
             BulkRetrieveChannelsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/channels/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/channels/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -130,7 +139,7 @@ public SquareClientHttpResponse<BulkRetrieveChannelsResponse> bulkRetrieve(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -162,13 +171,17 @@ public SquareClientHttpResponse<RetrieveChannelResponse> get(GetChannelsRequest
 
     public SquareClientHttpResponse<RetrieveChannelResponse> get(
             GetChannelsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/channels")
-                .addPathSegment(request.getChannelId())
-                .build();
+                .addPathSegment(request.getChannelId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawCheckoutClient.java b/src/main/java/com/squareup/square/RawCheckoutClient.java
index 5c7b0468..e6a4df18 100644
--- a/src/main/java/com/squareup/square/RawCheckoutClient.java
+++ b/src/main/java/com/squareup/square/RawCheckoutClient.java
@@ -47,13 +47,17 @@ public SquareClientHttpResponse<RetrieveLocationSettingsResponse> retrieveLocati
      */
     public SquareClientHttpResponse<RetrieveLocationSettingsResponse> retrieveLocationSettings(
             RetrieveLocationSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/location-settings")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -91,11 +95,15 @@ public SquareClientHttpResponse<UpdateLocationSettingsResponse> updateLocationSe
      */
     public SquareClientHttpResponse<UpdateLocationSettingsResponse> updateLocationSettings(
             UpdateLocationSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/location-settings")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -104,7 +112,7 @@ public SquareClientHttpResponse<UpdateLocationSettingsResponse> updateLocationSe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -142,12 +150,16 @@ public SquareClientHttpResponse<RetrieveMerchantSettingsResponse> retrieveMercha
      */
     public SquareClientHttpResponse<RetrieveMerchantSettingsResponse> retrieveMerchantSettings(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/merchant-settings")
-                .build();
+                .addPathSegments("v2/online-checkout/merchant-settings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -185,10 +197,14 @@ public SquareClientHttpResponse<UpdateMerchantSettingsResponse> updateMerchantSe
      */
     public SquareClientHttpResponse<UpdateMerchantSettingsResponse> updateMerchantSettings(
             UpdateMerchantSettingsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/merchant-settings")
-                .build();
+                .addPathSegments("v2/online-checkout/merchant-settings");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -197,7 +213,7 @@ public SquareClientHttpResponse<UpdateMerchantSettingsResponse> updateMerchantSe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawCustomersClient.java b/src/main/java/com/squareup/square/RawCustomersClient.java
index c50a652e..569198cf 100644
--- a/src/main/java/com/squareup/square/RawCustomersClient.java
+++ b/src/main/java/com/squareup/square/RawCustomersClient.java
@@ -114,6 +114,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Customer>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "count", request.getCount().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -212,10 +217,14 @@ public SquareClientHttpResponse<CreateCustomerResponse> create(CreateCustomerReq
      */
     public SquareClientHttpResponse<CreateCustomerResponse> create(
             CreateCustomerRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers")
-                .build();
+                .addPathSegments("v2/customers");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -224,7 +233,7 @@ public SquareClientHttpResponse<CreateCustomerResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -280,10 +289,14 @@ public SquareClientHttpResponse<BulkCreateCustomersResponse> batchCreate(BulkCre
      */
     public SquareClientHttpResponse<BulkCreateCustomersResponse> batchCreate(
             BulkCreateCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-create")
-                .build();
+                .addPathSegments("v2/customers/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -292,7 +305,7 @@ public SquareClientHttpResponse<BulkCreateCustomersResponse> batchCreate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -333,10 +346,14 @@ public SquareClientHttpResponse<BulkDeleteCustomersResponse> bulkDeleteCustomers
      */
     public SquareClientHttpResponse<BulkDeleteCustomersResponse> bulkDeleteCustomers(
             BulkDeleteCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-delete")
-                .build();
+                .addPathSegments("v2/customers/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -345,7 +362,7 @@ public SquareClientHttpResponse<BulkDeleteCustomersResponse> bulkDeleteCustomers
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -386,10 +403,14 @@ public SquareClientHttpResponse<BulkRetrieveCustomersResponse> bulkRetrieveCusto
      */
     public SquareClientHttpResponse<BulkRetrieveCustomersResponse> bulkRetrieveCustomers(
             BulkRetrieveCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/customers/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -398,7 +419,7 @@ public SquareClientHttpResponse<BulkRetrieveCustomersResponse> bulkRetrieveCusto
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -439,10 +460,14 @@ public SquareClientHttpResponse<BulkUpdateCustomersResponse> bulkUpdateCustomers
      */
     public SquareClientHttpResponse<BulkUpdateCustomersResponse> bulkUpdateCustomers(
             BulkUpdateCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/bulk-update")
-                .build();
+                .addPathSegments("v2/customers/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -451,7 +476,7 @@ public SquareClientHttpResponse<BulkUpdateCustomersResponse> bulkUpdateCustomers
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -527,10 +552,14 @@ public SquareClientHttpResponse<SearchCustomersResponse> search(SearchCustomersR
      */
     public SquareClientHttpResponse<SearchCustomersResponse> search(
             SearchCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/search")
-                .build();
+                .addPathSegments("v2/customers/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -539,7 +568,7 @@ public SquareClientHttpResponse<SearchCustomersResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -577,13 +606,17 @@ public SquareClientHttpResponse<GetCustomerResponse> get(GetCustomersRequest req
      */
     public SquareClientHttpResponse<GetCustomerResponse> get(
             GetCustomersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
-                .addPathSegment(request.getCustomerId())
-                .build();
+                .addPathSegment(request.getCustomerId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -623,11 +656,15 @@ public SquareClientHttpResponse<UpdateCustomerResponse> update(UpdateCustomerReq
      */
     public SquareClientHttpResponse<UpdateCustomerResponse> update(
             UpdateCustomerRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
-                .addPathSegment(request.getCustomerId())
-                .build();
+                .addPathSegment(request.getCustomerId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -636,7 +673,7 @@ public SquareClientHttpResponse<UpdateCustomerResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -684,6 +721,11 @@ public SquareClientHttpResponse<DeleteCustomerResponse> delete(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
diff --git a/src/main/java/com/squareup/square/RawDevicesClient.java b/src/main/java/com/squareup/square/RawDevicesClient.java
index b16c7af8..3901e117 100644
--- a/src/main/java/com/squareup/square/RawDevicesClient.java
+++ b/src/main/java/com/squareup/square/RawDevicesClient.java
@@ -83,6 +83,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Device>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -130,13 +135,17 @@ public SquareClientHttpResponse<GetDeviceResponse> get(GetDevicesRequest request
      * Retrieves Device with the associated <code>device_id</code>.
      */
     public SquareClientHttpResponse<GetDeviceResponse> get(GetDevicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/devices")
-                .addPathSegment(request.getDeviceId())
-                .build();
+                .addPathSegment(request.getDeviceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawDisputesClient.java b/src/main/java/com/squareup/square/RawDisputesClient.java
index 3471145d..2a9a60c0 100644
--- a/src/main/java/com/squareup/square/RawDisputesClient.java
+++ b/src/main/java/com/squareup/square/RawDisputesClient.java
@@ -89,6 +89,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Dispute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -136,13 +141,17 @@ public SquareClientHttpResponse<GetDisputeResponse> get(GetDisputesRequest reque
      * Returns details about a specific dispute.
      */
     public SquareClientHttpResponse<GetDisputeResponse> get(GetDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
-                .addPathSegment(request.getDisputeId())
-                .build();
+                .addPathSegment(request.getDisputeId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -184,14 +193,18 @@ public SquareClientHttpResponse<AcceptDisputeResponse> accept(AcceptDisputesRequ
      */
     public SquareClientHttpResponse<AcceptDisputeResponse> accept(
             AcceptDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("accept")
-                .build();
+                .addPathSegments("accept");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -230,12 +243,16 @@ public SquareClientHttpResponse<CreateDisputeEvidenceFileResponse> createEvidenc
      */
     public SquareClientHttpResponse<CreateDisputeEvidenceFileResponse> createEvidenceFile(
             CreateEvidenceFileDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("evidence-files")
-                .build();
+                .addPathSegments("evidence-files");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -258,7 +275,7 @@ public SquareClientHttpResponse<CreateDisputeEvidenceFileResponse> createEvidenc
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -297,12 +314,16 @@ public SquareClientHttpResponse<CreateDisputeEvidenceTextResponse> createEvidenc
      */
     public SquareClientHttpResponse<CreateDisputeEvidenceTextResponse> createEvidenceText(
             CreateDisputeEvidenceTextRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("evidence-text")
-                .build();
+                .addPathSegments("evidence-text");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -311,7 +332,7 @@ public SquareClientHttpResponse<CreateDisputeEvidenceTextResponse> createEvidenc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -360,14 +381,18 @@ public SquareClientHttpResponse<SubmitEvidenceResponse> submitEvidence(SubmitEvi
      */
     public SquareClientHttpResponse<SubmitEvidenceResponse> submitEvidence(
             SubmitEvidenceDisputesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
-                .addPathSegments("submit-evidence")
-                .build();
+                .addPathSegments("submit-evidence");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawEmployeesClient.java b/src/main/java/com/squareup/square/RawEmployeesClient.java
index 93f25679..3e46d7c3 100644
--- a/src/main/java/com/squareup/square/RawEmployeesClient.java
+++ b/src/main/java/com/squareup/square/RawEmployeesClient.java
@@ -67,6 +67,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Employee>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -109,13 +114,17 @@ public SquareClientHttpResponse<GetEmployeeResponse> get(GetEmployeesRequest req
 
     public SquareClientHttpResponse<GetEmployeeResponse> get(
             GetEmployeesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/employees")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawEventsClient.java b/src/main/java/com/squareup/square/RawEventsClient.java
index 7eeec70b..82e0ee63 100644
--- a/src/main/java/com/squareup/square/RawEventsClient.java
+++ b/src/main/java/com/squareup/square/RawEventsClient.java
@@ -60,10 +60,14 @@ public SquareClientHttpResponse<SearchEventsResponse> searchEvents(SearchEventsR
      */
     public SquareClientHttpResponse<SearchEventsResponse> searchEvents(
             SearchEventsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events")
-                .build();
+                .addPathSegments("v2/events");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -72,7 +76,7 @@ public SquareClientHttpResponse<SearchEventsResponse> searchEvents(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -112,12 +116,16 @@ public SquareClientHttpResponse<DisableEventsResponse> disableEvents() {
      * Disabling events for a specific time period prevents them from being searchable, even if you re-enable them later.
      */
     public SquareClientHttpResponse<DisableEventsResponse> disableEvents(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events/disable")
-                .build();
+                .addPathSegments("v2/events/disable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -152,12 +160,16 @@ public SquareClientHttpResponse<EnableEventsResponse> enableEvents() {
      * Enables events to make them searchable. Only events that occur while in the enabled state are searchable.
      */
     public SquareClientHttpResponse<EnableEventsResponse> enableEvents(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/events/enable")
-                .build();
+                .addPathSegments("v2/events/enable");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -214,6 +226,11 @@ public SquareClientHttpResponse<ListEventTypesResponse> listEventTypes(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "api_version", request.getApiVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/RawGiftCardsClient.java b/src/main/java/com/squareup/square/RawGiftCardsClient.java
index ed838efd..cbfe117b 100644
--- a/src/main/java/com/squareup/square/RawGiftCardsClient.java
+++ b/src/main/java/com/squareup/square/RawGiftCardsClient.java
@@ -100,6 +100,11 @@ public SquareClientHttpResponse<SyncPagingIterable<GiftCard>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "customer_id", request.getCustomerId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -156,10 +161,14 @@ public SquareClientHttpResponse<CreateGiftCardResponse> create(CreateGiftCardReq
      */
     public SquareClientHttpResponse<CreateGiftCardResponse> create(
             CreateGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards")
-                .build();
+                .addPathSegments("v2/gift-cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -168,7 +177,7 @@ public SquareClientHttpResponse<CreateGiftCardResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -206,10 +215,14 @@ public SquareClientHttpResponse<GetGiftCardFromGanResponse> getFromGan(GetGiftCa
      */
     public SquareClientHttpResponse<GetGiftCardFromGanResponse> getFromGan(
             GetGiftCardFromGanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/from-gan")
-                .build();
+                .addPathSegments("v2/gift-cards/from-gan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -218,7 +231,7 @@ public SquareClientHttpResponse<GetGiftCardFromGanResponse> getFromGan(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -256,10 +269,14 @@ public SquareClientHttpResponse<GetGiftCardFromNonceResponse> getFromNonce(GetGi
      */
     public SquareClientHttpResponse<GetGiftCardFromNonceResponse> getFromNonce(
             GetGiftCardFromNonceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/from-nonce")
-                .build();
+                .addPathSegments("v2/gift-cards/from-nonce");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -268,7 +285,7 @@ public SquareClientHttpResponse<GetGiftCardFromNonceResponse> getFromNonce(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -307,12 +324,16 @@ public SquareClientHttpResponse<LinkCustomerToGiftCardResponse> linkCustomer(
      */
     public SquareClientHttpResponse<LinkCustomerToGiftCardResponse> linkCustomer(
             LinkCustomerToGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
                 .addPathSegment(request.getGiftCardId())
-                .addPathSegments("link-customer")
-                .build();
+                .addPathSegments("link-customer");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -321,7 +342,7 @@ public SquareClientHttpResponse<LinkCustomerToGiftCardResponse> linkCustomer(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -360,12 +381,16 @@ public SquareClientHttpResponse<UnlinkCustomerFromGiftCardResponse> unlinkCustom
      */
     public SquareClientHttpResponse<UnlinkCustomerFromGiftCardResponse> unlinkCustomer(
             UnlinkCustomerFromGiftCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
                 .addPathSegment(request.getGiftCardId())
-                .addPathSegments("unlink-customer")
-                .build();
+                .addPathSegments("unlink-customer");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -374,7 +399,7 @@ public SquareClientHttpResponse<UnlinkCustomerFromGiftCardResponse> unlinkCustom
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -413,13 +438,17 @@ public SquareClientHttpResponse<GetGiftCardResponse> get(GetGiftCardsRequest req
      */
     public SquareClientHttpResponse<GetGiftCardResponse> get(
             GetGiftCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/gift-cards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawInventoryClient.java b/src/main/java/com/squareup/square/RawInventoryClient.java
index e91bbd24..07e38d9d 100644
--- a/src/main/java/com/squareup/square/RawInventoryClient.java
+++ b/src/main/java/com/squareup/square/RawInventoryClient.java
@@ -67,13 +67,17 @@ public SquareClientHttpResponse<GetInventoryAdjustmentResponse> deprecatedGetAdj
      */
     public SquareClientHttpResponse<GetInventoryAdjustmentResponse> deprecatedGetAdjustment(
             DeprecatedGetAdjustmentInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/adjustment")
-                .addPathSegment(request.getAdjustmentId())
-                .build();
+                .addPathSegment(request.getAdjustmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -113,13 +117,17 @@ public SquareClientHttpResponse<GetInventoryAdjustmentResponse> getAdjustment(
      */
     public SquareClientHttpResponse<GetInventoryAdjustmentResponse> getAdjustment(
             GetAdjustmentInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/adjustments")
-                .addPathSegment(request.getAdjustmentId())
-                .build();
+                .addPathSegment(request.getAdjustmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -159,10 +167,14 @@ public SquareClientHttpResponse<BatchChangeInventoryResponse> deprecatedBatchCha
      */
     public SquareClientHttpResponse<BatchChangeInventoryResponse> deprecatedBatchChange(
             BatchChangeInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-change")
-                .build();
+                .addPathSegments("v2/inventory/batch-change");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -171,7 +183,7 @@ public SquareClientHttpResponse<BatchChangeInventoryResponse> deprecatedBatchCha
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -231,10 +243,14 @@ public SquareClientHttpResponse<BatchGetInventoryChangesResponse> deprecatedBatc
      */
     public SquareClientHttpResponse<BatchGetInventoryChangesResponse> deprecatedBatchGetChanges(
             BatchRetrieveInventoryChangesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-retrieve-changes")
-                .build();
+                .addPathSegments("v2/inventory/batch-retrieve-changes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -243,7 +259,7 @@ public SquareClientHttpResponse<BatchGetInventoryChangesResponse> deprecatedBatc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -301,10 +317,14 @@ public SquareClientHttpResponse<BatchGetInventoryCountsResponse> deprecatedBatch
      */
     public SquareClientHttpResponse<BatchGetInventoryCountsResponse> deprecatedBatchGetCounts(
             BatchGetInventoryCountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/batch-retrieve-counts")
-                .build();
+                .addPathSegments("v2/inventory/batch-retrieve-counts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -313,7 +333,7 @@ public SquareClientHttpResponse<BatchGetInventoryCountsResponse> deprecatedBatch
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -358,10 +378,14 @@ public SquareClientHttpResponse<BatchChangeInventoryResponse> batchCreateChanges
      */
     public SquareClientHttpResponse<BatchChangeInventoryResponse> batchCreateChanges(
             BatchChangeInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/changes/batch-create")
-                .build();
+                .addPathSegments("v2/inventory/changes/batch-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -370,7 +394,7 @@ public SquareClientHttpResponse<BatchChangeInventoryResponse> batchCreateChanges
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -444,10 +468,14 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryChange>> batchGetCha
      */
     public SquareClientHttpResponse<SyncPagingIterable<InventoryChange>> batchGetChanges(
             BatchRetrieveInventoryChangesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/changes/batch-retrieve")
-                .build();
+                .addPathSegments("v2/inventory/changes/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -456,7 +484,7 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryChange>> batchGetCha
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -552,10 +580,14 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryCount>> batchGetCoun
      */
     public SquareClientHttpResponse<SyncPagingIterable<InventoryCount>> batchGetCounts(
             BatchGetInventoryCountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/inventory/counts/batch-retrieve")
-                .build();
+                .addPathSegments("v2/inventory/counts/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -564,7 +596,7 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryCount>> batchGetCoun
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -616,13 +648,17 @@ public SquareClientHttpResponse<GetInventoryPhysicalCountResponse> deprecatedGet
      */
     public SquareClientHttpResponse<GetInventoryPhysicalCountResponse> deprecatedGetPhysicalCount(
             DeprecatedGetPhysicalCountInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/physical-count")
-                .addPathSegment(request.getPhysicalCountId())
-                .build();
+                .addPathSegment(request.getPhysicalCountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -663,13 +699,17 @@ public SquareClientHttpResponse<GetInventoryPhysicalCountResponse> getPhysicalCo
      */
     public SquareClientHttpResponse<GetInventoryPhysicalCountResponse> getPhysicalCount(
             GetPhysicalCountInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/physical-counts")
-                .addPathSegment(request.getPhysicalCountId())
-                .build();
+                .addPathSegment(request.getPhysicalCountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -709,13 +749,17 @@ public SquareClientHttpResponse<GetInventoryTransferResponse> getTransfer(GetTra
      */
     public SquareClientHttpResponse<GetInventoryTransferResponse> getTransfer(
             GetTransferInventoryRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/inventory/transfers")
-                .addPathSegment(request.getTransferId())
-                .build();
+                .addPathSegment(request.getTransferId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -770,6 +814,11 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryCount>> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -850,6 +899,11 @@ public SquareClientHttpResponse<SyncPagingIterable<InventoryChange>> changes(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/RawInvoicesClient.java b/src/main/java/com/squareup/square/RawInvoicesClient.java
index 39fe8579..d884aeed 100644
--- a/src/main/java/com/squareup/square/RawInvoicesClient.java
+++ b/src/main/java/com/squareup/square/RawInvoicesClient.java
@@ -84,6 +84,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Invoice>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -138,10 +143,14 @@ public SquareClientHttpResponse<CreateInvoiceResponse> create(CreateInvoiceReque
      */
     public SquareClientHttpResponse<CreateInvoiceResponse> create(
             CreateInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/invoices")
-                .build();
+                .addPathSegments("v2/invoices");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -150,7 +159,7 @@ public SquareClientHttpResponse<CreateInvoiceResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -197,10 +206,14 @@ public SquareClientHttpResponse<SearchInvoicesResponse> search(SearchInvoicesReq
      */
     public SquareClientHttpResponse<SearchInvoicesResponse> search(
             SearchInvoicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/invoices/search")
-                .build();
+                .addPathSegments("v2/invoices/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -209,7 +222,7 @@ public SquareClientHttpResponse<SearchInvoicesResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -246,13 +259,17 @@ public SquareClientHttpResponse<GetInvoiceResponse> get(GetInvoicesRequest reque
      * Retrieves an invoice by invoice ID.
      */
     public SquareClientHttpResponse<GetInvoiceResponse> get(GetInvoicesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
-                .addPathSegment(request.getInvoiceId())
-                .build();
+                .addPathSegment(request.getInvoiceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -294,11 +311,15 @@ public SquareClientHttpResponse<UpdateInvoiceResponse> update(UpdateInvoiceReque
      */
     public SquareClientHttpResponse<UpdateInvoiceResponse> update(
             UpdateInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
-                .addPathSegment(request.getInvoiceId())
-                .build();
+                .addPathSegment(request.getInvoiceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -307,7 +328,7 @@ public SquareClientHttpResponse<UpdateInvoiceResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -356,6 +377,11 @@ public SquareClientHttpResponse<DeleteInvoiceResponse> delete(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
@@ -404,12 +430,16 @@ public SquareClientHttpResponse<CreateInvoiceAttachmentResponse> createInvoiceAt
      */
     public SquareClientHttpResponse<CreateInvoiceAttachmentResponse> createInvoiceAttachment(
             CreateInvoiceAttachmentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("attachments")
-                .build();
+                .addPathSegments("attachments");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -432,7 +462,7 @@ public SquareClientHttpResponse<CreateInvoiceAttachmentResponse> createInvoiceAt
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -472,15 +502,19 @@ public SquareClientHttpResponse<DeleteInvoiceAttachmentResponse> deleteInvoiceAt
      */
     public SquareClientHttpResponse<DeleteInvoiceAttachmentResponse> deleteInvoiceAttachment(
             DeleteInvoiceAttachmentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
                 .addPathSegments("attachments")
-                .addPathSegment(request.getAttachmentId())
-                .build();
+                .addPathSegment(request.getAttachmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -521,12 +555,16 @@ public SquareClientHttpResponse<CancelInvoiceResponse> cancel(CancelInvoiceReque
      */
     public SquareClientHttpResponse<CancelInvoiceResponse> cancel(
             CancelInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -535,7 +573,7 @@ public SquareClientHttpResponse<CancelInvoiceResponse> cancel(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -592,12 +630,16 @@ public SquareClientHttpResponse<PublishInvoiceResponse> publish(PublishInvoiceRe
      */
     public SquareClientHttpResponse<PublishInvoiceResponse> publish(
             PublishInvoiceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/invoices")
                 .addPathSegment(request.getInvoiceId())
-                .addPathSegments("publish")
-                .build();
+                .addPathSegments("publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -606,7 +648,7 @@ public SquareClientHttpResponse<PublishInvoiceResponse> publish(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawLaborClient.java b/src/main/java/com/squareup/square/RawLaborClient.java
index 9ef72a5d..be17198b 100644
--- a/src/main/java/com/squareup/square/RawLaborClient.java
+++ b/src/main/java/com/squareup/square/RawLaborClient.java
@@ -78,10 +78,14 @@ public SquareClientHttpResponse<CreateScheduledShiftResponse> createScheduledShi
      */
     public SquareClientHttpResponse<CreateScheduledShiftResponse> createScheduledShift(
             CreateScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -90,7 +94,7 @@ public SquareClientHttpResponse<CreateScheduledShiftResponse> createScheduledShi
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -137,10 +141,14 @@ public SquareClientHttpResponse<BulkPublishScheduledShiftsResponse> bulkPublishS
      */
     public SquareClientHttpResponse<BulkPublishScheduledShiftsResponse> bulkPublishScheduledShifts(
             BulkPublishScheduledShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts/bulk-publish")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts/bulk-publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -149,7 +157,7 @@ public SquareClientHttpResponse<BulkPublishScheduledShiftsResponse> bulkPublishS
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -208,10 +216,14 @@ public SquareClientHttpResponse<SearchScheduledShiftsResponse> searchScheduledSh
      */
     public SquareClientHttpResponse<SearchScheduledShiftsResponse> searchScheduledShifts(
             SearchScheduledShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/scheduled-shifts/search")
-                .build();
+                .addPathSegments("v2/labor/scheduled-shifts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -220,7 +232,7 @@ public SquareClientHttpResponse<SearchScheduledShiftsResponse> searchScheduledSh
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -259,13 +271,17 @@ public SquareClientHttpResponse<RetrieveScheduledShiftResponse> retrieveSchedule
      */
     public SquareClientHttpResponse<RetrieveScheduledShiftResponse> retrieveScheduledShift(
             RetrieveScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -323,11 +339,15 @@ public SquareClientHttpResponse<UpdateScheduledShiftResponse> updateScheduledShi
      */
     public SquareClientHttpResponse<UpdateScheduledShiftResponse> updateScheduledShift(
             UpdateScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -336,7 +356,7 @@ public SquareClientHttpResponse<UpdateScheduledShiftResponse> updateScheduledShi
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -377,12 +397,16 @@ public SquareClientHttpResponse<PublishScheduledShiftResponse> publishScheduledS
      */
     public SquareClientHttpResponse<PublishScheduledShiftResponse> publishScheduledShift(
             PublishScheduledShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/scheduled-shifts")
                 .addPathSegment(request.getId())
-                .addPathSegments("publish")
-                .build();
+                .addPathSegments("publish");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -391,7 +415,7 @@ public SquareClientHttpResponse<PublishScheduledShiftResponse> publishScheduledS
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -465,10 +489,14 @@ public SquareClientHttpResponse<CreateTimecardResponse> createTimecard(CreateTim
      */
     public SquareClientHttpResponse<CreateTimecardResponse> createTimecard(
             CreateTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/timecards")
-                .build();
+                .addPathSegments("v2/labor/timecards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -477,7 +505,7 @@ public SquareClientHttpResponse<CreateTimecardResponse> createTimecard(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -593,10 +621,14 @@ public SquareClientHttpResponse<SearchTimecardsResponse> searchTimecards(SearchT
      */
     public SquareClientHttpResponse<SearchTimecardsResponse> searchTimecards(
             SearchTimecardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/timecards/search")
-                .build();
+                .addPathSegments("v2/labor/timecards/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -605,7 +637,7 @@ public SquareClientHttpResponse<SearchTimecardsResponse> searchTimecards(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -643,13 +675,17 @@ public SquareClientHttpResponse<RetrieveTimecardResponse> retrieveTimecard(Retri
      */
     public SquareClientHttpResponse<RetrieveTimecardResponse> retrieveTimecard(
             RetrieveTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -694,11 +730,15 @@ public SquareClientHttpResponse<UpdateTimecardResponse> updateTimecard(UpdateTim
      */
     public SquareClientHttpResponse<UpdateTimecardResponse> updateTimecard(
             UpdateTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -707,7 +747,7 @@ public SquareClientHttpResponse<UpdateTimecardResponse> updateTimecard(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -745,13 +785,17 @@ public SquareClientHttpResponse<DeleteTimecardResponse> deleteTimecard(DeleteTim
      */
     public SquareClientHttpResponse<DeleteTimecardResponse> deleteTimecard(
             DeleteTimecardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/timecards")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawLocationsClient.java b/src/main/java/com/squareup/square/RawLocationsClient.java
index 3368821b..1c5b66d8 100644
--- a/src/main/java/com/squareup/square/RawLocationsClient.java
+++ b/src/main/java/com/squareup/square/RawLocationsClient.java
@@ -49,12 +49,16 @@ public SquareClientHttpResponse<ListLocationsResponse> list() {
      * including those with an inactive status. Locations are listed alphabetically by <code>name</code>.
      */
     public SquareClientHttpResponse<ListLocationsResponse> list(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations")
-                .build();
+                .addPathSegments("v2/locations");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -128,10 +132,14 @@ public SquareClientHttpResponse<CreateLocationResponse> create(CreateLocationReq
      */
     public SquareClientHttpResponse<CreateLocationResponse> create(
             CreateLocationRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations")
-                .build();
+                .addPathSegments("v2/locations");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -140,7 +148,7 @@ public SquareClientHttpResponse<CreateLocationResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -180,13 +188,17 @@ public SquareClientHttpResponse<GetLocationResponse> get(GetLocationsRequest req
      */
     public SquareClientHttpResponse<GetLocationResponse> get(
             GetLocationsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -222,11 +234,15 @@ public SquareClientHttpResponse<UpdateLocationResponse> update(UpdateLocationReq
      */
     public SquareClientHttpResponse<UpdateLocationResponse> update(
             UpdateLocationRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
-                .addPathSegment(request.getLocationId())
-                .build();
+                .addPathSegment(request.getLocationId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -235,7 +251,7 @@ public SquareClientHttpResponse<UpdateLocationResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -281,12 +297,16 @@ public SquareClientHttpResponse<CreateCheckoutResponse> checkouts(CreateCheckout
      */
     public SquareClientHttpResponse<CreateCheckoutResponse> checkouts(
             CreateCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
-                .addPathSegments("checkouts")
-                .build();
+                .addPathSegments("checkouts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -295,7 +315,7 @@ public SquareClientHttpResponse<CreateCheckoutResponse> checkouts(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawLoyaltyClient.java b/src/main/java/com/squareup/square/RawLoyaltyClient.java
index c140cbef..6ab18dbc 100644
--- a/src/main/java/com/squareup/square/RawLoyaltyClient.java
+++ b/src/main/java/com/squareup/square/RawLoyaltyClient.java
@@ -75,10 +75,14 @@ public SquareClientHttpResponse<SearchLoyaltyEventsResponse> searchEvents(Search
      */
     public SquareClientHttpResponse<SearchLoyaltyEventsResponse> searchEvents(
             SearchLoyaltyEventsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/events/search")
-                .build();
+                .addPathSegments("v2/loyalty/events/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -87,7 +91,7 @@ public SquareClientHttpResponse<SearchLoyaltyEventsResponse> searchEvents(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawMerchantsClient.java b/src/main/java/com/squareup/square/RawMerchantsClient.java
index b3f0f61a..f1bccb95 100644
--- a/src/main/java/com/squareup/square/RawMerchantsClient.java
+++ b/src/main/java/com/squareup/square/RawMerchantsClient.java
@@ -95,6 +95,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Merchant>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -143,13 +148,17 @@ public SquareClientHttpResponse<GetMerchantResponse> get(GetMerchantsRequest req
      */
     public SquareClientHttpResponse<GetMerchantResponse> get(
             GetMerchantsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
-                .addPathSegment(request.getMerchantId())
-                .build();
+                .addPathSegment(request.getMerchantId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawOAuthClient.java b/src/main/java/com/squareup/square/RawOAuthClient.java
index ffe99ed9..1f235e1f 100644
--- a/src/main/java/com/squareup/square/RawOAuthClient.java
+++ b/src/main/java/com/squareup/square/RawOAuthClient.java
@@ -90,10 +90,14 @@ public SquareClientHttpResponse<RevokeTokenResponse> revokeToken(RevokeTokenRequ
      */
     public SquareClientHttpResponse<RevokeTokenResponse> revokeToken(
             RevokeTokenRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/revoke")
-                .build();
+                .addPathSegments("oauth2/revoke");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -102,7 +106,7 @@ public SquareClientHttpResponse<RevokeTokenResponse> revokeToken(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -179,10 +183,14 @@ public SquareClientHttpResponse<ObtainTokenResponse> obtainToken(ObtainTokenRequ
      */
     public SquareClientHttpResponse<ObtainTokenResponse> obtainToken(
             ObtainTokenRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/token")
-                .build();
+                .addPathSegments("oauth2/token");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -191,7 +199,7 @@ public SquareClientHttpResponse<ObtainTokenResponse> obtainToken(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -241,12 +249,16 @@ public SquareClientHttpResponse<RetrieveTokenStatusResponse> retrieveTokenStatus
      * <p>If the access token is expired or not a valid access token, the endpoint returns an <code>UNAUTHORIZED</code> error.</p>
      */
     public SquareClientHttpResponse<RetrieveTokenStatusResponse> retrieveTokenStatus(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/token/status")
-                .build();
+                .addPathSegments("oauth2/token/status");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -276,12 +288,16 @@ public SquareClientHttpResponse<Void> authorize() {
     }
 
     public SquareClientHttpResponse<Void> authorize(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("oauth2/authorize")
-                .build();
+                .addPathSegments("oauth2/authorize");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .build();
diff --git a/src/main/java/com/squareup/square/RawOrdersClient.java b/src/main/java/com/squareup/square/RawOrdersClient.java
index f511bd11..cf6c11ab 100644
--- a/src/main/java/com/squareup/square/RawOrdersClient.java
+++ b/src/main/java/com/squareup/square/RawOrdersClient.java
@@ -85,10 +85,14 @@ public SquareClientHttpResponse<CreateOrderResponse> create(CreateOrderRequest r
      */
     public SquareClientHttpResponse<CreateOrderResponse> create(
             CreateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders")
-                .build();
+                .addPathSegments("v2/orders");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -97,7 +101,7 @@ public SquareClientHttpResponse<CreateOrderResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -136,10 +140,14 @@ public SquareClientHttpResponse<BatchGetOrdersResponse> batchGet(BatchGetOrdersR
      */
     public SquareClientHttpResponse<BatchGetOrdersResponse> batchGet(
             BatchGetOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/batch-retrieve")
-                .build();
+                .addPathSegments("v2/orders/batch-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -148,7 +156,7 @@ public SquareClientHttpResponse<BatchGetOrdersResponse> batchGet(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -186,10 +194,14 @@ public SquareClientHttpResponse<CalculateOrderResponse> calculate(CalculateOrder
      */
     public SquareClientHttpResponse<CalculateOrderResponse> calculate(
             CalculateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/calculate")
-                .build();
+                .addPathSegments("v2/orders/calculate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -198,7 +210,7 @@ public SquareClientHttpResponse<CalculateOrderResponse> calculate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -238,10 +250,14 @@ public SquareClientHttpResponse<CloneOrderResponse> clone(CloneOrderRequest requ
      */
     public SquareClientHttpResponse<CloneOrderResponse> clone(
             CloneOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/clone")
-                .build();
+                .addPathSegments("v2/orders/clone");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -250,7 +266,7 @@ public SquareClientHttpResponse<CloneOrderResponse> clone(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -353,10 +369,14 @@ public SquareClientHttpResponse<SearchOrdersResponse> search(SearchOrdersRequest
      */
     public SquareClientHttpResponse<SearchOrdersResponse> search(
             SearchOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/search")
-                .build();
+                .addPathSegments("v2/orders/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -365,7 +385,7 @@ public SquareClientHttpResponse<SearchOrdersResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -401,13 +421,17 @@ public SquareClientHttpResponse<GetOrderResponse> get(GetOrdersRequest request)
      * Retrieves an <a href="entity:Order">Order</a> by ID.
      */
     public SquareClientHttpResponse<GetOrderResponse> get(GetOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -469,11 +493,15 @@ public SquareClientHttpResponse<UpdateOrderResponse> update(UpdateOrderRequest r
      */
     public SquareClientHttpResponse<UpdateOrderResponse> update(
             UpdateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -482,7 +510,7 @@ public SquareClientHttpResponse<UpdateOrderResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -542,12 +570,16 @@ public SquareClientHttpResponse<PayOrderResponse> pay(PayOrderRequest request) {
      * </ul>
      */
     public SquareClientHttpResponse<PayOrderResponse> pay(PayOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
-                .addPathSegments("pay")
-                .build();
+                .addPathSegments("pay");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -556,7 +588,7 @@ public SquareClientHttpResponse<PayOrderResponse> pay(PayOrderRequest request, R
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawPaymentsClient.java b/src/main/java/com/squareup/square/RawPaymentsClient.java
index 92583f6b..904e90d6 100644
--- a/src/main/java/com/squareup/square/RawPaymentsClient.java
+++ b/src/main/java/com/squareup/square/RawPaymentsClient.java
@@ -154,6 +154,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Payment>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_field", request.getSortField().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -214,10 +219,14 @@ public SquareClientHttpResponse<CreatePaymentResponse> create(CreatePaymentReque
      */
     public SquareClientHttpResponse<CreatePaymentResponse> create(
             CreatePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/payments")
-                .build();
+                .addPathSegments("v2/payments");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -226,7 +235,7 @@ public SquareClientHttpResponse<CreatePaymentResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -280,10 +289,14 @@ public SquareClientHttpResponse<CancelPaymentByIdempotencyKeyResponse> cancelByI
      */
     public SquareClientHttpResponse<CancelPaymentByIdempotencyKeyResponse> cancelByIdempotencyKey(
             CancelPaymentByIdempotencyKeyRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/payments/cancel")
-                .build();
+                .addPathSegments("v2/payments/cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -292,7 +305,7 @@ public SquareClientHttpResponse<CancelPaymentByIdempotencyKeyResponse> cancelByI
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -330,13 +343,17 @@ public SquareClientHttpResponse<GetPaymentResponse> get(GetPaymentsRequest reque
      * Retrieves details for a specific payment.
      */
     public SquareClientHttpResponse<GetPaymentResponse> get(GetPaymentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
-                .addPathSegment(request.getPaymentId())
-                .build();
+                .addPathSegment(request.getPaymentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -374,11 +391,15 @@ public SquareClientHttpResponse<UpdatePaymentResponse> update(UpdatePaymentReque
      */
     public SquareClientHttpResponse<UpdatePaymentResponse> update(
             UpdatePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
-                .addPathSegment(request.getPaymentId())
-                .build();
+                .addPathSegment(request.getPaymentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -387,7 +408,7 @@ public SquareClientHttpResponse<UpdatePaymentResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -426,14 +447,18 @@ public SquareClientHttpResponse<CancelPaymentResponse> cancel(CancelPaymentsRequ
      */
     public SquareClientHttpResponse<CancelPaymentResponse> cancel(
             CancelPaymentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
                 .addPathSegment(request.getPaymentId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -473,12 +498,16 @@ public SquareClientHttpResponse<CompletePaymentResponse> complete(CompletePaymen
      */
     public SquareClientHttpResponse<CompletePaymentResponse> complete(
             CompletePaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payments")
                 .addPathSegment(request.getPaymentId())
-                .addPathSegments("complete")
-                .build();
+                .addPathSegments("complete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -487,7 +516,7 @@ public SquareClientHttpResponse<CompletePaymentResponse> complete(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawPayoutsClient.java b/src/main/java/com/squareup/square/RawPayoutsClient.java
index eb51971d..cd5f017d 100644
--- a/src/main/java/com/squareup/square/RawPayoutsClient.java
+++ b/src/main/java/com/squareup/square/RawPayoutsClient.java
@@ -102,6 +102,11 @@ public SquareClientHttpResponse<SyncPagingIterable<Payout>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -151,13 +156,17 @@ public SquareClientHttpResponse<GetPayoutResponse> get(GetPayoutsRequest request
      * To call this endpoint, set <code>PAYOUTS_READ</code> for the OAuth scope.
      */
     public SquareClientHttpResponse<GetPayoutResponse> get(GetPayoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/payouts")
-                .addPathSegment(request.getPayoutId())
-                .build();
+                .addPathSegment(request.getPayoutId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -212,6 +221,11 @@ public SquareClientHttpResponse<SyncPagingIterable<PayoutEntry>> listEntries(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/RawRefundsClient.java b/src/main/java/com/squareup/square/RawRefundsClient.java
index 43997ed3..a7c2ae66 100644
--- a/src/main/java/com/squareup/square/RawRefundsClient.java
+++ b/src/main/java/com/squareup/square/RawRefundsClient.java
@@ -130,6 +130,11 @@ public SquareClientHttpResponse<SyncPagingIterable<PaymentRefund>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_field", request.getSortField().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -185,10 +190,14 @@ public SquareClientHttpResponse<RefundPaymentResponse> refundPayment(RefundPayme
      */
     public SquareClientHttpResponse<RefundPaymentResponse> refundPayment(
             RefundPaymentRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/refunds")
-                .build();
+                .addPathSegments("v2/refunds");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -197,7 +206,7 @@ public SquareClientHttpResponse<RefundPaymentResponse> refundPayment(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -234,13 +243,17 @@ public SquareClientHttpResponse<GetPaymentRefundResponse> get(GetRefundsRequest
      */
     public SquareClientHttpResponse<GetPaymentRefundResponse> get(
             GetRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/refunds")
-                .addPathSegment(request.getRefundId())
-                .build();
+                .addPathSegment(request.getRefundId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawSitesClient.java b/src/main/java/com/squareup/square/RawSitesClient.java
index fb361c27..b24624a0 100644
--- a/src/main/java/com/squareup/square/RawSitesClient.java
+++ b/src/main/java/com/squareup/square/RawSitesClient.java
@@ -38,12 +38,16 @@ public SquareClientHttpResponse<ListSitesResponse> list() {
      * <p><strong>Note:</strong> Square Online APIs are publicly available as part of an early access program. For more information, see <a href="https://developer.squareup.com/docs/online-api#early-access-program-for-square-online-apis">Early access program for Square Online APIs</a>.</p>
      */
     public SquareClientHttpResponse<ListSitesResponse> list(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/sites")
-                .build();
+                .addPathSegments("v2/sites");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
diff --git a/src/main/java/com/squareup/square/RawSnippetsClient.java b/src/main/java/com/squareup/square/RawSnippetsClient.java
index f4d3f8b4..84c7d228 100644
--- a/src/main/java/com/squareup/square/RawSnippetsClient.java
+++ b/src/main/java/com/squareup/square/RawSnippetsClient.java
@@ -48,14 +48,18 @@ public SquareClientHttpResponse<GetSnippetResponse> get(GetSnippetsRequest reque
      * <p><strong>Note:</strong> Square Online APIs are publicly available as part of an early access program. For more information, see <a href="https://developer.squareup.com/docs/online-api#early-access-program-for-square-online-apis">Early access program for Square Online APIs</a>.</p>
      */
     public SquareClientHttpResponse<GetSnippetResponse> get(GetSnippetsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -97,12 +101,16 @@ public SquareClientHttpResponse<UpsertSnippetResponse> upsert(UpsertSnippetReque
      */
     public SquareClientHttpResponse<UpsertSnippetResponse> upsert(
             UpsertSnippetRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -111,7 +119,7 @@ public SquareClientHttpResponse<UpsertSnippetResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -152,14 +160,18 @@ public SquareClientHttpResponse<DeleteSnippetResponse> delete(DeleteSnippetsRequ
      */
     public SquareClientHttpResponse<DeleteSnippetResponse> delete(
             DeleteSnippetsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/sites")
                 .addPathSegment(request.getSiteId())
-                .addPathSegments("snippet")
-                .build();
+                .addPathSegments("snippet");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawSubscriptionsClient.java b/src/main/java/com/squareup/square/RawSubscriptionsClient.java
index ac7a60bf..c4ba65fb 100644
--- a/src/main/java/com/squareup/square/RawSubscriptionsClient.java
+++ b/src/main/java/com/squareup/square/RawSubscriptionsClient.java
@@ -79,10 +79,14 @@ public SquareClientHttpResponse<CreateSubscriptionResponse> create(CreateSubscri
      */
     public SquareClientHttpResponse<CreateSubscriptionResponse> create(
             CreateSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions")
-                .build();
+                .addPathSegments("v2/subscriptions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -91,7 +95,7 @@ public SquareClientHttpResponse<CreateSubscriptionResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -131,10 +135,14 @@ public SquareClientHttpResponse<BulkSwapPlanResponse> bulkSwapPlan(BulkSwapPlanR
      */
     public SquareClientHttpResponse<BulkSwapPlanResponse> bulkSwapPlan(
             BulkSwapPlanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions/bulk-swap-plan")
-                .build();
+                .addPathSegments("v2/subscriptions/bulk-swap-plan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -143,7 +151,7 @@ public SquareClientHttpResponse<BulkSwapPlanResponse> bulkSwapPlan(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -238,10 +246,14 @@ public SquareClientHttpResponse<SearchSubscriptionsResponse> search(SearchSubscr
      */
     public SquareClientHttpResponse<SearchSubscriptionsResponse> search(
             SearchSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/subscriptions/search")
-                .build();
+                .addPathSegments("v2/subscriptions/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -250,7 +262,7 @@ public SquareClientHttpResponse<SearchSubscriptionsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -296,6 +308,11 @@ public SquareClientHttpResponse<GetSubscriptionResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "include", request.getInclude().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -336,11 +353,15 @@ public SquareClientHttpResponse<UpdateSubscriptionResponse> update(UpdateSubscri
      */
     public SquareClientHttpResponse<UpdateSubscriptionResponse> update(
             UpdateSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -349,7 +370,7 @@ public SquareClientHttpResponse<UpdateSubscriptionResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -388,15 +409,19 @@ public SquareClientHttpResponse<DeleteSubscriptionActionResponse> deleteAction(
      */
     public SquareClientHttpResponse<DeleteSubscriptionActionResponse> deleteAction(
             DeleteActionSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
                 .addPathSegments("actions")
-                .addPathSegment(request.getActionId())
-                .build();
+                .addPathSegment(request.getActionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -436,12 +461,16 @@ public SquareClientHttpResponse<ChangeBillingAnchorDateResponse> changeBillingAn
      */
     public SquareClientHttpResponse<ChangeBillingAnchorDateResponse> changeBillingAnchorDate(
             ChangeBillingAnchorDateRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("billing-anchor")
-                .build();
+                .addPathSegments("billing-anchor");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -450,7 +479,7 @@ public SquareClientHttpResponse<ChangeBillingAnchorDateResponse> changeBillingAn
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -492,14 +521,18 @@ public SquareClientHttpResponse<CancelSubscriptionResponse> cancel(CancelSubscri
      */
     public SquareClientHttpResponse<CancelSubscriptionResponse> cancel(
             CancelSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -550,6 +583,11 @@ public SquareClientHttpResponse<SyncPagingIterable<SubscriptionEvent>> listEvent
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -600,12 +638,16 @@ public SquareClientHttpResponse<PauseSubscriptionResponse> pause(PauseSubscripti
      */
     public SquareClientHttpResponse<PauseSubscriptionResponse> pause(
             PauseSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("pause")
-                .build();
+                .addPathSegments("pause");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -614,7 +656,7 @@ public SquareClientHttpResponse<PauseSubscriptionResponse> pause(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -652,12 +694,16 @@ public SquareClientHttpResponse<ResumeSubscriptionResponse> resume(ResumeSubscri
      */
     public SquareClientHttpResponse<ResumeSubscriptionResponse> resume(
             ResumeSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("resume")
-                .build();
+                .addPathSegments("resume");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -666,7 +712,7 @@ public SquareClientHttpResponse<ResumeSubscriptionResponse> resume(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -705,12 +751,16 @@ public SquareClientHttpResponse<SwapPlanResponse> swapPlan(SwapPlanRequest reque
      * For more information, see <a href="https://developer.squareup.com/docs/subscriptions-api/swap-plan-variations">Swap Subscription Plan Variations</a>.
      */
     public SquareClientHttpResponse<SwapPlanResponse> swapPlan(SwapPlanRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("swap-plan")
-                .build();
+                .addPathSegments("swap-plan");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -719,7 +769,7 @@ public SquareClientHttpResponse<SwapPlanResponse> swapPlan(SwapPlanRequest reque
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawTeamClient.java b/src/main/java/com/squareup/square/RawTeamClient.java
index cb41cea6..e6d16a6a 100644
--- a/src/main/java/com/squareup/square/RawTeamClient.java
+++ b/src/main/java/com/squareup/square/RawTeamClient.java
@@ -68,6 +68,11 @@ public SquareClientHttpResponse<ListJobsResponse> listJobs(ListJobsRequest reque
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -107,10 +112,14 @@ public SquareClientHttpResponse<CreateJobResponse> createJob(CreateJobRequest re
      */
     public SquareClientHttpResponse<CreateJobResponse> createJob(
             CreateJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/jobs")
-                .build();
+                .addPathSegments("v2/team-members/jobs");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -119,7 +128,7 @@ public SquareClientHttpResponse<CreateJobResponse> createJob(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -156,13 +165,17 @@ public SquareClientHttpResponse<RetrieveJobResponse> retrieveJob(RetrieveJobRequ
      */
     public SquareClientHttpResponse<RetrieveJobResponse> retrieveJob(
             RetrieveJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members/jobs")
-                .addPathSegment(request.getJobId())
-                .build();
+                .addPathSegment(request.getJobId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -202,11 +215,15 @@ public SquareClientHttpResponse<UpdateJobResponse> updateJob(UpdateJobRequest re
      */
     public SquareClientHttpResponse<UpdateJobResponse> updateJob(
             UpdateJobRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members/jobs")
-                .addPathSegment(request.getJobId())
-                .build();
+                .addPathSegment(request.getJobId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -215,7 +232,7 @@ public SquareClientHttpResponse<UpdateJobResponse> updateJob(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawTeamMembersClient.java b/src/main/java/com/squareup/square/RawTeamMembersClient.java
index 5eb37132..03b43637 100644
--- a/src/main/java/com/squareup/square/RawTeamMembersClient.java
+++ b/src/main/java/com/squareup/square/RawTeamMembersClient.java
@@ -89,10 +89,14 @@ public SquareClientHttpResponse<CreateTeamMemberResponse> create(CreateTeamMembe
      */
     public SquareClientHttpResponse<CreateTeamMemberResponse> create(
             CreateTeamMemberRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members")
-                .build();
+                .addPathSegments("v2/team-members");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -101,7 +105,7 @@ public SquareClientHttpResponse<CreateTeamMemberResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -147,10 +151,14 @@ public SquareClientHttpResponse<BatchCreateTeamMembersResponse> batchCreate(Batc
      */
     public SquareClientHttpResponse<BatchCreateTeamMembersResponse> batchCreate(
             BatchCreateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/bulk-create")
-                .build();
+                .addPathSegments("v2/team-members/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -159,7 +167,7 @@ public SquareClientHttpResponse<BatchCreateTeamMembersResponse> batchCreate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -205,10 +213,14 @@ public SquareClientHttpResponse<BatchUpdateTeamMembersResponse> batchUpdate(Batc
      */
     public SquareClientHttpResponse<BatchUpdateTeamMembersResponse> batchUpdate(
             BatchUpdateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/bulk-update")
-                .build();
+                .addPathSegments("v2/team-members/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -217,7 +229,7 @@ public SquareClientHttpResponse<BatchUpdateTeamMembersResponse> batchUpdate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -277,10 +289,14 @@ public SquareClientHttpResponse<SearchTeamMembersResponse> search(SearchTeamMemb
      */
     public SquareClientHttpResponse<SearchTeamMembersResponse> search(
             SearchTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/team-members/search")
-                .build();
+                .addPathSegments("v2/team-members/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -289,7 +305,7 @@ public SquareClientHttpResponse<SearchTeamMembersResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -329,13 +345,17 @@ public SquareClientHttpResponse<GetTeamMemberResponse> get(GetTeamMembersRequest
      */
     public SquareClientHttpResponse<GetTeamMemberResponse> get(
             GetTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -373,11 +393,15 @@ public SquareClientHttpResponse<UpdateTeamMemberResponse> update(UpdateTeamMembe
      */
     public SquareClientHttpResponse<UpdateTeamMemberResponse> update(
             UpdateTeamMembersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -386,7 +410,7 @@ public SquareClientHttpResponse<UpdateTeamMemberResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawTerminalClient.java b/src/main/java/com/squareup/square/RawTerminalClient.java
index 5c641f12..626afc26 100644
--- a/src/main/java/com/squareup/square/RawTerminalClient.java
+++ b/src/main/java/com/squareup/square/RawTerminalClient.java
@@ -46,14 +46,18 @@ public SquareClientHttpResponse<DismissTerminalActionResponse> dismissTerminalAc
      */
     public SquareClientHttpResponse<DismissTerminalActionResponse> dismissTerminalAction(
             DismissTerminalActionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
                 .addPathSegment(request.getActionId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -91,14 +95,18 @@ public SquareClientHttpResponse<DismissTerminalCheckoutResponse> dismissTerminal
      */
     public SquareClientHttpResponse<DismissTerminalCheckoutResponse> dismissTerminalCheckout(
             DismissTerminalCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
                 .addPathSegment(request.getCheckoutId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -136,14 +144,18 @@ public SquareClientHttpResponse<DismissTerminalRefundResponse> dismissTerminalRe
      */
     public SquareClientHttpResponse<DismissTerminalRefundResponse> dismissTerminalRefund(
             DismissTerminalRefundRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
                 .addPathSegment(request.getTerminalRefundId())
-                .addPathSegments("dismiss")
-                .build();
+                .addPathSegments("dismiss");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/RawTransferOrdersClient.java b/src/main/java/com/squareup/square/RawTransferOrdersClient.java
index 9c6c98d9..f053711d 100644
--- a/src/main/java/com/squareup/square/RawTransferOrdersClient.java
+++ b/src/main/java/com/squareup/square/RawTransferOrdersClient.java
@@ -99,10 +99,14 @@ public SquareClientHttpResponse<CreateTransferOrderResponse> create(CreateTransf
      */
     public SquareClientHttpResponse<CreateTransferOrderResponse> create(
             CreateTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/transfer-orders")
-                .build();
+                .addPathSegments("v2/transfer-orders");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -111,7 +115,7 @@ public SquareClientHttpResponse<CreateTransferOrderResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -191,10 +195,14 @@ public SquareClientHttpResponse<SyncPagingIterable<TransferOrder>> search(Search
      */
     public SquareClientHttpResponse<SyncPagingIterable<TransferOrder>> search(
             SearchTransferOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/transfer-orders/search")
-                .build();
+                .addPathSegments("v2/transfer-orders/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -203,7 +211,7 @@ public SquareClientHttpResponse<SyncPagingIterable<TransferOrder>> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -266,13 +274,17 @@ public SquareClientHttpResponse<RetrieveTransferOrderResponse> get(GetTransferOr
      */
     public SquareClientHttpResponse<RetrieveTransferOrderResponse> get(
             GetTransferOrdersRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
-                .addPathSegment(request.getTransferOrderId())
-                .build();
+                .addPathSegment(request.getTransferOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -313,11 +325,15 @@ public SquareClientHttpResponse<UpdateTransferOrderResponse> update(UpdateTransf
      */
     public SquareClientHttpResponse<UpdateTransferOrderResponse> update(
             UpdateTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
-                .addPathSegment(request.getTransferOrderId())
-                .build();
+                .addPathSegment(request.getTransferOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -326,7 +342,7 @@ public SquareClientHttpResponse<UpdateTransferOrderResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -378,6 +394,11 @@ public SquareClientHttpResponse<DeleteTransferOrderResponse> delete(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("DELETE", null)
@@ -434,12 +455,16 @@ public SquareClientHttpResponse<CancelTransferOrderResponse> cancel(CancelTransf
      */
     public SquareClientHttpResponse<CancelTransferOrderResponse> cancel(
             CancelTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -448,7 +473,7 @@ public SquareClientHttpResponse<CancelTransferOrderResponse> cancel(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -512,12 +537,16 @@ public SquareClientHttpResponse<ReceiveTransferOrderResponse> receive(ReceiveTra
      */
     public SquareClientHttpResponse<ReceiveTransferOrderResponse> receive(
             ReceiveTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("receive")
-                .build();
+                .addPathSegments("receive");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -526,7 +555,7 @@ public SquareClientHttpResponse<ReceiveTransferOrderResponse> receive(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -574,12 +603,16 @@ public SquareClientHttpResponse<StartTransferOrderResponse> start(StartTransferO
      */
     public SquareClientHttpResponse<StartTransferOrderResponse> start(
             StartTransferOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/transfer-orders")
                 .addPathSegment(request.getTransferOrderId())
-                .addPathSegments("start")
-                .build();
+                .addPathSegments("start");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -588,7 +621,7 @@ public SquareClientHttpResponse<StartTransferOrderResponse> start(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawV1TransactionsClient.java b/src/main/java/com/squareup/square/RawV1TransactionsClient.java
index 32c8efa7..f76b8190 100644
--- a/src/main/java/com/squareup/square/RawV1TransactionsClient.java
+++ b/src/main/java/com/squareup/square/RawV1TransactionsClient.java
@@ -63,6 +63,11 @@ public SquareClientHttpResponse<List<V1Order>> v1ListOrders(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "batch_token", request.getBatchToken().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -101,15 +106,19 @@ public SquareClientHttpResponse<V1Order> v1RetrieveOrder(V1RetrieveOrderRequest
      */
     public SquareClientHttpResponse<V1Order> v1RetrieveOrder(
             V1RetrieveOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v1")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -145,13 +154,17 @@ public SquareClientHttpResponse<V1Order> v1UpdateOrder(V1UpdateOrderRequest requ
      */
     public SquareClientHttpResponse<V1Order> v1UpdateOrder(
             V1UpdateOrderRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v1")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("orders")
-                .addPathSegment(request.getOrderId())
-                .build();
+                .addPathSegment(request.getOrderId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -160,7 +173,7 @@ public SquareClientHttpResponse<V1Order> v1UpdateOrder(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/RawVendorsClient.java b/src/main/java/com/squareup/square/RawVendorsClient.java
index 56d7f4ef..abf7d763 100644
--- a/src/main/java/com/squareup/square/RawVendorsClient.java
+++ b/src/main/java/com/squareup/square/RawVendorsClient.java
@@ -53,10 +53,14 @@ public SquareClientHttpResponse<BatchCreateVendorsResponse> batchCreate(BatchCre
      */
     public SquareClientHttpResponse<BatchCreateVendorsResponse> batchCreate(
             BatchCreateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-create")
-                .build();
+                .addPathSegments("v2/vendors/bulk-create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -65,7 +69,7 @@ public SquareClientHttpResponse<BatchCreateVendorsResponse> batchCreate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -117,10 +121,14 @@ public SquareClientHttpResponse<BatchGetVendorsResponse> batchGet(BatchGetVendor
      */
     public SquareClientHttpResponse<BatchGetVendorsResponse> batchGet(
             BatchGetVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-retrieve")
-                .build();
+                .addPathSegments("v2/vendors/bulk-retrieve");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -129,7 +137,7 @@ public SquareClientHttpResponse<BatchGetVendorsResponse> batchGet(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -167,10 +175,14 @@ public SquareClientHttpResponse<BatchUpdateVendorsResponse> batchUpdate(BatchUpd
      */
     public SquareClientHttpResponse<BatchUpdateVendorsResponse> batchUpdate(
             BatchUpdateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/bulk-update")
-                .build();
+                .addPathSegments("v2/vendors/bulk-update");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -179,7 +191,7 @@ public SquareClientHttpResponse<BatchUpdateVendorsResponse> batchUpdate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -217,10 +229,14 @@ public SquareClientHttpResponse<CreateVendorResponse> create(CreateVendorRequest
      */
     public SquareClientHttpResponse<CreateVendorResponse> create(
             CreateVendorRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/create")
-                .build();
+                .addPathSegments("v2/vendors/create");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -229,7 +245,7 @@ public SquareClientHttpResponse<CreateVendorResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -280,10 +296,14 @@ public SquareClientHttpResponse<SearchVendorsResponse> search(SearchVendorsReque
      */
     public SquareClientHttpResponse<SearchVendorsResponse> search(
             SearchVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/vendors/search")
-                .build();
+                .addPathSegments("v2/vendors/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -292,7 +312,7 @@ public SquareClientHttpResponse<SearchVendorsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -328,13 +348,17 @@ public SquareClientHttpResponse<GetVendorResponse> get(GetVendorsRequest request
      * Retrieves the vendor of a specified <a href="entity:Vendor">Vendor</a> ID.
      */
     public SquareClientHttpResponse<GetVendorResponse> get(GetVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/vendors")
-                .addPathSegment(request.getVendorId())
-                .build();
+                .addPathSegment(request.getVendorId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -370,11 +394,15 @@ public SquareClientHttpResponse<UpdateVendorResponse> update(UpdateVendorsReques
      */
     public SquareClientHttpResponse<UpdateVendorResponse> update(
             UpdateVendorsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/vendors")
-                .addPathSegment(request.getVendorId())
-                .build();
+                .addPathSegment(request.getVendorId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -383,7 +411,7 @@ public SquareClientHttpResponse<UpdateVendorResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/SquareClientBuilder.java b/src/main/java/com/squareup/square/SquareClientBuilder.java
index b9e55f12..adc5469e 100644
--- a/src/main/java/com/squareup/square/SquareClientBuilder.java
+++ b/src/main/java/com/squareup/square/SquareClientBuilder.java
@@ -5,6 +5,7 @@
 
 import com.squareup.square.core.ClientOptions;
 import com.squareup.square.core.Environment;
+import com.squareup.square.core.LogConfig;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
@@ -25,6 +26,8 @@ public class SquareClientBuilder {
 
     private OkHttpClient httpClient;
 
+    private Optional<LogConfig> logging = Optional.empty();
+
     /**
      * Sets token.
      * Defaults to the SQUARE_TOKEN environment variable.
@@ -76,6 +79,14 @@ public SquareClientBuilder httpClient(OkHttpClient httpClient) {
         return this;
     }
 
+    /**
+     * Configure logging for the SDK. Silent by default — no log output unless explicitly configured.
+     */
+    public SquareClientBuilder logging(LogConfig logging) {
+        this.logging = Optional.of(logging);
+        return this;
+    }
+
     /**
      * Add a custom header to be sent with all requests.
      * For headers that need to be computed dynamically or conditionally, use the setAdditional() method override instead.
@@ -97,6 +108,7 @@ protected ClientOptions buildClientOptions() {
         setHttpClient(builder);
         setTimeouts(builder);
         setRetries(builder);
+        setLogging(builder);
         for (Map.Entry<String, String> header : this.customHeaders.entrySet()) {
             builder.addHeader(header.getKey(), header.getValue());
         }
@@ -190,6 +202,18 @@ protected void setHttpClient(ClientOptions.Builder builder) {
         }
     }
 
+    /**
+     * Sets the logging configuration for the SDK.
+     * Override this method to customize logging behavior.
+     *
+     * @param builder The ClientOptions.Builder to configure
+     */
+    protected void setLogging(ClientOptions.Builder builder) {
+        if (this.logging.isPresent()) {
+            builder.logging(this.logging.get());
+        }
+    }
+
     /**
      * Override this method to add any additional configuration to the client.
      * This method is called at the end of the configuration chain, allowing you to add
diff --git a/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributeDefinitionsClient.java
index b6ff9655..d790cdca 100644
--- a/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributeDefinitionsClient.java
@@ -95,6 +95,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -176,10 +181,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateBookingCustomAttributeDe
      */
     public CompletableFuture<SquareClientHttpResponse<CreateBookingCustomAttributeDefinitionResponse>> create(
             CreateBookingCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/bookings/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -188,7 +197,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateBookingCustomAttributeDe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -254,6 +263,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveBookingCustomAttribute
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -316,11 +330,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBookingCustomAttributeDe
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateBookingCustomAttributeDefinitionResponse>> update(
             UpdateBookingCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -329,7 +347,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBookingCustomAttributeDe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -391,13 +409,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteBookingCustomAttributeDe
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteBookingCustomAttributeDefinitionResponse>> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributesClient.java b/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributesClient.java
index eec7a770..56767d8a 100644
--- a/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/bookings/AsyncRawCustomAttributesClient.java
@@ -71,10 +71,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteBookingCustomAttribu
      */
     public CompletableFuture<SquareClientHttpResponse<BulkDeleteBookingCustomAttributesResponse>> batchDelete(
             BulkDeleteBookingCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/bookings/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -83,7 +87,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteBookingCustomAttribu
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -145,10 +149,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertBookingCustomAttribu
      */
     public CompletableFuture<SquareClientHttpResponse<BulkUpsertBookingCustomAttributesResponse>> batchUpsert(
             BulkUpsertBookingCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/bookings/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -157,7 +165,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertBookingCustomAttribu
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -232,6 +240,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -321,6 +334,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveBookingCustomAttribute
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -383,13 +401,17 @@ public CompletableFuture<SquareClientHttpResponse<UpsertBookingCustomAttributeRe
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertBookingCustomAttributeResponse>> upsert(
             UpsertBookingCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -398,7 +420,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertBookingCustomAttributeRe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -460,15 +482,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteBookingCustomAttributeRe
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteBookingCustomAttributeResponse>> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/AsyncRawLocationProfilesClient.java b/src/main/java/com/squareup/square/bookings/AsyncRawLocationProfilesClient.java
index 2db7c4a1..7631f07c 100644
--- a/src/main/java/com/squareup/square/bookings/AsyncRawLocationProfilesClient.java
+++ b/src/main/java/com/squareup/square/bookings/AsyncRawLocationProfilesClient.java
@@ -76,6 +76,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<LocationBoo
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/bookings/AsyncRawTeamMemberProfilesClient.java b/src/main/java/com/squareup/square/bookings/AsyncRawTeamMemberProfilesClient.java
index f6867ef0..215d5e6d 100644
--- a/src/main/java/com/squareup/square/bookings/AsyncRawTeamMemberProfilesClient.java
+++ b/src/main/java/com/squareup/square/bookings/AsyncRawTeamMemberProfilesClient.java
@@ -86,6 +86,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<TeamMemberB
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -157,13 +162,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTeamMemberBookingProfileRes
      */
     public CompletableFuture<SquareClientHttpResponse<GetTeamMemberBookingProfileResponse>> get(
             GetTeamMemberProfilesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/team-member-booking-profiles")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/RawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/bookings/RawCustomAttributeDefinitionsClient.java
index 6ff7c97b..9c6d085d 100644
--- a/src/main/java/com/squareup/square/bookings/RawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/bookings/RawCustomAttributeDefinitionsClient.java
@@ -89,6 +89,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttributeDefinition>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -148,10 +153,14 @@ public SquareClientHttpResponse<CreateBookingCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<CreateBookingCustomAttributeDefinitionResponse> create(
             CreateBookingCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/bookings/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -160,7 +169,7 @@ public SquareClientHttpResponse<CreateBookingCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -212,6 +221,11 @@ public SquareClientHttpResponse<RetrieveBookingCustomAttributeDefinitionResponse
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -260,11 +274,15 @@ public SquareClientHttpResponse<UpdateBookingCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<UpdateBookingCustomAttributeDefinitionResponse> update(
             UpdateBookingCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -273,7 +291,7 @@ public SquareClientHttpResponse<UpdateBookingCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -321,13 +339,17 @@ public SquareClientHttpResponse<DeleteBookingCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<DeleteBookingCustomAttributeDefinitionResponse> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/RawCustomAttributesClient.java b/src/main/java/com/squareup/square/bookings/RawCustomAttributesClient.java
index 047723d7..5aad722c 100644
--- a/src/main/java/com/squareup/square/bookings/RawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/bookings/RawCustomAttributesClient.java
@@ -66,10 +66,14 @@ public SquareClientHttpResponse<BulkDeleteBookingCustomAttributesResponse> batch
      */
     public SquareClientHttpResponse<BulkDeleteBookingCustomAttributesResponse> batchDelete(
             BulkDeleteBookingCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/bookings/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -78,7 +82,7 @@ public SquareClientHttpResponse<BulkDeleteBookingCustomAttributesResponse> batch
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -126,10 +130,14 @@ public SquareClientHttpResponse<BulkUpsertBookingCustomAttributesResponse> batch
      */
     public SquareClientHttpResponse<BulkUpsertBookingCustomAttributesResponse> batchUpsert(
             BulkUpsertBookingCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/bookings/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/bookings/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -138,7 +146,7 @@ public SquareClientHttpResponse<BulkUpsertBookingCustomAttributesResponse> batch
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -198,6 +206,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttribute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -266,6 +279,11 @@ public SquareClientHttpResponse<RetrieveBookingCustomAttributeResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -314,13 +332,17 @@ public SquareClientHttpResponse<UpsertBookingCustomAttributeResponse> upsert(
      */
     public SquareClientHttpResponse<UpsertBookingCustomAttributeResponse> upsert(
             UpsertBookingCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -329,7 +351,7 @@ public SquareClientHttpResponse<UpsertBookingCustomAttributeResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -377,15 +399,19 @@ public SquareClientHttpResponse<DeleteBookingCustomAttributeResponse> delete(
      */
     public SquareClientHttpResponse<DeleteBookingCustomAttributeResponse> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings")
                 .addPathSegment(request.getBookingId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/RawLocationProfilesClient.java b/src/main/java/com/squareup/square/bookings/RawLocationProfilesClient.java
index c7a9751b..9fa99113 100644
--- a/src/main/java/com/squareup/square/bookings/RawLocationProfilesClient.java
+++ b/src/main/java/com/squareup/square/bookings/RawLocationProfilesClient.java
@@ -70,6 +70,11 @@ public SquareClientHttpResponse<SyncPagingIterable<LocationBookingProfile>> list
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/bookings/RawTeamMemberProfilesClient.java b/src/main/java/com/squareup/square/bookings/RawTeamMemberProfilesClient.java
index 49390f16..98ceafbd 100644
--- a/src/main/java/com/squareup/square/bookings/RawTeamMemberProfilesClient.java
+++ b/src/main/java/com/squareup/square/bookings/RawTeamMemberProfilesClient.java
@@ -80,6 +80,11 @@ public SquareClientHttpResponse<SyncPagingIterable<TeamMemberBookingProfile>> li
             QueryStringMapper.addQueryParameter(
                     httpUrl, "location_id", request.getLocationId().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -130,13 +135,17 @@ public SquareClientHttpResponse<GetTeamMemberBookingProfileResponse> get(GetTeam
      */
     public SquareClientHttpResponse<GetTeamMemberBookingProfileResponse> get(
             GetTeamMemberProfilesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/bookings/team-member-booking-profiles")
-                .addPathSegment(request.getTeamMemberId())
-                .build();
+                .addPathSegment(request.getTeamMemberId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/bookings/types/BulkDeleteBookingCustomAttributesRequest.java b/src/main/java/com/squareup/square/bookings/types/BulkDeleteBookingCustomAttributesRequest.java
index d55726c9..d951cde5 100644
--- a/src/main/java/com/squareup/square/bookings/types/BulkDeleteBookingCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/BulkDeleteBookingCustomAttributesRequest.java
@@ -114,5 +114,15 @@ public Builder values(String key, BookingCustomAttributeDeleteRequest value) {
         public BulkDeleteBookingCustomAttributesRequest build() {
             return new BulkDeleteBookingCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/BulkUpsertBookingCustomAttributesRequest.java b/src/main/java/com/squareup/square/bookings/types/BulkUpsertBookingCustomAttributesRequest.java
index 9cae6c18..2409cd56 100644
--- a/src/main/java/com/squareup/square/bookings/types/BulkUpsertBookingCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/BulkUpsertBookingCustomAttributesRequest.java
@@ -114,5 +114,15 @@ public Builder values(String key, BookingCustomAttributeUpsertRequest value) {
         public BulkUpsertBookingCustomAttributesRequest build() {
             return new BulkUpsertBookingCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/CreateBookingCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/bookings/types/CreateBookingCustomAttributeDefinitionRequest.java
index dacf5593..2c266e41 100644
--- a/src/main/java/com/squareup/square/bookings/types/CreateBookingCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/CreateBookingCustomAttributeDefinitionRequest.java
@@ -139,6 +139,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         CreateBookingCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -248,5 +252,17 @@ public CreateBookingCustomAttributeDefinitionRequest build() {
             return new CreateBookingCustomAttributeDefinitionRequest(
                     customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributeDefinitionsRequest.java
index 224e1555..d10868ec 100644
--- a/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributeDefinitionsRequest.java
@@ -77,6 +77,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributeDefinitionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributeDefinitionsRequest build() {
             return new DeleteCustomAttributeDefinitionsRequest(key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributesRequest.java b/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributesRequest.java
index 058c3598..8e8891a7 100644
--- a/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/DeleteCustomAttributesRequest.java
@@ -98,6 +98,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributesRequest build() {
             return new DeleteCustomAttributesRequest(bookingId, key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/GetCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/bookings/types/GetCustomAttributeDefinitionsRequest.java
index a87b6480..133c4f1a 100644
--- a/src/main/java/com/squareup/square/bookings/types/GetCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/GetCustomAttributeDefinitionsRequest.java
@@ -109,6 +109,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributeDefinitionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the custom attribute definition, which is used for strongly consistent
          * reads to guarantee that you receive the most up-to-date data. When included in the request,
@@ -203,5 +207,17 @@ public _FinalStage version(Optional<Integer> version) {
         public GetCustomAttributeDefinitionsRequest build() {
             return new GetCustomAttributeDefinitionsRequest(key, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/GetCustomAttributesRequest.java b/src/main/java/com/squareup/square/bookings/types/GetCustomAttributesRequest.java
index 3ce2b441..ccc57687 100644
--- a/src/main/java/com/squareup/square/bookings/types/GetCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/GetCustomAttributesRequest.java
@@ -157,6 +157,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates whether to return the <a href="entity:CustomAttributeDefinition">custom attribute definition</a> in the <code>definition</code> field of
          * the custom attribute. Set this parameter to <code>true</code> to get the name and description of the custom
@@ -324,5 +328,17 @@ public _FinalStage withDefinition(Optional<Boolean> withDefinition) {
         public GetCustomAttributesRequest build() {
             return new GetCustomAttributesRequest(bookingId, key, withDefinition, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/GetTeamMemberProfilesRequest.java b/src/main/java/com/squareup/square/bookings/types/GetTeamMemberProfilesRequest.java
index 1e3c35d5..b98d2e93 100644
--- a/src/main/java/com/squareup/square/bookings/types/GetTeamMemberProfilesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/GetTeamMemberProfilesRequest.java
@@ -76,6 +76,10 @@ public interface TeamMemberIdStage {
 
     public interface _FinalStage {
         GetTeamMemberProfilesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage teamMemberId(@NotNull String teamMemberId) {
         public GetTeamMemberProfilesRequest build() {
             return new GetTeamMemberProfilesRequest(teamMemberId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/ListCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/bookings/types/ListCustomAttributeDefinitionsRequest.java
index ca680673..22ab8342 100644
--- a/src/main/java/com/squareup/square/bookings/types/ListCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/ListCustomAttributeDefinitionsRequest.java
@@ -178,5 +178,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListCustomAttributeDefinitionsRequest build() {
             return new ListCustomAttributeDefinitionsRequest(limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/ListCustomAttributesRequest.java b/src/main/java/com/squareup/square/bookings/types/ListCustomAttributesRequest.java
index a442c9ec..a48049ad 100644
--- a/src/main/java/com/squareup/square/bookings/types/ListCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/ListCustomAttributesRequest.java
@@ -156,6 +156,10 @@ public interface BookingIdStage {
     public interface _FinalStage {
         ListCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The maximum number of results to return in a single paged response. This limit is advisory.
          * The response might contain more or fewer results. The minimum value is 1 and the maximum value is 100.
@@ -356,5 +360,17 @@ public _FinalStage limit(Optional<Integer> limit) {
         public ListCustomAttributesRequest build() {
             return new ListCustomAttributesRequest(bookingId, limit, cursor, withDefinitions, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/ListLocationProfilesRequest.java b/src/main/java/com/squareup/square/bookings/types/ListLocationProfilesRequest.java
index e154a3a7..44f425f7 100644
--- a/src/main/java/com/squareup/square/bookings/types/ListLocationProfilesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/ListLocationProfilesRequest.java
@@ -169,5 +169,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListLocationProfilesRequest build() {
             return new ListLocationProfilesRequest(limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/ListTeamMemberProfilesRequest.java b/src/main/java/com/squareup/square/bookings/types/ListTeamMemberProfilesRequest.java
index 21b22981..cda58620 100644
--- a/src/main/java/com/squareup/square/bookings/types/ListTeamMemberProfilesRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/ListTeamMemberProfilesRequest.java
@@ -272,5 +272,15 @@ public Builder locationId(Nullable<String> locationId) {
         public ListTeamMemberProfilesRequest build() {
             return new ListTeamMemberProfilesRequest(bookableOnly, limit, cursor, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/UpdateBookingCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/bookings/types/UpdateBookingCustomAttributeDefinitionRequest.java
index a0944109..aa31b8d7 100644
--- a/src/main/java/com/squareup/square/bookings/types/UpdateBookingCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/UpdateBookingCustomAttributeDefinitionRequest.java
@@ -151,6 +151,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         UpdateBookingCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -274,5 +278,17 @@ public UpdateBookingCustomAttributeDefinitionRequest build() {
             return new UpdateBookingCustomAttributeDefinitionRequest(
                     key, customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/bookings/types/UpsertBookingCustomAttributeRequest.java b/src/main/java/com/squareup/square/bookings/types/UpsertBookingCustomAttributeRequest.java
index f25e5544..3feb32f4 100644
--- a/src/main/java/com/squareup/square/bookings/types/UpsertBookingCustomAttributeRequest.java
+++ b/src/main/java/com/squareup/square/bookings/types/UpsertBookingCustomAttributeRequest.java
@@ -175,6 +175,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         UpsertBookingCustomAttributeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -316,5 +320,17 @@ public UpsertBookingCustomAttributeRequest build() {
             return new UpsertBookingCustomAttributeRequest(
                     bookingId, key, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/cashdrawers/AsyncRawShiftsClient.java b/src/main/java/com/squareup/square/cashdrawers/AsyncRawShiftsClient.java
index 182c9b14..073bb4f1 100644
--- a/src/main/java/com/squareup/square/cashdrawers/AsyncRawShiftsClient.java
+++ b/src/main/java/com/squareup/square/cashdrawers/AsyncRawShiftsClient.java
@@ -81,6 +81,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CashDrawerS
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -158,6 +163,11 @@ public CompletableFuture<SquareClientHttpResponse<GetCashDrawerShiftResponse>> g
                 .addPathSegments("v2/cash-drawers/shifts")
                 .addPathSegment(request.getShiftId());
         QueryStringMapper.addQueryParameter(httpUrl, "location_id", request.getLocationId(), false);
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -225,6 +235,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CashDrawerS
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/cashdrawers/RawShiftsClient.java b/src/main/java/com/squareup/square/cashdrawers/RawShiftsClient.java
index 886a5671..fee4c7e6 100644
--- a/src/main/java/com/squareup/square/cashdrawers/RawShiftsClient.java
+++ b/src/main/java/com/squareup/square/cashdrawers/RawShiftsClient.java
@@ -75,6 +75,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CashDrawerShiftSummary>> list
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -132,6 +137,11 @@ public SquareClientHttpResponse<GetCashDrawerShiftResponse> get(
                 .addPathSegments("v2/cash-drawers/shifts")
                 .addPathSegment(request.getShiftId());
         QueryStringMapper.addQueryParameter(httpUrl, "location_id", request.getLocationId(), false);
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -185,6 +195,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CashDrawerShiftEvent>> listEv
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/cashdrawers/types/GetShiftsRequest.java b/src/main/java/com/squareup/square/cashdrawers/types/GetShiftsRequest.java
index 9ee0ed59..1fe6ddaf 100644
--- a/src/main/java/com/squareup/square/cashdrawers/types/GetShiftsRequest.java
+++ b/src/main/java/com/squareup/square/cashdrawers/types/GetShiftsRequest.java
@@ -94,6 +94,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         GetShiftsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public GetShiftsRequest build() {
             return new GetShiftsRequest(shiftId, locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/cashdrawers/types/ListEventsShiftsRequest.java b/src/main/java/com/squareup/square/cashdrawers/types/ListEventsShiftsRequest.java
index a082a15c..d44f1b91 100644
--- a/src/main/java/com/squareup/square/cashdrawers/types/ListEventsShiftsRequest.java
+++ b/src/main/java/com/squareup/square/cashdrawers/types/ListEventsShiftsRequest.java
@@ -149,6 +149,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         ListEventsShiftsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Number of resources to be returned in a page of results (200 by
          * default, 1000 max).</p>
@@ -296,5 +300,17 @@ public _FinalStage limit(Optional<Integer> limit) {
         public ListEventsShiftsRequest build() {
             return new ListEventsShiftsRequest(shiftId, locationId, limit, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/cashdrawers/types/ListShiftsRequest.java b/src/main/java/com/squareup/square/cashdrawers/types/ListShiftsRequest.java
index e9f122f7..4a221ddd 100644
--- a/src/main/java/com/squareup/square/cashdrawers/types/ListShiftsRequest.java
+++ b/src/main/java/com/squareup/square/cashdrawers/types/ListShiftsRequest.java
@@ -197,6 +197,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         ListShiftsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The order in which cash drawer shifts are listed in the response,
          * based on their opened_at field. Default value: ASC</p>
@@ -478,5 +482,17 @@ public ListShiftsRequest build() {
             return new ListShiftsRequest(
                     locationId, sortOrder, beginTime, endTime, limit, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/catalog/AsyncRawImagesClient.java b/src/main/java/com/squareup/square/catalog/AsyncRawImagesClient.java
index 49731850..6877e200 100644
--- a/src/main/java/com/squareup/square/catalog/AsyncRawImagesClient.java
+++ b/src/main/java/com/squareup/square/catalog/AsyncRawImagesClient.java
@@ -81,10 +81,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> c
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> create(
             CreateImagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -107,7 +111,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> c
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -148,16 +152,15 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
 
     public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> create(
             InputStream stream, String filename) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
         FileStream fs = new FileStream(stream, filename, null);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(null)));
         Request okhttpRequest = _requestBuilder.build();
@@ -194,16 +197,15 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
 
     public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> create(
             InputStream stream, String filename, MediaType mediaType) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
         FileStream fs = new FileStream(stream, filename, mediaType);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(null)));
         Request okhttpRequest = _requestBuilder.build();
@@ -240,16 +242,20 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
 
     public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> create(
             InputStream stream, String filename, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         FileStream fs = new FileStream(stream, filename, null);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(requestOptions)));
         Request okhttpRequest = _requestBuilder.build();
@@ -289,16 +295,20 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
 
     public CompletableFuture<SquareClientHttpResponse<CreateCatalogImageResponse>> create(
             InputStream stream, String filename, MediaType mediaType, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         FileStream fs = new FileStream(stream, filename, mediaType);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(requestOptions)));
         Request okhttpRequest = _requestBuilder.build();
@@ -352,11 +362,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCatalogImageResponse>> u
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateCatalogImageResponse>> update(
             UpdateImagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/catalog/images")
-                .addPathSegment(request.getImageId())
-                .build();
+                .addPathSegment(request.getImageId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -379,7 +393,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCatalogImageResponse>> u
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/catalog/AsyncRawObjectClient.java b/src/main/java/com/squareup/square/catalog/AsyncRawObjectClient.java
index 24891fe2..c24fe03b 100644
--- a/src/main/java/com/squareup/square/catalog/AsyncRawObjectClient.java
+++ b/src/main/java/com/squareup/square/catalog/AsyncRawObjectClient.java
@@ -57,10 +57,14 @@ public CompletableFuture<SquareClientHttpResponse<UpsertCatalogObjectResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertCatalogObjectResponse>> upsert(
             UpsertCatalogObjectRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/object")
-                .build();
+                .addPathSegments("v2/catalog/object");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -69,7 +73,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertCatalogObjectResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -155,6 +159,11 @@ public CompletableFuture<SquareClientHttpResponse<GetCatalogObjectResponse>> get
                     request.getIncludeCategoryPathToRoot().get(),
                     false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -223,13 +232,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCatalogObjectResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteCatalogObjectResponse>> delete(
             DeleteObjectRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/catalog/object")
-                .addPathSegment(request.getObjectId())
-                .build();
+                .addPathSegment(request.getObjectId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/catalog/RawImagesClient.java b/src/main/java/com/squareup/square/catalog/RawImagesClient.java
index 966bd4a1..3cc93a86 100644
--- a/src/main/java/com/squareup/square/catalog/RawImagesClient.java
+++ b/src/main/java/com/squareup/square/catalog/RawImagesClient.java
@@ -76,10 +76,14 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(CreateImagesR
      */
     public SquareClientHttpResponse<CreateCatalogImageResponse> create(
             CreateImagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -102,7 +106,7 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -128,16 +132,15 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(
     }
 
     public SquareClientHttpResponse<CreateCatalogImageResponse> create(InputStream stream, String filename) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
         FileStream fs = new FileStream(stream, filename, null);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(null)));
         Request okhttpRequest = _requestBuilder.build();
@@ -160,16 +163,15 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(InputStream s
 
     public SquareClientHttpResponse<CreateCatalogImageResponse> create(
             InputStream stream, String filename, MediaType mediaType) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
         FileStream fs = new FileStream(stream, filename, mediaType);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(null)));
         Request okhttpRequest = _requestBuilder.build();
@@ -192,16 +194,20 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(
 
     public SquareClientHttpResponse<CreateCatalogImageResponse> create(
             InputStream stream, String filename, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         FileStream fs = new FileStream(stream, filename, null);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(requestOptions)));
         Request okhttpRequest = _requestBuilder.build();
@@ -227,16 +233,20 @@ public SquareClientHttpResponse<CreateCatalogImageResponse> create(
 
     public SquareClientHttpResponse<CreateCatalogImageResponse> create(
             InputStream stream, String filename, MediaType mediaType, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/images")
-                .build();
+                .addPathSegments("v2/catalog/images");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         FileStream fs = new FileStream(stream, filename, mediaType);
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         multipartBodyBuilder.addFormDataPart("image_file", filename, fs.toRequestBody());
         RequestBody body = multipartBodyBuilder.build();
         Request.Builder _requestBuilder = new Request.Builder();
-        _requestBuilder.url(httpUrl);
+        _requestBuilder.url(httpUrl.build());
         _requestBuilder.method("POST", body);
         _requestBuilder.headers(Headers.of(this.clientOptions.headers(requestOptions)));
         Request okhttpRequest = _requestBuilder.build();
@@ -276,11 +286,15 @@ public SquareClientHttpResponse<UpdateCatalogImageResponse> update(UpdateImagesR
      */
     public SquareClientHttpResponse<UpdateCatalogImageResponse> update(
             UpdateImagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/catalog/images")
-                .addPathSegment(request.getImageId())
-                .build();
+                .addPathSegment(request.getImageId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder().setType(MultipartBody.FORM);
         try {
             if (request.getRequest().isPresent()) {
@@ -303,7 +317,7 @@ public SquareClientHttpResponse<UpdateCatalogImageResponse> update(
             throw new RuntimeException(e);
         }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", multipartBodyBuilder.build())
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/catalog/RawObjectClient.java b/src/main/java/com/squareup/square/catalog/RawObjectClient.java
index fe3cfe08..97983e25 100644
--- a/src/main/java/com/squareup/square/catalog/RawObjectClient.java
+++ b/src/main/java/com/squareup/square/catalog/RawObjectClient.java
@@ -52,10 +52,14 @@ public SquareClientHttpResponse<UpsertCatalogObjectResponse> upsert(UpsertCatalo
      */
     public SquareClientHttpResponse<UpsertCatalogObjectResponse> upsert(
             UpsertCatalogObjectRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/catalog/object")
-                .build();
+                .addPathSegments("v2/catalog/object");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -64,7 +68,7 @@ public SquareClientHttpResponse<UpsertCatalogObjectResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -136,6 +140,11 @@ public SquareClientHttpResponse<GetCatalogObjectResponse> get(
                     request.getIncludeCategoryPathToRoot().get(),
                     false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -190,13 +199,17 @@ public SquareClientHttpResponse<DeleteCatalogObjectResponse> delete(DeleteObject
      */
     public SquareClientHttpResponse<DeleteCatalogObjectResponse> delete(
             DeleteObjectRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/catalog/object")
-                .addPathSegment(request.getObjectId())
-                .build();
+                .addPathSegment(request.getObjectId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/catalog/types/CreateImagesRequest.java b/src/main/java/com/squareup/square/catalog/types/CreateImagesRequest.java
index 52b192ee..af7e6f1a 100644
--- a/src/main/java/com/squareup/square/catalog/types/CreateImagesRequest.java
+++ b/src/main/java/com/squareup/square/catalog/types/CreateImagesRequest.java
@@ -118,5 +118,15 @@ public Builder request(CreateCatalogImageRequest request) {
         public CreateImagesRequest build() {
             return new CreateImagesRequest(imageFile, request, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/catalog/types/DeleteObjectRequest.java b/src/main/java/com/squareup/square/catalog/types/DeleteObjectRequest.java
index 0d457dc7..7fe4bd5b 100644
--- a/src/main/java/com/squareup/square/catalog/types/DeleteObjectRequest.java
+++ b/src/main/java/com/squareup/square/catalog/types/DeleteObjectRequest.java
@@ -80,6 +80,10 @@ public interface ObjectIdStage {
 
     public interface _FinalStage {
         DeleteObjectRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -117,5 +121,17 @@ public _FinalStage objectId(@NotNull String objectId) {
         public DeleteObjectRequest build() {
             return new DeleteObjectRequest(objectId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/catalog/types/GetObjectRequest.java b/src/main/java/com/squareup/square/catalog/types/GetObjectRequest.java
index 14627e04..3d68db9d 100644
--- a/src/main/java/com/squareup/square/catalog/types/GetObjectRequest.java
+++ b/src/main/java/com/squareup/square/catalog/types/GetObjectRequest.java
@@ -168,6 +168,10 @@ public interface ObjectIdStage {
     public interface _FinalStage {
         GetObjectRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>If <code>true</code>, the response will include additional objects that are related to the
          * requested objects. Related objects are defined as any objects referenced by ID by the results in the <code>objects</code> field
@@ -413,5 +417,17 @@ public GetObjectRequest build() {
             return new GetObjectRequest(
                     objectId, includeRelatedObjects, catalogVersion, includeCategoryPathToRoot, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/catalog/types/UpdateImagesRequest.java b/src/main/java/com/squareup/square/catalog/types/UpdateImagesRequest.java
index 7e34226e..a3c79691 100644
--- a/src/main/java/com/squareup/square/catalog/types/UpdateImagesRequest.java
+++ b/src/main/java/com/squareup/square/catalog/types/UpdateImagesRequest.java
@@ -101,6 +101,10 @@ public interface ImageIdStage {
     public interface _FinalStage {
         UpdateImagesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         _FinalStage imageFile(Optional<File> imageFile);
 
         _FinalStage imageFile(File imageFile);
@@ -173,5 +177,17 @@ public _FinalStage imageFile(Optional<File> imageFile) {
         public UpdateImagesRequest build() {
             return new UpdateImagesRequest(imageFile, imageId, request, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/catalog/types/UpsertCatalogObjectRequest.java b/src/main/java/com/squareup/square/catalog/types/UpsertCatalogObjectRequest.java
index bc1c5f93..a260836c 100644
--- a/src/main/java/com/squareup/square/catalog/types/UpsertCatalogObjectRequest.java
+++ b/src/main/java/com/squareup/square/catalog/types/UpsertCatalogObjectRequest.java
@@ -118,6 +118,10 @@ public interface ObjectStage {
 
     public interface _FinalStage {
         UpsertCatalogObjectRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -188,5 +192,17 @@ public _FinalStage object(@NotNull CatalogObject object) {
         public UpsertCatalogObjectRequest build() {
             return new UpsertCatalogObjectRequest(idempotencyKey, object, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/checkout/AsyncRawPaymentLinksClient.java b/src/main/java/com/squareup/square/checkout/AsyncRawPaymentLinksClient.java
index aaecc94a..4eada900 100644
--- a/src/main/java/com/squareup/square/checkout/AsyncRawPaymentLinksClient.java
+++ b/src/main/java/com/squareup/square/checkout/AsyncRawPaymentLinksClient.java
@@ -87,6 +87,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<PaymentLink
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -172,10 +177,14 @@ public CompletableFuture<SquareClientHttpResponse<CreatePaymentLinkResponse>> cr
      */
     public CompletableFuture<SquareClientHttpResponse<CreatePaymentLinkResponse>> create(
             CreatePaymentLinkRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/payment-links")
-                .build();
+                .addPathSegments("v2/online-checkout/payment-links");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -184,7 +193,7 @@ public CompletableFuture<SquareClientHttpResponse<CreatePaymentLinkResponse>> cr
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -236,13 +245,17 @@ public CompletableFuture<SquareClientHttpResponse<GetPaymentLinkResponse>> get(G
      */
     public CompletableFuture<SquareClientHttpResponse<GetPaymentLinkResponse>> get(
             GetPaymentLinksRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -297,11 +310,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdatePaymentLinkResponse>> up
      */
     public CompletableFuture<SquareClientHttpResponse<UpdatePaymentLinkResponse>> update(
             UpdatePaymentLinkRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -310,7 +327,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdatePaymentLinkResponse>> up
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -363,13 +380,17 @@ public CompletableFuture<SquareClientHttpResponse<DeletePaymentLinkResponse>> de
      */
     public CompletableFuture<SquareClientHttpResponse<DeletePaymentLinkResponse>> delete(
             DeletePaymentLinksRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/checkout/RawPaymentLinksClient.java b/src/main/java/com/squareup/square/checkout/RawPaymentLinksClient.java
index 2fdb9771..e6ec494b 100644
--- a/src/main/java/com/squareup/square/checkout/RawPaymentLinksClient.java
+++ b/src/main/java/com/squareup/square/checkout/RawPaymentLinksClient.java
@@ -80,6 +80,11 @@ public SquareClientHttpResponse<SyncPagingIterable<PaymentLink>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -143,10 +148,14 @@ public SquareClientHttpResponse<CreatePaymentLinkResponse> create(CreatePaymentL
      */
     public SquareClientHttpResponse<CreatePaymentLinkResponse> create(
             CreatePaymentLinkRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/online-checkout/payment-links")
-                .build();
+                .addPathSegments("v2/online-checkout/payment-links");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -155,7 +164,7 @@ public SquareClientHttpResponse<CreatePaymentLinkResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -193,13 +202,17 @@ public SquareClientHttpResponse<GetPaymentLinkResponse> get(GetPaymentLinksReque
      */
     public SquareClientHttpResponse<GetPaymentLinkResponse> get(
             GetPaymentLinksRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -240,11 +253,15 @@ public SquareClientHttpResponse<UpdatePaymentLinkResponse> update(UpdatePaymentL
      */
     public SquareClientHttpResponse<UpdatePaymentLinkResponse> update(
             UpdatePaymentLinkRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -253,7 +270,7 @@ public SquareClientHttpResponse<UpdatePaymentLinkResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -291,13 +308,17 @@ public SquareClientHttpResponse<DeletePaymentLinkResponse> delete(DeletePaymentL
      */
     public SquareClientHttpResponse<DeletePaymentLinkResponse> delete(
             DeletePaymentLinksRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/online-checkout/payment-links")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/checkout/types/CreatePaymentLinkRequest.java b/src/main/java/com/squareup/square/checkout/types/CreatePaymentLinkRequest.java
index b9db2481..01d7d2e9 100644
--- a/src/main/java/com/squareup/square/checkout/types/CreatePaymentLinkRequest.java
+++ b/src/main/java/com/squareup/square/checkout/types/CreatePaymentLinkRequest.java
@@ -320,5 +320,15 @@ public CreatePaymentLinkRequest build() {
                     paymentNote,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/checkout/types/DeletePaymentLinksRequest.java b/src/main/java/com/squareup/square/checkout/types/DeletePaymentLinksRequest.java
index 33ca5cf5..9dd2f01b 100644
--- a/src/main/java/com/squareup/square/checkout/types/DeletePaymentLinksRequest.java
+++ b/src/main/java/com/squareup/square/checkout/types/DeletePaymentLinksRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         DeletePaymentLinksRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public DeletePaymentLinksRequest build() {
             return new DeletePaymentLinksRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/checkout/types/GetPaymentLinksRequest.java b/src/main/java/com/squareup/square/checkout/types/GetPaymentLinksRequest.java
index 9f37c7f0..5d4a8aad 100644
--- a/src/main/java/com/squareup/square/checkout/types/GetPaymentLinksRequest.java
+++ b/src/main/java/com/squareup/square/checkout/types/GetPaymentLinksRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetPaymentLinksRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetPaymentLinksRequest build() {
             return new GetPaymentLinksRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/checkout/types/ListPaymentLinksRequest.java b/src/main/java/com/squareup/square/checkout/types/ListPaymentLinksRequest.java
index d16bd7ef..70a37147 100644
--- a/src/main/java/com/squareup/square/checkout/types/ListPaymentLinksRequest.java
+++ b/src/main/java/com/squareup/square/checkout/types/ListPaymentLinksRequest.java
@@ -181,5 +181,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListPaymentLinksRequest build() {
             return new ListPaymentLinksRequest(cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/checkout/types/UpdatePaymentLinkRequest.java b/src/main/java/com/squareup/square/checkout/types/UpdatePaymentLinkRequest.java
index 71d33669..f10450c2 100644
--- a/src/main/java/com/squareup/square/checkout/types/UpdatePaymentLinkRequest.java
+++ b/src/main/java/com/squareup/square/checkout/types/UpdatePaymentLinkRequest.java
@@ -97,6 +97,10 @@ public interface PaymentLinkStage {
 
     public interface _FinalStage {
         UpdatePaymentLinkRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -147,5 +151,17 @@ public _FinalStage paymentLink(@NotNull PaymentLink paymentLink) {
         public UpdatePaymentLinkRequest build() {
             return new UpdatePaymentLinkRequest(id, paymentLink, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/core/AsyncCustomPager.java b/src/main/java/com/squareup/square/core/AsyncCustomPager.java
deleted file mode 100644
index 25daac44..00000000
--- a/src/main/java/com/squareup/square/core/AsyncCustomPager.java
+++ /dev/null
@@ -1,164 +0,0 @@
-/**
- * This file was auto-generated by Fern from our API Definition.
- */
-package com.squareup.square.core;
-
-import java.io.IOException;
-import java.util.List;
-import java.util.Optional;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.CompletionStage;
-
-/**
- * Skeleton implementation for custom asynchronous bidirectional pagination.
- *
- * THIS CLASS MUST BE IMPLEMENTED BY THE USER.
- *
- * This file is added to .fernignore and will not be regenerated.
- * Replace this skeleton implementation with your custom async pagination logic
- * that handles your API's specific pagination structure (e.g., HATEOAS links).
- *
- * Example implementation for HATEOAS-style async pagination:
- * <pre>{@code
- * public class AsyncCustomPager<T> implements BiDirectionalPage<T> {
- *     private final List<T> items;
- *     private final String nextUrl;
- *     private final String previousUrl;
- *     private final AsyncHttpClient client;
- *
- *     public AsyncCustomPager(Response<T> response, AsyncHttpClient client, ...) {
- *         this.items = response.getData();
- *         this.nextUrl = response.getLinks().getNext();
- *         this.previousUrl = response.getLinks().getPrevious();
- *         // ... store other needed context
- *     }
- *
- *     @Override
- *     public boolean hasNext() {
- *         return nextUrl != null;
- *     }
- *
- *     @Override
- *     public CompletableFuture<BiDirectionalPage<T>> nextPageAsync() {
- *         if (!hasNext()) {
- *             CompletableFuture<BiDirectionalPage<T>> future = new CompletableFuture<>();
- *             future.completeExceptionally(new NoSuchElementException("No next page available"));
- *             return future;
- *         }
- *         // Make async HTTP request to nextUrl
- *         return client.getAsync(nextUrl)
- *             .thenApply(response -> new AsyncCustomPager<>(response, client, ...));
- *     }
- *
- *     // ... implement other methods
- * }
- * }</pre>
- *
- * @param <T> The type of items in the page
- */
-public class AsyncCustomPager<T> implements BiDirectionalPage<T> {
-
-    /**
-     * Create an AsyncCustomPager from an initial response.
-     *
-     * @param initialResponse The first page response from the API
-     * @param clientOptions The client options containing HTTP client and other configuration
-     * @param requestOptions Request options for authentication, headers, etc.
-     * @return A CompletableFuture containing the new AsyncCustomPager instance
-     */
-    public static <T> CompletableFuture<AsyncCustomPager<T>> createAsync(
-            Object initialResponse, ClientOptions clientOptions, Object requestOptions) {
-        throw new UnsupportedOperationException("AsyncCustomPager must be implemented. "
-                + "Please implement this class in core/AsyncCustomPager.java to define your async pagination logic. "
-                + "This file has been added to .fernignore and will not be overwritten. "
-                + "See the class documentation for implementation examples.");
-    }
-
-    @Override
-    public boolean hasNext() {
-        throw new UnsupportedOperationException("AsyncCustomPager.hasNext() must be implemented. "
-                + "This method should return true if a next page is available.");
-    }
-
-    @Override
-    public boolean hasPrevious() {
-        throw new UnsupportedOperationException("AsyncCustomPager.hasPrevious() must be implemented. "
-                + "This method should return true if a previous page is available.");
-    }
-
-    /**
-     * Asynchronously fetch the next page.
-     *
-     * @return A CompletableFuture that completes with the next page
-     * @throws java.util.NoSuchElementException if no next page exists (wrapped in CompletableFuture)
-     */
-    public CompletableFuture<BiDirectionalPage<T>> nextPageAsync() {
-        CompletableFuture<BiDirectionalPage<T>> future = new CompletableFuture<>();
-        future.completeExceptionally(
-                new UnsupportedOperationException("AsyncCustomPager.nextPageAsync() must be implemented. "
-                        + "This method should asynchronously fetch and return the next page of results."));
-        return future;
-    }
-
-    /**
-     * Asynchronously fetch the previous page.
-     *
-     * @return A CompletableFuture that completes with the previous page
-     * @throws java.util.NoSuchElementException if no previous page exists (wrapped in CompletableFuture)
-     */
-    public CompletableFuture<BiDirectionalPage<T>> previousPageAsync() {
-        CompletableFuture<BiDirectionalPage<T>> future = new CompletableFuture<>();
-        future.completeExceptionally(
-                new UnsupportedOperationException("AsyncCustomPager.previousPageAsync() must be implemented. "
-                        + "This method should asynchronously fetch and return the previous page of results."));
-        return future;
-    }
-
-    @Override
-    public BiDirectionalPage<T> nextPage() throws IOException {
-        throw new UnsupportedOperationException("AsyncCustomPager.nextPage() must be implemented. "
-                + "Consider using nextPageAsync() for async operations, or implement synchronous blocking version.");
-    }
-
-    @Override
-    public BiDirectionalPage<T> previousPage() throws IOException {
-        throw new UnsupportedOperationException(
-                "AsyncCustomPager.previousPage() must be implemented. "
-                        + "Consider using previousPageAsync() for async operations, or implement synchronous blocking version.");
-    }
-
-    @Override
-    public List<T> getItems() {
-        throw new UnsupportedOperationException("AsyncCustomPager.getItems() must be implemented. "
-                + "This method should return the items in the current page.");
-    }
-
-    @Override
-    public <R> Optional<R> getResponse() {
-        throw new UnsupportedOperationException("AsyncCustomPager.getResponse() must be implemented. "
-                + "This method should return the full response object for accessing pagination metadata.");
-    }
-
-    /**
-     * Asynchronously iterate through all pages starting from current.
-     * Returns a CompletableFuture that completes with all items from all pages.
-     *
-     * @return CompletableFuture containing all items across all pages
-     */
-    public CompletableFuture<List<T>> getAllItemsAsync() {
-        throw new UnsupportedOperationException("AsyncCustomPager.getAllItemsAsync() must be implemented. "
-                + "This method should asynchronously fetch all pages and return all items.");
-    }
-
-    /**
-     * Process each page asynchronously as it arrives.
-     *
-     * @param pageProcessor Function to process each page
-     * @return CompletableFuture that completes when all pages are processed
-     */
-    public CompletableFuture<Void> forEachPageAsync(
-            java.util.function.Function<List<T>, CompletionStage<Void>> pageProcessor) {
-        throw new UnsupportedOperationException("AsyncCustomPager.forEachPageAsync() must be implemented. "
-                + "This method should asynchronously process each page with the given function.");
-    }
-}
diff --git a/src/main/java/com/squareup/square/core/BiDirectionalPage.java b/src/main/java/com/squareup/square/core/BiDirectionalPage.java
deleted file mode 100644
index bf982cfd..00000000
--- a/src/main/java/com/squareup/square/core/BiDirectionalPage.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
- * This file was auto-generated by Fern from our API Definition.
- */
-package com.squareup.square.core;
-
-import java.util.List;
-
-/**
- * Interface for pages that support bidirectional pagination (both forward and backward navigation).
- * This is used for custom pagination scenarios where the API provides both next and previous page links.
- *
- * @param <T> The type of items in the page
- */
-public interface BiDirectionalPage<T> {
-    /**
-     * Returns whether there is a next page available.
-     *
-     * @return true if next page exists and can be fetched
-     */
-    boolean hasNext();
-
-    /**
-     * Returns whether there is a previous page available.
-     *
-     * @return true if previous page exists and can be fetched
-     */
-    boolean hasPrevious();
-
-    /**
-     * Fetches and returns the next page.
-     *
-     * @return the next page
-     * @throws java.util.NoSuchElementException if no next page exists
-     * @throws java.io.IOException if the HTTP request fails
-     */
-    BiDirectionalPage<T> nextPage() throws java.io.IOException;
-
-    /**
-     * Fetches and returns the previous page.
-     *
-     * @return the previous page
-     * @throws java.util.NoSuchElementException if no previous page exists
-     * @throws java.io.IOException if the HTTP request fails
-     */
-    BiDirectionalPage<T> previousPage() throws java.io.IOException;
-
-    /**
-     * Returns the items in the current page.
-     *
-     * @return list of items in this page
-     */
-    List<T> getItems();
-
-    /**
-     * Returns the full response object for accessing pagination metadata.
-     *
-     * @return Optional containing the response, or empty if unavailable
-     */
-    <R> java.util.Optional<R> getResponse();
-}
diff --git a/src/main/java/com/squareup/square/core/ClientOptions.java b/src/main/java/com/squareup/square/core/ClientOptions.java
index 54c47564..c0b18131 100644
--- a/src/main/java/com/squareup/square/core/ClientOptions.java
+++ b/src/main/java/com/squareup/square/core/ClientOptions.java
@@ -23,28 +23,32 @@ public final class ClientOptions {
 
     private final int maxRetries;
 
+    private final Optional<LogConfig> logging;
+
     private ClientOptions(
             Environment environment,
             Map<String, String> headers,
             Map<String, Supplier<String>> headerSuppliers,
             OkHttpClient httpClient,
             int timeout,
-            int maxRetries) {
+            int maxRetries,
+            Optional<LogConfig> logging) {
         this.environment = environment;
         this.headers = new HashMap<>();
         this.headers.putAll(headers);
         this.headers.putAll(new HashMap<String, String>() {
             {
-                put("User-Agent", "com.squareup:square/46.0.0.20260122");
+                put("User-Agent", "com.squareup:square/46.1.0.20260122");
                 put("X-Fern-Language", "JAVA");
                 put("X-Fern-SDK-Name", "com.square.fern:api-sdk");
-                put("X-Fern-SDK-Version", "46.0.0.20260122");
+                put("X-Fern-SDK-Version", "46.1.0.20260122");
             }
         });
         this.headerSuppliers = headerSuppliers;
         this.httpClient = httpClient;
         this.timeout = timeout;
         this.maxRetries = maxRetries;
+        this.logging = logging;
     }
 
     public Environment environment() {
@@ -90,6 +94,10 @@ public int maxRetries() {
         return this.maxRetries;
     }
 
+    public Optional<LogConfig> logging() {
+        return this.logging;
+    }
+
     public static Builder builder() {
         return new Builder();
     }
@@ -107,6 +115,8 @@ public static class Builder {
 
         private OkHttpClient httpClient = null;
 
+        private Optional<LogConfig> logging = Optional.empty();
+
         public Builder environment(Environment environment) {
             this.environment = environment;
             return this;
@@ -151,6 +161,14 @@ public Builder httpClient(OkHttpClient httpClient) {
             return this;
         }
 
+        /**
+         * Configure logging for the SDK. Silent by default — no log output unless explicitly configured.
+         */
+        public Builder logging(LogConfig logging) {
+            this.logging = Optional.of(logging);
+            return this;
+        }
+
         public ClientOptions build() {
             OkHttpClient.Builder httpClientBuilder =
                     this.httpClient != null ? this.httpClient.newBuilder() : new OkHttpClient.Builder();
@@ -170,11 +188,20 @@ public ClientOptions build() {
                         .addInterceptor(new RetryInterceptor(this.maxRetries));
             }
 
+            Logger logger = Logger.from(this.logging);
+            httpClientBuilder.addInterceptor(new LoggingInterceptor(logger));
+
             this.httpClient = httpClientBuilder.build();
             this.timeout = Optional.of(httpClient.callTimeoutMillis() / 1000);
 
             return new ClientOptions(
-                    environment, headers, headerSuppliers, httpClient, this.timeout.get(), this.maxRetries);
+                    environment,
+                    headers,
+                    headerSuppliers,
+                    httpClient,
+                    this.timeout.get(),
+                    this.maxRetries,
+                    this.logging);
         }
 
         /**
@@ -188,6 +215,7 @@ public static Builder from(ClientOptions clientOptions) {
             builder.headers.putAll(clientOptions.headers);
             builder.headerSuppliers.putAll(clientOptions.headerSuppliers);
             builder.maxRetries = clientOptions.maxRetries();
+            builder.logging = clientOptions.logging();
             return builder;
         }
     }
diff --git a/src/main/java/com/squareup/square/core/ConsoleLogger.java b/src/main/java/com/squareup/square/core/ConsoleLogger.java
new file mode 100644
index 00000000..8c45958b
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/ConsoleLogger.java
@@ -0,0 +1,51 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+import java.util.logging.Level;
+
+/**
+ * Default logger implementation that writes to the console using {@link java.util.logging.Logger}.
+ *
+ * <p>Uses the "fern" logger name with a simple format of "LEVEL - message".
+ */
+public final class ConsoleLogger implements ILogger {
+
+    private static final java.util.logging.Logger logger = java.util.logging.Logger.getLogger("fern");
+
+    static {
+        if (logger.getHandlers().length == 0) {
+            java.util.logging.ConsoleHandler handler = new java.util.logging.ConsoleHandler();
+            handler.setFormatter(new java.util.logging.SimpleFormatter() {
+                @Override
+                public String format(java.util.logging.LogRecord record) {
+                    return record.getLevel() + " - " + record.getMessage() + System.lineSeparator();
+                }
+            });
+            logger.addHandler(handler);
+            logger.setUseParentHandlers(false);
+            logger.setLevel(Level.ALL);
+        }
+    }
+
+    @Override
+    public void debug(String message) {
+        logger.log(Level.FINE, message);
+    }
+
+    @Override
+    public void info(String message) {
+        logger.log(Level.INFO, message);
+    }
+
+    @Override
+    public void warn(String message) {
+        logger.log(Level.WARNING, message);
+    }
+
+    @Override
+    public void error(String message) {
+        logger.log(Level.SEVERE, message);
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/CustomPager.java b/src/main/java/com/squareup/square/core/CustomPager.java
deleted file mode 100644
index 337d8117..00000000
--- a/src/main/java/com/squareup/square/core/CustomPager.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/**
- * This file was auto-generated by Fern from our API Definition.
- */
-package com.squareup.square.core;
-
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Optional;
-
-/**
- * Skeleton implementation for custom bidirectional pagination.
- *
- * THIS CLASS MUST BE IMPLEMENTED BY THE USER.
- *
- * This file is added to .fernignore and will not be regenerated.
- * Replace this skeleton implementation with your custom pagination logic
- * that handles your API's specific pagination structure (e.g., HATEOAS links).
- *
- * Example implementation for HATEOAS-style pagination:
- * <pre>{@code
- * public class CustomPager<T> implements BiDirectionalPage<T>, Iterable<T> {
- *     private final List<T> items;
- *     private final String nextUrl;
- *     private final String previousUrl;
- *     private final OkHttpClient client;
- *     private final TypeReference<ResponseType<T>> responseType;
- *
- *     public CustomPager(Response<T> response, OkHttpClient client, ...) {
- *         this.items = response.getData();
- *         this.nextUrl = response.getLinks().getNext();
- *         this.previousUrl = response.getLinks().getPrevious();
- *         // ... store other needed context
- *     }
- *
- *     @Override
- *     public boolean hasNext() {
- *         return nextUrl != null;
- *     }
- *
- *     @Override
- *     public CustomPager<T> nextPage() throws IOException {
- *         if (!hasNext()) {
- *             throw new NoSuchElementException("No next page available");
- *         }
- *         // Make HTTP request to nextUrl
- *         // Parse response
- *         // Return new CustomPager instance
- *     }
- *
- *     // ... implement other methods
- * }
- * }</pre>
- *
- * @param <T> The type of items in the page
- */
-public class CustomPager<T> implements BiDirectionalPage<T>, Iterable<T> {
-
-    /**
-     * Create a CustomPager from an initial response.
-     *
-     * @param initialResponse The first page response from the API
-     * @param clientOptions The client options containing HTTP client and other configuration
-     * @param requestOptions Request options for authentication, headers, etc.
-     * @return A new CustomPager instance
-     * @throws IOException if the request fails
-     */
-    public static <T> CustomPager<T> create(Object initialResponse, ClientOptions clientOptions, Object requestOptions)
-            throws IOException {
-        throw new UnsupportedOperationException("CustomPager must be implemented. "
-                + "Please implement this class in core/CustomPager.java to define your pagination logic. "
-                + "This file has been added to .fernignore and will not be overwritten. "
-                + "See the class documentation for implementation examples.");
-    }
-
-    @Override
-    public boolean hasNext() {
-        throw new UnsupportedOperationException("CustomPager.hasNext() must be implemented. "
-                + "This method should return true if a next page is available.");
-    }
-
-    @Override
-    public boolean hasPrevious() {
-        throw new UnsupportedOperationException("CustomPager.hasPrevious() must be implemented. "
-                + "This method should return true if a previous page is available.");
-    }
-
-    @Override
-    public BiDirectionalPage<T> nextPage() throws IOException {
-        throw new UnsupportedOperationException("CustomPager.nextPage() must be implemented. "
-                + "This method should fetch and return the next page of results.");
-    }
-
-    @Override
-    public BiDirectionalPage<T> previousPage() throws IOException {
-        throw new UnsupportedOperationException("CustomPager.previousPage() must be implemented. "
-                + "This method should fetch and return the previous page of results.");
-    }
-
-    @Override
-    public List<T> getItems() {
-        throw new UnsupportedOperationException("CustomPager.getItems() must be implemented. "
-                + "This method should return the items in the current page.");
-    }
-
-    @Override
-    public <R> Optional<R> getResponse() {
-        throw new UnsupportedOperationException("CustomPager.getResponse() must be implemented. "
-                + "This method should return the full response object for accessing pagination metadata.");
-    }
-
-    @Override
-    public Iterator<T> iterator() {
-        throw new UnsupportedOperationException("CustomPager.iterator() must be implemented. "
-                + "This method should return an iterator that traverses all items across all pages.");
-    }
-}
diff --git a/src/main/java/com/squareup/square/core/ILogger.java b/src/main/java/com/squareup/square/core/ILogger.java
new file mode 100644
index 00000000..0e3d6711
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/ILogger.java
@@ -0,0 +1,38 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+/**
+ * Interface for custom logger implementations.
+ *
+ * <p>Implement this interface to provide a custom logging backend for the SDK.
+ * The SDK will call the appropriate method based on the log level.
+ *
+ * <p>Example:
+ * <pre>{@code
+ * public class MyCustomLogger implements ILogger {
+ *     public void debug(String message) {
+ *         System.out.println("[DBG] " + message);
+ *     }
+ *     public void info(String message) {
+ *         System.out.println("[INF] " + message);
+ *     }
+ *     public void warn(String message) {
+ *         System.out.println("[WRN] " + message);
+ *     }
+ *     public void error(String message) {
+ *         System.out.println("[ERR] " + message);
+ *     }
+ * }
+ * }</pre>
+ */
+public interface ILogger {
+    void debug(String message);
+
+    void info(String message);
+
+    void warn(String message);
+
+    void error(String message);
+}
diff --git a/src/main/java/com/squareup/square/core/LogConfig.java b/src/main/java/com/squareup/square/core/LogConfig.java
new file mode 100644
index 00000000..cfa08c26
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/LogConfig.java
@@ -0,0 +1,98 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+/**
+ * Configuration for SDK logging.
+ *
+ * <p>Use the builder to configure logging behavior:
+ * <pre>{@code
+ * LogConfig config = LogConfig.builder()
+ *     .level(LogLevel.DEBUG)
+ *     .silent(false)
+ *     .build();
+ * }</pre>
+ *
+ * <p>Or with a custom logger:
+ * <pre>{@code
+ * LogConfig config = LogConfig.builder()
+ *     .level(LogLevel.DEBUG)
+ *     .logger(new MyCustomLogger())
+ *     .silent(false)
+ *     .build();
+ * }</pre>
+ *
+ * <p>Defaults:
+ * <ul>
+ *   <li>{@code level} — {@link LogLevel#INFO}</li>
+ *   <li>{@code logger} — {@link ConsoleLogger} (writes to stderr via java.util.logging)</li>
+ *   <li>{@code silent} — {@code true} (no output unless explicitly enabled)</li>
+ * </ul>
+ */
+public final class LogConfig {
+
+    private final LogLevel level;
+    private final ILogger logger;
+    private final boolean silent;
+
+    private LogConfig(LogLevel level, ILogger logger, boolean silent) {
+        this.level = level;
+        this.logger = logger;
+        this.silent = silent;
+    }
+
+    public LogLevel level() {
+        return level;
+    }
+
+    public ILogger logger() {
+        return logger;
+    }
+
+    public boolean silent() {
+        return silent;
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static final class Builder {
+        private LogLevel level = LogLevel.INFO;
+        private ILogger logger = new ConsoleLogger();
+        private boolean silent = true;
+
+        private Builder() {}
+
+        /**
+         * Set the minimum log level. Only messages at this level or above will be logged.
+         * Defaults to {@link LogLevel#INFO}.
+         */
+        public Builder level(LogLevel level) {
+            this.level = level;
+            return this;
+        }
+
+        /**
+         * Set a custom logger implementation. Defaults to {@link ConsoleLogger}.
+         */
+        public Builder logger(ILogger logger) {
+            this.logger = logger;
+            return this;
+        }
+
+        /**
+         * Set whether logging is silent (disabled). Defaults to {@code true}.
+         * Set to {@code false} to enable log output.
+         */
+        public Builder silent(boolean silent) {
+            this.silent = silent;
+            return this;
+        }
+
+        public LogConfig build() {
+            return new LogConfig(level, logger, silent);
+        }
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/LogLevel.java b/src/main/java/com/squareup/square/core/LogLevel.java
new file mode 100644
index 00000000..0acbb26c
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/LogLevel.java
@@ -0,0 +1,36 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+/**
+ * Log levels for SDK logging configuration.
+ * Silent by default — no log output unless explicitly configured.
+ */
+public enum LogLevel {
+    DEBUG(1),
+    INFO(2),
+    WARN(3),
+    ERROR(4);
+
+    private final int value;
+
+    LogLevel(int value) {
+        this.value = value;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    /**
+     * Parse a log level from a string (case-insensitive).
+     *
+     * @param level the level string (debug, info, warn, error)
+     * @return the corresponding LogLevel
+     * @throws IllegalArgumentException if the string does not match any level
+     */
+    public static LogLevel fromString(String level) {
+        return LogLevel.valueOf(level.toUpperCase());
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/Logger.java b/src/main/java/com/squareup/square/core/Logger.java
new file mode 100644
index 00000000..13e7d2e1
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/Logger.java
@@ -0,0 +1,97 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+/**
+ * SDK logger that filters messages based on level and silent mode.
+ *
+ * <p>Silent by default — no log output unless explicitly configured.
+ * Create via {@link LogConfig} or directly:
+ * <pre>{@code
+ * Logger logger = new Logger(LogLevel.DEBUG, new ConsoleLogger(), false);
+ * logger.debug("request sent");
+ * }</pre>
+ */
+public final class Logger {
+
+    private static final Logger DEFAULT = new Logger(LogLevel.INFO, new ConsoleLogger(), true);
+
+    private final LogLevel level;
+    private final ILogger logger;
+    private final boolean silent;
+
+    public Logger(LogLevel level, ILogger logger, boolean silent) {
+        this.level = level;
+        this.logger = logger;
+        this.silent = silent;
+    }
+
+    /**
+     * Returns a default silent logger (no output).
+     */
+    public static Logger getDefault() {
+        return DEFAULT;
+    }
+
+    /**
+     * Creates a Logger from a {@link LogConfig}. If config is {@code null}, returns the default silent logger.
+     */
+    public static Logger from(LogConfig config) {
+        if (config == null) {
+            return DEFAULT;
+        }
+        return new Logger(config.level(), config.logger(), config.silent());
+    }
+
+    /**
+     * Creates a Logger from an {@code Optional<LogConfig>}. If empty, returns the default silent logger.
+     */
+    public static Logger from(java.util.Optional<LogConfig> config) {
+        return config.map(Logger::from).orElse(DEFAULT);
+    }
+
+    private boolean shouldLog(LogLevel messageLevel) {
+        return !silent && level.getValue() <= messageLevel.getValue();
+    }
+
+    public boolean isDebug() {
+        return shouldLog(LogLevel.DEBUG);
+    }
+
+    public boolean isInfo() {
+        return shouldLog(LogLevel.INFO);
+    }
+
+    public boolean isWarn() {
+        return shouldLog(LogLevel.WARN);
+    }
+
+    public boolean isError() {
+        return shouldLog(LogLevel.ERROR);
+    }
+
+    public void debug(String message) {
+        if (isDebug()) {
+            logger.debug(message);
+        }
+    }
+
+    public void info(String message) {
+        if (isInfo()) {
+            logger.info(message);
+        }
+    }
+
+    public void warn(String message) {
+        if (isWarn()) {
+            logger.warn(message);
+        }
+    }
+
+    public void error(String message) {
+        if (isError()) {
+            logger.error(message);
+        }
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/LoggingInterceptor.java b/src/main/java/com/squareup/square/core/LoggingInterceptor.java
new file mode 100644
index 00000000..eda0464c
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/LoggingInterceptor.java
@@ -0,0 +1,104 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+/**
+ * OkHttp interceptor that logs HTTP requests and responses.
+ *
+ * <p>Logs request method, URL, and headers (with sensitive values redacted) at debug level.
+ * Logs response status at debug level, and 4xx/5xx responses at error level.
+ * Does nothing if the logger is silent.
+ */
+public final class LoggingInterceptor implements Interceptor {
+
+    private static final Set<String> SENSITIVE_HEADERS = new HashSet<>(Arrays.asList(
+            "authorization",
+            "www-authenticate",
+            "x-api-key",
+            "api-key",
+            "apikey",
+            "x-api-token",
+            "x-auth-token",
+            "auth-token",
+            "proxy-authenticate",
+            "proxy-authorization",
+            "cookie",
+            "set-cookie",
+            "x-csrf-token",
+            "x-xsrf-token",
+            "x-session-token",
+            "x-access-token"));
+
+    private final Logger logger;
+
+    public LoggingInterceptor(Logger logger) {
+        this.logger = logger;
+    }
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request request = chain.request();
+
+        if (logger.isDebug()) {
+            StringBuilder sb = new StringBuilder();
+            sb.append("HTTP Request: ").append(request.method()).append(" ").append(request.url());
+            sb.append(" headers={");
+            boolean first = true;
+            for (String name : request.headers().names()) {
+                if (!first) {
+                    sb.append(", ");
+                }
+                sb.append(name).append("=");
+                if (SENSITIVE_HEADERS.contains(name.toLowerCase())) {
+                    sb.append("[REDACTED]");
+                } else {
+                    sb.append(request.header(name));
+                }
+                first = false;
+            }
+            sb.append("}");
+            sb.append(" has_body=").append(request.body() != null);
+            logger.debug(sb.toString());
+        }
+
+        Response response = chain.proceed(request);
+
+        if (logger.isDebug()) {
+            StringBuilder sb = new StringBuilder();
+            sb.append("HTTP Response: status=").append(response.code());
+            sb.append(" url=").append(response.request().url());
+            sb.append(" headers={");
+            boolean first = true;
+            for (String name : response.headers().names()) {
+                if (!first) {
+                    sb.append(", ");
+                }
+                sb.append(name).append("=");
+                if (SENSITIVE_HEADERS.contains(name.toLowerCase())) {
+                    sb.append("[REDACTED]");
+                } else {
+                    sb.append(response.header(name));
+                }
+                first = false;
+            }
+            sb.append("}");
+            logger.debug(sb.toString());
+        }
+
+        if (response.code() >= 400 && logger.isError()) {
+            logger.error("HTTP Error: status=" + response.code() + " url="
+                    + response.request().url());
+        }
+
+        return response;
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/RequestOptions.java b/src/main/java/com/squareup/square/core/RequestOptions.java
index 7f56bad6..563fb2a2 100644
--- a/src/main/java/com/squareup/square/core/RequestOptions.java
+++ b/src/main/java/com/squareup/square/core/RequestOptions.java
@@ -22,19 +22,27 @@ public final class RequestOptions {
 
     private final Map<String, Supplier<String>> headerSuppliers;
 
+    private final Map<String, String> queryParameters;
+
+    private final Map<String, Supplier<String>> queryParameterSuppliers;
+
     private RequestOptions(
             String token,
             String version,
             Optional<Integer> timeout,
             TimeUnit timeoutTimeUnit,
             Map<String, String> headers,
-            Map<String, Supplier<String>> headerSuppliers) {
+            Map<String, Supplier<String>> headerSuppliers,
+            Map<String, String> queryParameters,
+            Map<String, Supplier<String>> queryParameterSuppliers) {
         this.token = token;
         this.version = version;
         this.timeout = timeout;
         this.timeoutTimeUnit = timeoutTimeUnit;
         this.headers = headers;
         this.headerSuppliers = headerSuppliers;
+        this.queryParameters = queryParameters;
+        this.queryParameterSuppliers = queryParameterSuppliers;
     }
 
     public Optional<Integer> getTimeout() {
@@ -60,6 +68,14 @@ public Map<String, String> getHeaders() {
         return headers;
     }
 
+    public Map<String, String> getQueryParameters() {
+        Map<String, String> queryParameters = new HashMap<>(this.queryParameters);
+        this.queryParameterSuppliers.forEach((key, supplier) -> {
+            queryParameters.put(key, supplier.get());
+        });
+        return queryParameters;
+    }
+
     public static Builder builder() {
         return new Builder();
     }
@@ -77,6 +93,10 @@ public static class Builder {
 
         private final Map<String, Supplier<String>> headerSuppliers = new HashMap<>();
 
+        private final Map<String, String> queryParameters = new HashMap<>();
+
+        private final Map<String, Supplier<String>> queryParameterSuppliers = new HashMap<>();
+
         public Builder token(String token) {
             this.token = token;
             return this;
@@ -108,8 +128,26 @@ public Builder addHeader(String key, Supplier<String> value) {
             return this;
         }
 
+        public Builder addQueryParameter(String key, String value) {
+            this.queryParameters.put(key, value);
+            return this;
+        }
+
+        public Builder addQueryParameter(String key, Supplier<String> value) {
+            this.queryParameterSuppliers.put(key, value);
+            return this;
+        }
+
         public RequestOptions build() {
-            return new RequestOptions(token, version, timeout, timeoutTimeUnit, headers, headerSuppliers);
+            return new RequestOptions(
+                    token,
+                    version,
+                    timeout,
+                    timeoutTimeUnit,
+                    headers,
+                    headerSuppliers,
+                    queryParameters,
+                    queryParameterSuppliers);
         }
     }
 }
diff --git a/src/main/java/com/squareup/square/core/Rfc2822DateTimeDeserializer.java b/src/main/java/com/squareup/square/core/Rfc2822DateTimeDeserializer.java
new file mode 100644
index 00000000..921a9252
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/Rfc2822DateTimeDeserializer.java
@@ -0,0 +1,25 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import java.io.IOException;
+import java.time.OffsetDateTime;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * Custom deserializer that handles converting RFC 2822 (RFC 1123) dates into {@link OffsetDateTime} objects.
+ * This is used for fields with format "date-time-rfc-2822", such as Twilio's dateCreated, dateSent, dateUpdated.
+ */
+public class Rfc2822DateTimeDeserializer extends JsonDeserializer<OffsetDateTime> {
+
+    @Override
+    public OffsetDateTime deserialize(JsonParser parser, DeserializationContext context) throws IOException {
+        String raw = parser.getValueAsString();
+        return ZonedDateTime.parse(raw, DateTimeFormatter.RFC_1123_DATE_TIME).toOffsetDateTime();
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/SseEvent.java b/src/main/java/com/squareup/square/core/SseEvent.java
new file mode 100644
index 00000000..c5906945
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/SseEvent.java
@@ -0,0 +1,114 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.Objects;
+import java.util.Optional;
+
+/**
+ * Represents a Server-Sent Event with all standard fields.
+ * Used for event-level discrimination where the discriminator is at the SSE envelope level.
+ *
+ * @param <T> The type of the data field
+ */
+@JsonInclude(JsonInclude.Include.NON_ABSENT)
+@JsonIgnoreProperties(ignoreUnknown = true)
+public final class SseEvent<T> {
+    private final String event;
+    private final T data;
+    private final String id;
+    private final Long retry;
+
+    private SseEvent(String event, T data, String id, Long retry) {
+        this.event = event;
+        this.data = data;
+        this.id = id;
+        this.retry = retry;
+    }
+
+    @JsonProperty("event")
+    public Optional<String> getEvent() {
+        return Optional.ofNullable(event);
+    }
+
+    @JsonProperty("data")
+    public T getData() {
+        return data;
+    }
+
+    @JsonProperty("id")
+    public Optional<String> getId() {
+        return Optional.ofNullable(id);
+    }
+
+    @JsonProperty("retry")
+    public Optional<Long> getRetry() {
+        return Optional.ofNullable(retry);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        SseEvent<?> sseEvent = (SseEvent<?>) o;
+        return Objects.equals(event, sseEvent.event)
+                && Objects.equals(data, sseEvent.data)
+                && Objects.equals(id, sseEvent.id)
+                && Objects.equals(retry, sseEvent.retry);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(event, data, id, retry);
+    }
+
+    @Override
+    public String toString() {
+        return "SseEvent{" + "event='"
+                + event + '\'' + ", data="
+                + data + ", id='"
+                + id + '\'' + ", retry="
+                + retry + '}';
+    }
+
+    public static <T> Builder<T> builder() {
+        return new Builder<>();
+    }
+
+    public static final class Builder<T> {
+        private String event;
+        private T data;
+        private String id;
+        private Long retry;
+
+        private Builder() {}
+
+        public Builder<T> event(String event) {
+            this.event = event;
+            return this;
+        }
+
+        public Builder<T> data(T data) {
+            this.data = data;
+            return this;
+        }
+
+        public Builder<T> id(String id) {
+            this.id = id;
+            return this;
+        }
+
+        public Builder<T> retry(Long retry) {
+            this.retry = retry;
+            return this;
+        }
+
+        public SseEvent<T> build() {
+            return new SseEvent<>(event, data, id, retry);
+        }
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/SseEventParser.java b/src/main/java/com/squareup/square/core/SseEventParser.java
new file mode 100644
index 00000000..dcbd4112
--- /dev/null
+++ b/src/main/java/com/squareup/square/core/SseEventParser.java
@@ -0,0 +1,228 @@
+/**
+ * This file was auto-generated by Fern from our API Definition.
+ */
+package com.squareup.square.core;
+
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.core.type.TypeReference;
+import java.lang.reflect.Field;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/**
+ * Utility class for parsing Server-Sent Events with support for discriminated unions.
+ * <p>
+ * Handles two discrimination patterns:
+ * <ol>
+ *   <li><b>Data-level discrimination</b>: The discriminator (e.g., 'type') is inside the JSON data payload.
+ *       Jackson's polymorphic deserialization handles this automatically.</li>
+ *   <li><b>Event-level discrimination</b>: The discriminator (e.g., 'event') is at the SSE envelope level.
+ *       This requires constructing the full SSE envelope for Jackson to process.</li>
+ * </ol>
+ */
+public final class SseEventParser {
+
+    private static final Set<String> SSE_ENVELOPE_FIELDS = new HashSet<>(Arrays.asList("event", "data", "id", "retry"));
+
+    private SseEventParser() {
+        // Utility class
+    }
+
+    /**
+     * Parse an SSE event using event-level discrimination.
+     * <p>
+     * Constructs the full SSE envelope object with event, data, id, and retry fields,
+     * then deserializes it to the target union type.
+     *
+     * @param eventType            The SSE event type (from event: field)
+     * @param data                 The SSE data content (from data: field)
+     * @param id                   The SSE event ID (from id: field), may be null
+     * @param retry                The SSE retry value (from retry: field), may be null
+     * @param unionClass           The target union class
+     * @param discriminatorProperty The property name used for discrimination (e.g., "event")
+     * @param <T>                  The target type
+     * @return The deserialized object
+     */
+    public static <T> T parseEventLevelUnion(
+            String eventType, String data, String id, Long retry, Class<T> unionClass, String discriminatorProperty) {
+        try {
+            // Determine if data should be parsed as JSON based on the variant's expected type
+            Object parsedData = parseDataForVariant(eventType, data, unionClass, discriminatorProperty);
+
+            // Construct the SSE envelope object
+            Map<String, Object> envelope = new HashMap<>();
+            envelope.put(discriminatorProperty, eventType);
+            envelope.put("data", parsedData);
+            if (id != null) {
+                envelope.put("id", id);
+            }
+            if (retry != null) {
+                envelope.put("retry", retry);
+            }
+
+            // Serialize to JSON and deserialize to target type
+            String envelopeJson = ObjectMappers.JSON_MAPPER.writeValueAsString(envelope);
+            return ObjectMappers.JSON_MAPPER.readValue(envelopeJson, unionClass);
+        } catch (Exception e) {
+            throw new RuntimeException("Failed to parse SSE event with event-level discrimination", e);
+        }
+    }
+
+    /**
+     * Parse an SSE event using data-level discrimination.
+     * <p>
+     * Simply parses the data field as JSON and deserializes it to the target type.
+     * Jackson's polymorphic deserialization handles the discrimination automatically.
+     *
+     * @param data       The SSE data content (from data: field)
+     * @param valueType  The target type
+     * @param <T>        The target type
+     * @return The deserialized object
+     */
+    public static <T> T parseDataLevelUnion(String data, Class<T> valueType) {
+        try {
+            return ObjectMappers.JSON_MAPPER.readValue(data, valueType);
+        } catch (Exception e) {
+            throw new RuntimeException("Failed to parse SSE data with data-level discrimination", e);
+        }
+    }
+
+    /**
+     * Determines if the given discriminator property indicates event-level discrimination.
+     * Event-level discrimination occurs when the discriminator is an SSE envelope field.
+     *
+     * @param discriminatorProperty The discriminator property name
+     * @return true if event-level discrimination, false otherwise
+     */
+    public static boolean isEventLevelDiscrimination(String discriminatorProperty) {
+        return SSE_ENVELOPE_FIELDS.contains(discriminatorProperty);
+    }
+
+    /**
+     * Attempts to find the discriminator property from the union class's Jackson annotations.
+     *
+     * @param unionClass The union class to inspect
+     * @return The discriminator property name, or empty if not found
+     */
+    public static Optional<String> findDiscriminatorProperty(Class<?> unionClass) {
+        try {
+            // Look for JsonTypeInfo on the class itself
+            JsonTypeInfo typeInfo = unionClass.getAnnotation(JsonTypeInfo.class);
+            if (typeInfo != null && !typeInfo.property().isEmpty()) {
+                return Optional.of(typeInfo.property());
+            }
+
+            // Look for inner Value interface with JsonTypeInfo
+            for (Class<?> innerClass : unionClass.getDeclaredClasses()) {
+                typeInfo = innerClass.getAnnotation(JsonTypeInfo.class);
+                if (typeInfo != null && !typeInfo.property().isEmpty()) {
+                    return Optional.of(typeInfo.property());
+                }
+            }
+        } catch (Exception e) {
+            // Ignore reflection errors
+        }
+        return Optional.empty();
+    }
+
+    /**
+     * Parse the data field based on what the matching variant expects.
+     * If the variant expects a String for its data field, returns the raw string.
+     * Otherwise, parses the data as JSON.
+     */
+    private static Object parseDataForVariant(
+            String eventType, String data, Class<?> unionClass, String discriminatorProperty) {
+        if (data == null || data.isEmpty()) {
+            return data;
+        }
+
+        try {
+            // Try to find the variant class that matches this event type
+            Class<?> variantClass = findVariantClass(unionClass, eventType, discriminatorProperty);
+            if (variantClass != null) {
+                // Check if the variant expects a String for the data field
+                Field dataField = findField(variantClass, "data");
+                if (dataField != null && String.class.equals(dataField.getType())) {
+                    // Variant expects String - return raw data
+                    return data;
+                }
+            }
+
+            // Try to parse as JSON
+            return ObjectMappers.JSON_MAPPER.readValue(data, new TypeReference<Map<String, Object>>() {});
+        } catch (Exception e) {
+            // If JSON parsing fails, return as string
+            return data;
+        }
+    }
+
+    /**
+     * Find the variant class that matches the given discriminator value.
+     */
+    private static Class<?> findVariantClass(
+            Class<?> unionClass, String discriminatorValue, String discriminatorProperty) {
+        try {
+            // Look for JsonSubTypes annotation
+            JsonSubTypes subTypes = findJsonSubTypes(unionClass);
+            if (subTypes == null) {
+                return null;
+            }
+
+            for (JsonSubTypes.Type subType : subTypes.value()) {
+                JsonTypeName typeName = subType.value().getAnnotation(JsonTypeName.class);
+                if (typeName != null && typeName.value().equals(discriminatorValue)) {
+                    return subType.value();
+                }
+                // Also check the name attribute of @JsonSubTypes.Type
+                if (subType.name().equals(discriminatorValue)) {
+                    return subType.value();
+                }
+            }
+        } catch (Exception e) {
+            // Ignore reflection errors
+        }
+        return null;
+    }
+
+    /**
+     * Find JsonSubTypes annotation on the class or its inner classes.
+     */
+    private static JsonSubTypes findJsonSubTypes(Class<?> unionClass) {
+        // Check the class itself
+        JsonSubTypes subTypes = unionClass.getAnnotation(JsonSubTypes.class);
+        if (subTypes != null) {
+            return subTypes;
+        }
+
+        // Check inner classes (for Fern-style unions with inner Value interface)
+        for (Class<?> innerClass : unionClass.getDeclaredClasses()) {
+            subTypes = innerClass.getAnnotation(JsonSubTypes.class);
+            if (subTypes != null) {
+                return subTypes;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Find a field by name in a class, including private fields.
+     */
+    private static Field findField(Class<?> clazz, String fieldName) {
+        try {
+            return clazz.getDeclaredField(fieldName);
+        } catch (NoSuchFieldException e) {
+            // Check superclass
+            Class<?> superClass = clazz.getSuperclass();
+            if (superClass != null && superClass != Object.class) {
+                return findField(superClass, fieldName);
+            }
+            return null;
+        }
+    }
+}
diff --git a/src/main/java/com/squareup/square/core/Stream.java b/src/main/java/com/squareup/square/core/Stream.java
index 39ae566e..a793ab09 100644
--- a/src/main/java/com/squareup/square/core/Stream.java
+++ b/src/main/java/com/squareup/square/core/Stream.java
@@ -28,7 +28,8 @@ public final class Stream<T> implements Iterable<T>, Closeable {
 
     public enum StreamType {
         JSON,
-        SSE
+        SSE,
+        SSE_EVENT_DISCRIMINATED
     }
 
     private final Class<T> valueType;
@@ -37,6 +38,7 @@ public enum StreamType {
     private final String messageTerminator;
     private final String streamTerminator;
     private final Reader sseReader;
+    private final String discriminatorProperty;
     private boolean isClosed = false;
 
     /**
@@ -53,11 +55,18 @@ public Stream(Class<T> valueType, Reader reader, String delimiter) {
         this.messageTerminator = delimiter;
         this.streamTerminator = null;
         this.sseReader = null;
+        this.discriminatorProperty = null;
     }
 
     private Stream(Class<T> valueType, StreamType type, Reader reader, String terminator) {
+        this(valueType, type, reader, terminator, null);
+    }
+
+    private Stream(
+            Class<T> valueType, StreamType type, Reader reader, String terminator, String discriminatorProperty) {
         this.valueType = valueType;
         this.streamType = type;
+        this.discriminatorProperty = discriminatorProperty;
         if (type == StreamType.JSON) {
             this.scanner = new Scanner(reader).useDelimiter(terminator);
             this.messageTerminator = terminator;
@@ -87,6 +96,38 @@ public static <T> Stream<T> fromSse(Class<T> valueType, Reader sseReader, String
         return new Stream<>(valueType, StreamType.SSE, sseReader, streamTerminator);
     }
 
+    /**
+     * Creates a stream from SSE data with event-level discrimination support.
+     * Use this when the SSE payload is a discriminated union where the discriminator
+     * is an SSE envelope field (e.g., 'event').
+     *
+     * @param valueType             The class of the objects in the stream.
+     * @param sseReader             The reader that provides the SSE data.
+     * @param discriminatorProperty The property name used for discrimination (e.g., "event").
+     * @param <T>                   The type of objects in the stream.
+     * @return A new Stream instance configured for SSE with event-level discrimination.
+     */
+    public static <T> Stream<T> fromSseWithEventDiscrimination(
+            Class<T> valueType, Reader sseReader, String discriminatorProperty) {
+        return new Stream<>(valueType, StreamType.SSE_EVENT_DISCRIMINATED, sseReader, null, discriminatorProperty);
+    }
+
+    /**
+     * Creates a stream from SSE data with event-level discrimination support and a stream terminator.
+     *
+     * @param valueType             The class of the objects in the stream.
+     * @param sseReader             The reader that provides the SSE data.
+     * @param discriminatorProperty The property name used for discrimination (e.g., "event").
+     * @param streamTerminator      The terminator string that signals end of stream (e.g., "[DONE]").
+     * @param <T>                   The type of objects in the stream.
+     * @return A new Stream instance configured for SSE with event-level discrimination.
+     */
+    public static <T> Stream<T> fromSseWithEventDiscrimination(
+            Class<T> valueType, Reader sseReader, String discriminatorProperty, String streamTerminator) {
+        return new Stream<>(
+                valueType, StreamType.SSE_EVENT_DISCRIMINATED, sseReader, streamTerminator, discriminatorProperty);
+    }
+
     @Override
     public void close() throws IOException {
         if (!isClosed) {
@@ -112,10 +153,14 @@ private boolean isStreamClosed() {
      */
     @Override
     public Iterator<T> iterator() {
-        if (streamType == StreamType.SSE) {
-            return new SSEIterator();
-        } else {
-            return new JsonIterator();
+        switch (streamType) {
+            case SSE:
+                return new SSEIterator();
+            case SSE_EVENT_DISCRIMINATED:
+                return new SSEEventDiscriminatedIterator();
+            case JSON:
+            default:
+                return new JsonIterator();
         }
     }
 
@@ -299,4 +344,170 @@ private boolean readNextMessage() {
             }
         }
     }
+
+    /**
+     * Iterator for SSE streams with event-level discrimination.
+     * Uses SseEventParser to construct the full SSE envelope for Jackson deserialization.
+     */
+    private final class SSEEventDiscriminatedIterator implements Iterator<T> {
+        private Scanner sseScanner;
+        private T nextItem;
+        private boolean hasNextItem = false;
+        private boolean endOfStream = false;
+        private StringBuilder eventDataBuffer = new StringBuilder();
+        private String currentEventType = null;
+        private String currentEventId = null;
+        private Long currentRetry = null;
+
+        private SSEEventDiscriminatedIterator() {
+            if (sseReader != null && !isStreamClosed()) {
+                this.sseScanner = new Scanner(sseReader);
+            } else {
+                this.endOfStream = true;
+            }
+        }
+
+        @Override
+        public boolean hasNext() {
+            if (isStreamClosed() || endOfStream) {
+                return false;
+            }
+
+            if (hasNextItem) {
+                return true;
+            }
+
+            return readNextMessage();
+        }
+
+        @Override
+        public T next() {
+            if (!hasNext()) {
+                throw new NoSuchElementException("No more elements in stream");
+            }
+
+            T result = nextItem;
+            nextItem = null;
+            hasNextItem = false;
+            return result;
+        }
+
+        @Override
+        public void remove() {
+            throw new UnsupportedOperationException();
+        }
+
+        private boolean readNextMessage() {
+            if (sseScanner == null || isStreamClosed()) {
+                endOfStream = true;
+                return false;
+            }
+
+            try {
+                while (sseScanner.hasNextLine()) {
+                    String line = sseScanner.nextLine();
+
+                    if (line.trim().isEmpty()) {
+                        if (eventDataBuffer.length() > 0 || currentEventType != null) {
+                            try {
+                                // Use SseEventParser for event-level discrimination
+                                nextItem = SseEventParser.parseEventLevelUnion(
+                                        currentEventType,
+                                        eventDataBuffer.toString(),
+                                        currentEventId,
+                                        currentRetry,
+                                        valueType,
+                                        discriminatorProperty);
+                                hasNextItem = true;
+                                resetEventState();
+                                return true;
+                            } catch (Exception parseEx) {
+                                System.err.println("Failed to parse SSE event: " + parseEx.getMessage());
+                                resetEventState();
+                                continue;
+                            }
+                        }
+                        continue;
+                    }
+
+                    if (line.startsWith(DATA_PREFIX)) {
+                        String dataContent = line.substring(DATA_PREFIX.length());
+                        if (dataContent.startsWith(" ")) {
+                            dataContent = dataContent.substring(1);
+                        }
+
+                        if (eventDataBuffer.length() == 0
+                                && streamTerminator != null
+                                && dataContent.trim().equals(streamTerminator)) {
+                            endOfStream = true;
+                            return false;
+                        }
+
+                        if (eventDataBuffer.length() > 0) {
+                            eventDataBuffer.append('\n');
+                        }
+                        eventDataBuffer.append(dataContent);
+                    } else if (line.startsWith("event:")) {
+                        String eventValue = line.length() > 6 ? line.substring(6) : "";
+                        if (eventValue.startsWith(" ")) {
+                            eventValue = eventValue.substring(1);
+                        }
+                        currentEventType = eventValue;
+                    } else if (line.startsWith("id:")) {
+                        String idValue = line.length() > 3 ? line.substring(3) : "";
+                        if (idValue.startsWith(" ")) {
+                            idValue = idValue.substring(1);
+                        }
+                        currentEventId = idValue;
+                    } else if (line.startsWith("retry:")) {
+                        String retryValue = line.length() > 6 ? line.substring(6) : "";
+                        if (retryValue.startsWith(" ")) {
+                            retryValue = retryValue.substring(1);
+                        }
+                        try {
+                            currentRetry = Long.parseLong(retryValue.trim());
+                        } catch (NumberFormatException e) {
+                            // Ignore invalid retry values
+                        }
+                    } else if (line.startsWith(":")) {
+                        // Comment line (ignored)
+                    }
+                }
+
+                // Handle any remaining buffered data at end of stream
+                if (eventDataBuffer.length() > 0 || currentEventType != null) {
+                    try {
+                        nextItem = SseEventParser.parseEventLevelUnion(
+                                currentEventType,
+                                eventDataBuffer.toString(),
+                                currentEventId,
+                                currentRetry,
+                                valueType,
+                                discriminatorProperty);
+                        hasNextItem = true;
+                        resetEventState();
+                        return true;
+                    } catch (Exception parseEx) {
+                        System.err.println("Failed to parse final SSE event: " + parseEx.getMessage());
+                        resetEventState();
+                    }
+                }
+
+                endOfStream = true;
+                return false;
+
+            } catch (Exception e) {
+                System.err.println("Failed to parse SSE stream: " + e.getMessage());
+                endOfStream = true;
+                return false;
+            }
+        }
+
+        private void resetEventState() {
+            eventDataBuffer.setLength(0);
+            currentEventType = null;
+            currentEventId = null;
+            currentRetry = null;
+        }
+    }
 }
diff --git a/src/main/java/com/squareup/square/customers/AsyncRawCardsClient.java b/src/main/java/com/squareup/square/customers/AsyncRawCardsClient.java
index 24cf6ccf..2a5c323c 100644
--- a/src/main/java/com/squareup/square/customers/AsyncRawCardsClient.java
+++ b/src/main/java/com/squareup/square/customers/AsyncRawCardsClient.java
@@ -54,12 +54,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerCardResponse>> c
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCustomerCardResponse>> create(
             CreateCustomerCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
-                .addPathSegments("cards")
-                .build();
+                .addPathSegments("cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -68,7 +72,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerCardResponse>> c
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -120,15 +124,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCardResponse>> d
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCardResponse>> delete(
             DeleteCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("cards")
-                .addPathSegment(request.getCardId())
-                .build();
+                .addPathSegment(request.getCardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributeDefinitionsClient.java
index f17ae83b..e76675d6 100644
--- a/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributeDefinitionsClient.java
@@ -105,6 +105,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -194,10 +199,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCustomerCustomAttributeDefinitionResponse>> create(
             CreateCustomerCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/customers/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -206,7 +215,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -274,6 +283,11 @@ public CompletableFuture<SquareClientHttpResponse<GetCustomerCustomAttributeDefi
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -336,11 +350,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateCustomerCustomAttributeDefinitionResponse>> update(
             UpdateCustomerCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -349,7 +367,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -409,13 +427,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCustomAttributeDefinitionResponse>> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -488,10 +510,14 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpsertCustomerCustomAttri
      */
     public CompletableFuture<SquareClientHttpResponse<BatchUpsertCustomerCustomAttributesResponse>> batchUpsert(
             BatchUpsertCustomerCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/customers/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -500,7 +526,7 @@ public CompletableFuture<SquareClientHttpResponse<BatchUpsertCustomerCustomAttri
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributesClient.java b/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributesClient.java
index a0d965fa..8eb0c1c1 100644
--- a/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/customers/AsyncRawCustomAttributesClient.java
@@ -86,6 +86,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -181,6 +186,11 @@ public CompletableFuture<SquareClientHttpResponse<GetCustomerCustomAttributeResp
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -247,13 +257,17 @@ public CompletableFuture<SquareClientHttpResponse<UpsertCustomerCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertCustomerCustomAttributeResponse>> upsert(
             UpsertCustomerCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -262,7 +276,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertCustomerCustomAttributeR
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -322,15 +336,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteCustomerCustomAttributeResponse>> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/AsyncRawGroupsClient.java b/src/main/java/com/squareup/square/customers/AsyncRawGroupsClient.java
index 935285f9..32a8f818 100644
--- a/src/main/java/com/squareup/square/customers/AsyncRawGroupsClient.java
+++ b/src/main/java/com/squareup/square/customers/AsyncRawGroupsClient.java
@@ -91,6 +91,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomerGro
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -163,10 +168,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerGroupResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateCustomerGroupResponse>> create(
             CreateCustomerGroupRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/groups")
-                .build();
+                .addPathSegments("v2/customers/groups");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -175,7 +184,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateCustomerGroupResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -227,13 +236,17 @@ public CompletableFuture<SquareClientHttpResponse<GetCustomerGroupResponse>> get
      */
     public CompletableFuture<SquareClientHttpResponse<GetCustomerGroupResponse>> get(
             GetGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -284,11 +297,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerGroupResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateCustomerGroupResponse>> update(
             UpdateCustomerGroupRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -297,7 +314,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateCustomerGroupResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -350,13 +367,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteCustomerGroupResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteCustomerGroupResponse>> delete(
             DeleteGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -411,15 +432,19 @@ public CompletableFuture<SquareClientHttpResponse<AddGroupToCustomerResponse>> a
      */
     public CompletableFuture<SquareClientHttpResponse<AddGroupToCustomerResponse>> add(
             AddGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -475,15 +500,19 @@ public CompletableFuture<SquareClientHttpResponse<RemoveGroupFromCustomerRespons
      */
     public CompletableFuture<SquareClientHttpResponse<RemoveGroupFromCustomerResponse>> remove(
             RemoveGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/AsyncRawSegmentsClient.java b/src/main/java/com/squareup/square/customers/AsyncRawSegmentsClient.java
index f6433613..73b58d67 100644
--- a/src/main/java/com/squareup/square/customers/AsyncRawSegmentsClient.java
+++ b/src/main/java/com/squareup/square/customers/AsyncRawSegmentsClient.java
@@ -78,6 +78,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomerSeg
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -148,13 +153,17 @@ public CompletableFuture<SquareClientHttpResponse<GetCustomerSegmentResponse>> g
      */
     public CompletableFuture<SquareClientHttpResponse<GetCustomerSegmentResponse>> get(
             GetSegmentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/segments")
-                .addPathSegment(request.getSegmentId())
-                .build();
+                .addPathSegment(request.getSegmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/RawCardsClient.java b/src/main/java/com/squareup/square/customers/RawCardsClient.java
index 00c8ff52..bb0316c8 100644
--- a/src/main/java/com/squareup/square/customers/RawCardsClient.java
+++ b/src/main/java/com/squareup/square/customers/RawCardsClient.java
@@ -49,12 +49,16 @@ public SquareClientHttpResponse<CreateCustomerCardResponse> create(CreateCustome
      */
     public SquareClientHttpResponse<CreateCustomerCardResponse> create(
             CreateCustomerCardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
-                .addPathSegments("cards")
-                .build();
+                .addPathSegments("cards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -63,7 +67,7 @@ public SquareClientHttpResponse<CreateCustomerCardResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -101,15 +105,19 @@ public SquareClientHttpResponse<DeleteCustomerCardResponse> delete(DeleteCardsRe
      */
     public SquareClientHttpResponse<DeleteCustomerCardResponse> delete(
             DeleteCardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("cards")
-                .addPathSegment(request.getCardId())
-                .build();
+                .addPathSegment(request.getCardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/RawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/customers/RawCustomAttributeDefinitionsClient.java
index d10a3e31..1b6711ad 100644
--- a/src/main/java/com/squareup/square/customers/RawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/customers/RawCustomAttributeDefinitionsClient.java
@@ -99,6 +99,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttributeDefinition>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -166,10 +171,14 @@ public SquareClientHttpResponse<CreateCustomerCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<CreateCustomerCustomAttributeDefinitionResponse> create(
             CreateCustomerCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/customers/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -178,7 +187,7 @@ public SquareClientHttpResponse<CreateCustomerCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -232,6 +241,11 @@ public SquareClientHttpResponse<GetCustomerCustomAttributeDefinitionResponse> ge
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -280,11 +294,15 @@ public SquareClientHttpResponse<UpdateCustomerCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<UpdateCustomerCustomAttributeDefinitionResponse> update(
             UpdateCustomerCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -293,7 +311,7 @@ public SquareClientHttpResponse<UpdateCustomerCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -339,13 +357,17 @@ public SquareClientHttpResponse<DeleteCustomerCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<DeleteCustomerCustomAttributeDefinitionResponse> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -404,10 +426,14 @@ public SquareClientHttpResponse<BatchUpsertCustomerCustomAttributesResponse> bat
      */
     public SquareClientHttpResponse<BatchUpsertCustomerCustomAttributesResponse> batchUpsert(
             BatchUpsertCustomerCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/customers/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -416,7 +442,7 @@ public SquareClientHttpResponse<BatchUpsertCustomerCustomAttributesResponse> bat
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/customers/RawCustomAttributesClient.java b/src/main/java/com/squareup/square/customers/RawCustomAttributesClient.java
index 4a288a47..122068ea 100644
--- a/src/main/java/com/squareup/square/customers/RawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/customers/RawCustomAttributesClient.java
@@ -80,6 +80,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttribute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -154,6 +159,11 @@ public SquareClientHttpResponse<GetCustomerCustomAttributeResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -206,13 +216,17 @@ public SquareClientHttpResponse<UpsertCustomerCustomAttributeResponse> upsert(
      */
     public SquareClientHttpResponse<UpsertCustomerCustomAttributeResponse> upsert(
             UpsertCustomerCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -221,7 +235,7 @@ public SquareClientHttpResponse<UpsertCustomerCustomAttributeResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -267,15 +281,19 @@ public SquareClientHttpResponse<DeleteCustomerCustomAttributeResponse> delete(
      */
     public SquareClientHttpResponse<DeleteCustomerCustomAttributeResponse> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/RawGroupsClient.java b/src/main/java/com/squareup/square/customers/RawGroupsClient.java
index 36a7f5d6..2b3df982 100644
--- a/src/main/java/com/squareup/square/customers/RawGroupsClient.java
+++ b/src/main/java/com/squareup/square/customers/RawGroupsClient.java
@@ -84,6 +84,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomerGroup>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -135,10 +140,14 @@ public SquareClientHttpResponse<CreateCustomerGroupResponse> create(CreateCustom
      */
     public SquareClientHttpResponse<CreateCustomerGroupResponse> create(
             CreateCustomerGroupRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/customers/groups")
-                .build();
+                .addPathSegments("v2/customers/groups");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -147,7 +156,7 @@ public SquareClientHttpResponse<CreateCustomerGroupResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -185,13 +194,17 @@ public SquareClientHttpResponse<GetCustomerGroupResponse> get(GetGroupsRequest r
      */
     public SquareClientHttpResponse<GetCustomerGroupResponse> get(
             GetGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -228,11 +241,15 @@ public SquareClientHttpResponse<UpdateCustomerGroupResponse> update(UpdateCustom
      */
     public SquareClientHttpResponse<UpdateCustomerGroupResponse> update(
             UpdateCustomerGroupRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -241,7 +258,7 @@ public SquareClientHttpResponse<UpdateCustomerGroupResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -279,13 +296,17 @@ public SquareClientHttpResponse<DeleteCustomerGroupResponse> delete(DeleteGroups
      */
     public SquareClientHttpResponse<DeleteCustomerGroupResponse> delete(
             DeleteGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -326,15 +347,19 @@ public SquareClientHttpResponse<AddGroupToCustomerResponse> add(AddGroupsRequest
      */
     public SquareClientHttpResponse<AddGroupToCustomerResponse> add(
             AddGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -375,15 +400,19 @@ public SquareClientHttpResponse<RemoveGroupFromCustomerResponse> remove(RemoveGr
      */
     public SquareClientHttpResponse<RemoveGroupFromCustomerResponse> remove(
             RemoveGroupsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers")
                 .addPathSegment(request.getCustomerId())
                 .addPathSegments("groups")
-                .addPathSegment(request.getGroupId())
-                .build();
+                .addPathSegment(request.getGroupId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/RawSegmentsClient.java b/src/main/java/com/squareup/square/customers/RawSegmentsClient.java
index 814ceb9b..4f607837 100644
--- a/src/main/java/com/squareup/square/customers/RawSegmentsClient.java
+++ b/src/main/java/com/squareup/square/customers/RawSegmentsClient.java
@@ -71,6 +71,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomerSegment>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -120,13 +125,17 @@ public SquareClientHttpResponse<GetCustomerSegmentResponse> get(GetSegmentsReque
      */
     public SquareClientHttpResponse<GetCustomerSegmentResponse> get(
             GetSegmentsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/customers/segments")
-                .addPathSegment(request.getSegmentId())
-                .build();
+                .addPathSegment(request.getSegmentId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/customers/types/AddGroupsRequest.java b/src/main/java/com/squareup/square/customers/types/AddGroupsRequest.java
index 4fb9a7da..870958eb 100644
--- a/src/main/java/com/squareup/square/customers/types/AddGroupsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/AddGroupsRequest.java
@@ -94,6 +94,10 @@ public interface GroupIdStage {
 
     public interface _FinalStage {
         AddGroupsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage groupId(@NotNull String groupId) {
         public AddGroupsRequest build() {
             return new AddGroupsRequest(customerId, groupId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/BatchUpsertCustomerCustomAttributesRequest.java b/src/main/java/com/squareup/square/customers/types/BatchUpsertCustomerCustomAttributesRequest.java
index 76d956f3..30f80346 100644
--- a/src/main/java/com/squareup/square/customers/types/BatchUpsertCustomerCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/BatchUpsertCustomerCustomAttributesRequest.java
@@ -119,5 +119,15 @@ public Builder values(
         public BatchUpsertCustomerCustomAttributesRequest build() {
             return new BatchUpsertCustomerCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/CreateCustomerCardRequest.java b/src/main/java/com/squareup/square/customers/types/CreateCustomerCardRequest.java
index 80cbdf64..4849ffaf 100644
--- a/src/main/java/com/squareup/square/customers/types/CreateCustomerCardRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/CreateCustomerCardRequest.java
@@ -157,6 +157,10 @@ public interface CardNonceStage {
     public interface _FinalStage {
         CreateCustomerCardRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Address information for the card on file.</p>
          * <p><strong>NOTE:</strong> If a billing address is provided in the request, the
@@ -320,5 +324,17 @@ public CreateCustomerCardRequest build() {
             return new CreateCustomerCardRequest(
                     customerId, cardNonce, billingAddress, cardholderName, verificationToken, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/CreateCustomerCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/customers/types/CreateCustomerCustomAttributeDefinitionRequest.java
index b62120f8..de628645 100644
--- a/src/main/java/com/squareup/square/customers/types/CreateCustomerCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/CreateCustomerCustomAttributeDefinitionRequest.java
@@ -111,6 +111,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         CreateCustomerCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -192,5 +196,17 @@ public CreateCustomerCustomAttributeDefinitionRequest build() {
             return new CreateCustomerCustomAttributeDefinitionRequest(
                     customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/CreateCustomerGroupRequest.java b/src/main/java/com/squareup/square/customers/types/CreateCustomerGroupRequest.java
index 55fd909c..8614b5cf 100644
--- a/src/main/java/com/squareup/square/customers/types/CreateCustomerGroupRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/CreateCustomerGroupRequest.java
@@ -92,6 +92,10 @@ public interface GroupStage {
     public interface _FinalStage {
         CreateCustomerGroupRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The idempotency key for the request. For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
          */
@@ -154,5 +158,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateCustomerGroupRequest build() {
             return new CreateCustomerGroupRequest(idempotencyKey, group, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/DeleteCardsRequest.java b/src/main/java/com/squareup/square/customers/types/DeleteCardsRequest.java
index 9ca6ad6f..77724d74 100644
--- a/src/main/java/com/squareup/square/customers/types/DeleteCardsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/DeleteCardsRequest.java
@@ -94,6 +94,10 @@ public interface CardIdStage {
 
     public interface _FinalStage {
         DeleteCardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage cardId(@NotNull String cardId) {
         public DeleteCardsRequest build() {
             return new DeleteCardsRequest(customerId, cardId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributeDefinitionsRequest.java
index e4a5b7de..1dabfdad 100644
--- a/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributeDefinitionsRequest.java
@@ -77,6 +77,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributeDefinitionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributeDefinitionsRequest build() {
             return new DeleteCustomAttributeDefinitionsRequest(key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributesRequest.java b/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributesRequest.java
index 5a4cc8ce..515868a9 100644
--- a/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/DeleteCustomAttributesRequest.java
@@ -98,6 +98,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributesRequest build() {
             return new DeleteCustomAttributesRequest(customerId, key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/DeleteGroupsRequest.java b/src/main/java/com/squareup/square/customers/types/DeleteGroupsRequest.java
index 7b107915..50bd690d 100644
--- a/src/main/java/com/squareup/square/customers/types/DeleteGroupsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/DeleteGroupsRequest.java
@@ -76,6 +76,10 @@ public interface GroupIdStage {
 
     public interface _FinalStage {
         DeleteGroupsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage groupId(@NotNull String groupId) {
         public DeleteGroupsRequest build() {
             return new DeleteGroupsRequest(groupId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/GetCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/customers/types/GetCustomAttributeDefinitionsRequest.java
index f4e3141c..442a21e0 100644
--- a/src/main/java/com/squareup/square/customers/types/GetCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/GetCustomAttributeDefinitionsRequest.java
@@ -109,6 +109,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributeDefinitionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the custom attribute definition, which is used for strongly consistent
          * reads to guarantee that you receive the most up-to-date data. When included in the request,
@@ -203,5 +207,17 @@ public _FinalStage version(Optional<Integer> version) {
         public GetCustomAttributeDefinitionsRequest build() {
             return new GetCustomAttributeDefinitionsRequest(key, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/GetCustomAttributesRequest.java b/src/main/java/com/squareup/square/customers/types/GetCustomAttributesRequest.java
index 65b249a3..f8844c8d 100644
--- a/src/main/java/com/squareup/square/customers/types/GetCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/GetCustomAttributesRequest.java
@@ -157,6 +157,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates whether to return the <a href="entity:CustomAttributeDefinition">custom attribute definition</a> in the <code>definition</code> field of
          * the custom attribute. Set this parameter to <code>true</code> to get the name and description of the custom
@@ -324,5 +328,17 @@ public _FinalStage withDefinition(Optional<Boolean> withDefinition) {
         public GetCustomAttributesRequest build() {
             return new GetCustomAttributesRequest(customerId, key, withDefinition, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/GetGroupsRequest.java b/src/main/java/com/squareup/square/customers/types/GetGroupsRequest.java
index 02946b07..e2dd8f9a 100644
--- a/src/main/java/com/squareup/square/customers/types/GetGroupsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/GetGroupsRequest.java
@@ -76,6 +76,10 @@ public interface GroupIdStage {
 
     public interface _FinalStage {
         GetGroupsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage groupId(@NotNull String groupId) {
         public GetGroupsRequest build() {
             return new GetGroupsRequest(groupId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/GetSegmentsRequest.java b/src/main/java/com/squareup/square/customers/types/GetSegmentsRequest.java
index 58c55e0d..de4c3e2e 100644
--- a/src/main/java/com/squareup/square/customers/types/GetSegmentsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/GetSegmentsRequest.java
@@ -76,6 +76,10 @@ public interface SegmentIdStage {
 
     public interface _FinalStage {
         GetSegmentsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage segmentId(@NotNull String segmentId) {
         public GetSegmentsRequest build() {
             return new GetSegmentsRequest(segmentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/ListCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/customers/types/ListCustomAttributeDefinitionsRequest.java
index 1b0608ec..2009657e 100644
--- a/src/main/java/com/squareup/square/customers/types/ListCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/ListCustomAttributeDefinitionsRequest.java
@@ -178,5 +178,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListCustomAttributeDefinitionsRequest build() {
             return new ListCustomAttributeDefinitionsRequest(limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/ListCustomAttributesRequest.java b/src/main/java/com/squareup/square/customers/types/ListCustomAttributesRequest.java
index e85a6095..7b4e8e70 100644
--- a/src/main/java/com/squareup/square/customers/types/ListCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/ListCustomAttributesRequest.java
@@ -156,6 +156,10 @@ public interface CustomerIdStage {
     public interface _FinalStage {
         ListCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The maximum number of results to return in a single paged response. This limit is advisory.
          * The response might contain more or fewer results. The minimum value is 1 and the maximum value is 100.
@@ -356,5 +360,17 @@ public _FinalStage limit(Optional<Integer> limit) {
         public ListCustomAttributesRequest build() {
             return new ListCustomAttributesRequest(customerId, limit, cursor, withDefinitions, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/ListGroupsRequest.java b/src/main/java/com/squareup/square/customers/types/ListGroupsRequest.java
index a7b8623b..0fcca5e2 100644
--- a/src/main/java/com/squareup/square/customers/types/ListGroupsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/ListGroupsRequest.java
@@ -177,5 +177,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListGroupsRequest build() {
             return new ListGroupsRequest(cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/ListSegmentsRequest.java b/src/main/java/com/squareup/square/customers/types/ListSegmentsRequest.java
index 50eedf24..00dbea05 100644
--- a/src/main/java/com/squareup/square/customers/types/ListSegmentsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/ListSegmentsRequest.java
@@ -177,5 +177,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListSegmentsRequest build() {
             return new ListSegmentsRequest(cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/RemoveGroupsRequest.java b/src/main/java/com/squareup/square/customers/types/RemoveGroupsRequest.java
index 287f3ac5..07100751 100644
--- a/src/main/java/com/squareup/square/customers/types/RemoveGroupsRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/RemoveGroupsRequest.java
@@ -94,6 +94,10 @@ public interface GroupIdStage {
 
     public interface _FinalStage {
         RemoveGroupsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage groupId(@NotNull String groupId) {
         public RemoveGroupsRequest build() {
             return new RemoveGroupsRequest(customerId, groupId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/UpdateCustomerCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/customers/types/UpdateCustomerCustomAttributeDefinitionRequest.java
index 57b24847..828c6673 100644
--- a/src/main/java/com/squareup/square/customers/types/UpdateCustomerCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/UpdateCustomerCustomAttributeDefinitionRequest.java
@@ -155,6 +155,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         UpdateCustomerCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -282,5 +286,17 @@ public UpdateCustomerCustomAttributeDefinitionRequest build() {
             return new UpdateCustomerCustomAttributeDefinitionRequest(
                     key, customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/UpdateCustomerGroupRequest.java b/src/main/java/com/squareup/square/customers/types/UpdateCustomerGroupRequest.java
index 78375aec..194dd6b1 100644
--- a/src/main/java/com/squareup/square/customers/types/UpdateCustomerGroupRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/UpdateCustomerGroupRequest.java
@@ -95,6 +95,10 @@ public interface GroupStage {
 
     public interface _FinalStage {
         UpdateCustomerGroupRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage group(@NotNull CustomerGroup group) {
         public UpdateCustomerGroupRequest build() {
             return new UpdateCustomerGroupRequest(groupId, group, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/customers/types/UpsertCustomerCustomAttributeRequest.java b/src/main/java/com/squareup/square/customers/types/UpsertCustomerCustomAttributeRequest.java
index 1f217ca5..c44ec417 100644
--- a/src/main/java/com/squareup/square/customers/types/UpsertCustomerCustomAttributeRequest.java
+++ b/src/main/java/com/squareup/square/customers/types/UpsertCustomerCustomAttributeRequest.java
@@ -175,6 +175,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         UpsertCustomerCustomAttributeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -316,5 +320,17 @@ public UpsertCustomerCustomAttributeRequest build() {
             return new UpsertCustomerCustomAttributeRequest(
                     customerId, key, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/devices/AsyncRawCodesClient.java b/src/main/java/com/squareup/square/devices/AsyncRawCodesClient.java
index 0b3135c2..ad096140 100644
--- a/src/main/java/com/squareup/square/devices/AsyncRawCodesClient.java
+++ b/src/main/java/com/squareup/square/devices/AsyncRawCodesClient.java
@@ -90,6 +90,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<DeviceCode>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "status", request.getStatus().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -162,10 +167,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateDeviceCodeResponse>> cre
      */
     public CompletableFuture<SquareClientHttpResponse<CreateDeviceCodeResponse>> create(
             CreateDeviceCodeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/devices/codes")
-                .build();
+                .addPathSegments("v2/devices/codes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -174,7 +183,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateDeviceCodeResponse>> cre
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -225,13 +234,17 @@ public CompletableFuture<SquareClientHttpResponse<GetDeviceCodeResponse>> get(Ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetDeviceCodeResponse>> get(
             GetCodesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/devices/codes")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/devices/RawCodesClient.java b/src/main/java/com/squareup/square/devices/RawCodesClient.java
index 6092b3f3..febf8dea 100644
--- a/src/main/java/com/squareup/square/devices/RawCodesClient.java
+++ b/src/main/java/com/squareup/square/devices/RawCodesClient.java
@@ -84,6 +84,11 @@ public SquareClientHttpResponse<SyncPagingIterable<DeviceCode>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "status", request.getStatus().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -135,10 +140,14 @@ public SquareClientHttpResponse<CreateDeviceCodeResponse> create(CreateDeviceCod
      */
     public SquareClientHttpResponse<CreateDeviceCodeResponse> create(
             CreateDeviceCodeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/devices/codes")
-                .build();
+                .addPathSegments("v2/devices/codes");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -147,7 +156,7 @@ public SquareClientHttpResponse<CreateDeviceCodeResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -184,13 +193,17 @@ public SquareClientHttpResponse<GetDeviceCodeResponse> get(GetCodesRequest reque
      * Retrieves DeviceCode with the associated ID.
      */
     public SquareClientHttpResponse<GetDeviceCodeResponse> get(GetCodesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/devices/codes")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/devices/types/CreateDeviceCodeRequest.java b/src/main/java/com/squareup/square/devices/types/CreateDeviceCodeRequest.java
index 0597f248..dba45f97 100644
--- a/src/main/java/com/squareup/square/devices/types/CreateDeviceCodeRequest.java
+++ b/src/main/java/com/squareup/square/devices/types/CreateDeviceCodeRequest.java
@@ -100,6 +100,10 @@ public interface DeviceCodeStage {
 
     public interface _FinalStage {
         CreateDeviceCodeRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -152,5 +156,17 @@ public _FinalStage deviceCode(@NotNull DeviceCode deviceCode) {
         public CreateDeviceCodeRequest build() {
             return new CreateDeviceCodeRequest(idempotencyKey, deviceCode, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/devices/types/GetCodesRequest.java b/src/main/java/com/squareup/square/devices/types/GetCodesRequest.java
index 9e182a0e..afff0420 100644
--- a/src/main/java/com/squareup/square/devices/types/GetCodesRequest.java
+++ b/src/main/java/com/squareup/square/devices/types/GetCodesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetCodesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetCodesRequest build() {
             return new GetCodesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/devices/types/ListCodesRequest.java b/src/main/java/com/squareup/square/devices/types/ListCodesRequest.java
index a5e023d8..e95a19eb 100644
--- a/src/main/java/com/squareup/square/devices/types/ListCodesRequest.java
+++ b/src/main/java/com/squareup/square/devices/types/ListCodesRequest.java
@@ -283,5 +283,15 @@ public Builder status(Nullable<DeviceCodeStatus> status) {
         public ListCodesRequest build() {
             return new ListCodesRequest(cursor, locationId, productType, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/disputes/AsyncRawEvidenceClient.java b/src/main/java/com/squareup/square/disputes/AsyncRawEvidenceClient.java
index 5c100178..0f5076a2 100644
--- a/src/main/java/com/squareup/square/disputes/AsyncRawEvidenceClient.java
+++ b/src/main/java/com/squareup/square/disputes/AsyncRawEvidenceClient.java
@@ -63,6 +63,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<DisputeEvid
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -135,15 +140,19 @@ public CompletableFuture<SquareClientHttpResponse<GetDisputeEvidenceResponse>> g
      */
     public CompletableFuture<SquareClientHttpResponse<GetDisputeEvidenceResponse>> get(
             GetEvidenceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
                 .addPathSegments("evidence")
-                .addPathSegment(request.getEvidenceId())
-                .build();
+                .addPathSegment(request.getEvidenceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -197,15 +206,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteDisputeEvidenceResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteDisputeEvidenceResponse>> delete(
             DeleteEvidenceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
                 .addPathSegments("evidence")
-                .addPathSegment(request.getEvidenceId())
-                .build();
+                .addPathSegment(request.getEvidenceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/disputes/RawEvidenceClient.java b/src/main/java/com/squareup/square/disputes/RawEvidenceClient.java
index 7b1aebda..5d4d9eb9 100644
--- a/src/main/java/com/squareup/square/disputes/RawEvidenceClient.java
+++ b/src/main/java/com/squareup/square/disputes/RawEvidenceClient.java
@@ -57,6 +57,11 @@ public SquareClientHttpResponse<SyncPagingIterable<DisputeEvidence>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -108,15 +113,19 @@ public SquareClientHttpResponse<GetDisputeEvidenceResponse> get(GetEvidenceReque
      */
     public SquareClientHttpResponse<GetDisputeEvidenceResponse> get(
             GetEvidenceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
                 .addPathSegments("evidence")
-                .addPathSegment(request.getEvidenceId())
-                .build();
+                .addPathSegment(request.getEvidenceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -155,15 +164,19 @@ public SquareClientHttpResponse<DeleteDisputeEvidenceResponse> delete(DeleteEvid
      */
     public SquareClientHttpResponse<DeleteDisputeEvidenceResponse> delete(
             DeleteEvidenceRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/disputes")
                 .addPathSegment(request.getDisputeId())
                 .addPathSegments("evidence")
-                .addPathSegment(request.getEvidenceId())
-                .build();
+                .addPathSegment(request.getEvidenceId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/disputes/types/DeleteEvidenceRequest.java b/src/main/java/com/squareup/square/disputes/types/DeleteEvidenceRequest.java
index c8ccec4b..cbd69c69 100644
--- a/src/main/java/com/squareup/square/disputes/types/DeleteEvidenceRequest.java
+++ b/src/main/java/com/squareup/square/disputes/types/DeleteEvidenceRequest.java
@@ -94,6 +94,10 @@ public interface EvidenceIdStage {
 
     public interface _FinalStage {
         DeleteEvidenceRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage evidenceId(@NotNull String evidenceId) {
         public DeleteEvidenceRequest build() {
             return new DeleteEvidenceRequest(disputeId, evidenceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/disputes/types/GetEvidenceRequest.java b/src/main/java/com/squareup/square/disputes/types/GetEvidenceRequest.java
index 68abec7c..c2e812c5 100644
--- a/src/main/java/com/squareup/square/disputes/types/GetEvidenceRequest.java
+++ b/src/main/java/com/squareup/square/disputes/types/GetEvidenceRequest.java
@@ -94,6 +94,10 @@ public interface EvidenceIdStage {
 
     public interface _FinalStage {
         GetEvidenceRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage evidenceId(@NotNull String evidenceId) {
         public GetEvidenceRequest build() {
             return new GetEvidenceRequest(disputeId, evidenceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/disputes/types/ListEvidenceRequest.java b/src/main/java/com/squareup/square/disputes/types/ListEvidenceRequest.java
index 911b96fa..f76d1813 100644
--- a/src/main/java/com/squareup/square/disputes/types/ListEvidenceRequest.java
+++ b/src/main/java/com/squareup/square/disputes/types/ListEvidenceRequest.java
@@ -104,6 +104,10 @@ public interface DisputeIdStage {
     public interface _FinalStage {
         ListEvidenceRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A pagination cursor returned by a previous call to this endpoint.
          * Provide this cursor to retrieve the next set of results for the original query.
@@ -192,5 +196,17 @@ public _FinalStage cursor(Optional<String> cursor) {
         public ListEvidenceRequest build() {
             return new ListEvidenceRequest(disputeId, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/giftcards/AsyncRawActivitiesClient.java b/src/main/java/com/squareup/square/giftcards/AsyncRawActivitiesClient.java
index b14e3f7f..560155e8 100644
--- a/src/main/java/com/squareup/square/giftcards/AsyncRawActivitiesClient.java
+++ b/src/main/java/com/squareup/square/giftcards/AsyncRawActivitiesClient.java
@@ -117,6 +117,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<GiftCardAct
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_order", request.getSortOrder().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -190,10 +195,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateGiftCardActivityResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CreateGiftCardActivityResponse>> create(
             CreateGiftCardActivityRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/activities")
-                .build();
+                .addPathSegments("v2/gift-cards/activities");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -202,7 +211,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateGiftCardActivityResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/giftcards/RawActivitiesClient.java b/src/main/java/com/squareup/square/giftcards/RawActivitiesClient.java
index 792fd7e2..18656c8d 100644
--- a/src/main/java/com/squareup/square/giftcards/RawActivitiesClient.java
+++ b/src/main/java/com/squareup/square/giftcards/RawActivitiesClient.java
@@ -110,6 +110,11 @@ public SquareClientHttpResponse<SyncPagingIterable<GiftCardActivity>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "sort_order", request.getSortOrder().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -162,10 +167,14 @@ public SquareClientHttpResponse<CreateGiftCardActivityResponse> create(CreateGif
      */
     public SquareClientHttpResponse<CreateGiftCardActivityResponse> create(
             CreateGiftCardActivityRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/gift-cards/activities")
-                .build();
+                .addPathSegments("v2/gift-cards/activities");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -174,7 +183,7 @@ public SquareClientHttpResponse<CreateGiftCardActivityResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/giftcards/types/CreateGiftCardActivityRequest.java b/src/main/java/com/squareup/square/giftcards/types/CreateGiftCardActivityRequest.java
index 91a446dc..0b5d820c 100644
--- a/src/main/java/com/squareup/square/giftcards/types/CreateGiftCardActivityRequest.java
+++ b/src/main/java/com/squareup/square/giftcards/types/CreateGiftCardActivityRequest.java
@@ -98,6 +98,10 @@ public interface GiftCardActivityStage {
 
     public interface _FinalStage {
         CreateGiftCardActivityRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -148,5 +152,17 @@ public _FinalStage giftCardActivity(@NotNull GiftCardActivity giftCardActivity)
         public CreateGiftCardActivityRequest build() {
             return new CreateGiftCardActivityRequest(idempotencyKey, giftCardActivity, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/giftcards/types/ListActivitiesRequest.java b/src/main/java/com/squareup/square/giftcards/types/ListActivitiesRequest.java
index e57a2713..5530d466 100644
--- a/src/main/java/com/squareup/square/giftcards/types/ListActivitiesRequest.java
+++ b/src/main/java/com/squareup/square/giftcards/types/ListActivitiesRequest.java
@@ -511,5 +511,15 @@ public ListActivitiesRequest build() {
             return new ListActivitiesRequest(
                     giftCardId, type, locationId, beginTime, endTime, limit, cursor, sortOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/AsyncRawBreakTypesClient.java b/src/main/java/com/squareup/square/labor/AsyncRawBreakTypesClient.java
index 2a72ec3b..b246c2e2 100644
--- a/src/main/java/com/squareup/square/labor/AsyncRawBreakTypesClient.java
+++ b/src/main/java/com/squareup/square/labor/AsyncRawBreakTypesClient.java
@@ -91,6 +91,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<BreakType>>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -183,10 +188,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateBreakTypeResponse>> crea
      */
     public CompletableFuture<SquareClientHttpResponse<CreateBreakTypeResponse>> create(
             CreateBreakTypeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/break-types")
-                .build();
+                .addPathSegments("v2/labor/break-types");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -195,7 +204,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateBreakTypeResponse>> crea
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -246,13 +255,17 @@ public CompletableFuture<SquareClientHttpResponse<GetBreakTypeResponse>> get(Get
      */
     public CompletableFuture<SquareClientHttpResponse<GetBreakTypeResponse>> get(
             GetBreakTypesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -302,11 +315,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBreakTypeResponse>> upda
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateBreakTypeResponse>> update(
             UpdateBreakTypeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -315,7 +332,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateBreakTypeResponse>> upda
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -369,13 +386,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteBreakTypeResponse>> dele
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteBreakTypeResponse>> delete(
             DeleteBreakTypesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/AsyncRawEmployeeWagesClient.java b/src/main/java/com/squareup/square/labor/AsyncRawEmployeeWagesClient.java
index 1173646f..5d86360e 100644
--- a/src/main/java/com/squareup/square/labor/AsyncRawEmployeeWagesClient.java
+++ b/src/main/java/com/squareup/square/labor/AsyncRawEmployeeWagesClient.java
@@ -82,6 +82,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<EmployeeWag
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -152,13 +157,17 @@ public CompletableFuture<SquareClientHttpResponse<GetEmployeeWageResponse>> get(
      */
     public CompletableFuture<SquareClientHttpResponse<GetEmployeeWageResponse>> get(
             GetEmployeeWagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/employee-wages")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/AsyncRawShiftsClient.java b/src/main/java/com/squareup/square/labor/AsyncRawShiftsClient.java
index 1f8e00b2..757dfe13 100644
--- a/src/main/java/com/squareup/square/labor/AsyncRawShiftsClient.java
+++ b/src/main/java/com/squareup/square/labor/AsyncRawShiftsClient.java
@@ -89,10 +89,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateShiftResponse>> create(C
      */
     public CompletableFuture<SquareClientHttpResponse<CreateShiftResponse>> create(
             CreateShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/shifts")
-                .build();
+                .addPathSegments("v2/labor/shifts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -101,7 +105,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateShiftResponse>> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -230,10 +234,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchShiftsResponse>> search(
      */
     public CompletableFuture<SquareClientHttpResponse<SearchShiftsResponse>> search(
             SearchShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/shifts/search")
-                .build();
+                .addPathSegments("v2/labor/shifts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -242,7 +250,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchShiftsResponse>> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -293,13 +301,17 @@ public CompletableFuture<SquareClientHttpResponse<GetShiftResponse>> get(GetShif
      */
     public CompletableFuture<SquareClientHttpResponse<GetShiftResponse>> get(
             GetShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -357,11 +369,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateShiftResponse>> update(U
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateShiftResponse>> update(
             UpdateShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -370,7 +386,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateShiftResponse>> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -421,13 +437,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteShiftResponse>> delete(D
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteShiftResponse>> delete(
             DeleteShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/AsyncRawTeamMemberWagesClient.java b/src/main/java/com/squareup/square/labor/AsyncRawTeamMemberWagesClient.java
index f64ec055..4da0f4a5 100644
--- a/src/main/java/com/squareup/square/labor/AsyncRawTeamMemberWagesClient.java
+++ b/src/main/java/com/squareup/square/labor/AsyncRawTeamMemberWagesClient.java
@@ -82,6 +82,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<TeamMemberW
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -153,13 +158,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTeamMemberWageResponse>> ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetTeamMemberWageResponse>> get(
             GetTeamMemberWagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/team-member-wages")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/AsyncRawWorkweekConfigsClient.java b/src/main/java/com/squareup/square/labor/AsyncRawWorkweekConfigsClient.java
index aedb5311..d8b6ef95 100644
--- a/src/main/java/com/squareup/square/labor/AsyncRawWorkweekConfigsClient.java
+++ b/src/main/java/com/squareup/square/labor/AsyncRawWorkweekConfigsClient.java
@@ -81,6 +81,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<WorkweekCon
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -152,11 +157,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWorkweekConfigResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateWorkweekConfigResponse>> get(
             UpdateWorkweekConfigRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/workweek-configs")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -165,7 +174,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWorkweekConfigResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/labor/RawBreakTypesClient.java b/src/main/java/com/squareup/square/labor/RawBreakTypesClient.java
index c4eeb41c..0bb98324 100644
--- a/src/main/java/com/squareup/square/labor/RawBreakTypesClient.java
+++ b/src/main/java/com/squareup/square/labor/RawBreakTypesClient.java
@@ -84,6 +84,11 @@ public SquareClientHttpResponse<SyncPagingIterable<BreakType>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -156,10 +161,14 @@ public SquareClientHttpResponse<CreateBreakTypeResponse> create(CreateBreakTypeR
      */
     public SquareClientHttpResponse<CreateBreakTypeResponse> create(
             CreateBreakTypeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/break-types")
-                .build();
+                .addPathSegments("v2/labor/break-types");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -168,7 +177,7 @@ public SquareClientHttpResponse<CreateBreakTypeResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -206,13 +215,17 @@ public SquareClientHttpResponse<GetBreakTypeResponse> get(GetBreakTypesRequest r
      */
     public SquareClientHttpResponse<GetBreakTypeResponse> get(
             GetBreakTypesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -248,11 +261,15 @@ public SquareClientHttpResponse<UpdateBreakTypeResponse> update(UpdateBreakTypeR
      */
     public SquareClientHttpResponse<UpdateBreakTypeResponse> update(
             UpdateBreakTypeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -261,7 +278,7 @@ public SquareClientHttpResponse<UpdateBreakTypeResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -301,13 +318,17 @@ public SquareClientHttpResponse<DeleteBreakTypeResponse> delete(DeleteBreakTypes
      */
     public SquareClientHttpResponse<DeleteBreakTypeResponse> delete(
             DeleteBreakTypesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/break-types")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/RawEmployeeWagesClient.java b/src/main/java/com/squareup/square/labor/RawEmployeeWagesClient.java
index e5e1699d..a7bf1d76 100644
--- a/src/main/java/com/squareup/square/labor/RawEmployeeWagesClient.java
+++ b/src/main/java/com/squareup/square/labor/RawEmployeeWagesClient.java
@@ -75,6 +75,11 @@ public SquareClientHttpResponse<SyncPagingIterable<EmployeeWage>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -124,13 +129,17 @@ public SquareClientHttpResponse<GetEmployeeWageResponse> get(GetEmployeeWagesReq
      */
     public SquareClientHttpResponse<GetEmployeeWageResponse> get(
             GetEmployeeWagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/employee-wages")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/RawShiftsClient.java b/src/main/java/com/squareup/square/labor/RawShiftsClient.java
index 7c875aff..021fc789 100644
--- a/src/main/java/com/squareup/square/labor/RawShiftsClient.java
+++ b/src/main/java/com/squareup/square/labor/RawShiftsClient.java
@@ -85,10 +85,14 @@ public SquareClientHttpResponse<CreateShiftResponse> create(CreateShiftRequest r
      */
     public SquareClientHttpResponse<CreateShiftResponse> create(
             CreateShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/shifts")
-                .build();
+                .addPathSegments("v2/labor/shifts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -97,7 +101,7 @@ public SquareClientHttpResponse<CreateShiftResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -212,10 +216,14 @@ public SquareClientHttpResponse<SearchShiftsResponse> search(SearchShiftsRequest
      */
     public SquareClientHttpResponse<SearchShiftsResponse> search(
             SearchShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/labor/shifts/search")
-                .build();
+                .addPathSegments("v2/labor/shifts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -224,7 +232,7 @@ public SquareClientHttpResponse<SearchShiftsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -260,13 +268,17 @@ public SquareClientHttpResponse<GetShiftResponse> get(GetShiftsRequest request)
      * Returns a single <code>Shift</code> specified by <code>id</code>.
      */
     public SquareClientHttpResponse<GetShiftResponse> get(GetShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -310,11 +322,15 @@ public SquareClientHttpResponse<UpdateShiftResponse> update(UpdateShiftRequest r
      */
     public SquareClientHttpResponse<UpdateShiftResponse> update(
             UpdateShiftRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -323,7 +339,7 @@ public SquareClientHttpResponse<UpdateShiftResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -360,13 +376,17 @@ public SquareClientHttpResponse<DeleteShiftResponse> delete(DeleteShiftsRequest
      */
     public SquareClientHttpResponse<DeleteShiftResponse> delete(
             DeleteShiftsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/shifts")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/RawTeamMemberWagesClient.java b/src/main/java/com/squareup/square/labor/RawTeamMemberWagesClient.java
index 4ddea344..856bcfaf 100644
--- a/src/main/java/com/squareup/square/labor/RawTeamMemberWagesClient.java
+++ b/src/main/java/com/squareup/square/labor/RawTeamMemberWagesClient.java
@@ -75,6 +75,11 @@ public SquareClientHttpResponse<SyncPagingIterable<TeamMemberWage>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -125,13 +130,17 @@ public SquareClientHttpResponse<GetTeamMemberWageResponse> get(GetTeamMemberWage
      */
     public SquareClientHttpResponse<GetTeamMemberWageResponse> get(
             GetTeamMemberWagesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/team-member-wages")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/labor/RawWorkweekConfigsClient.java b/src/main/java/com/squareup/square/labor/RawWorkweekConfigsClient.java
index 31fb8b29..b60be8c2 100644
--- a/src/main/java/com/squareup/square/labor/RawWorkweekConfigsClient.java
+++ b/src/main/java/com/squareup/square/labor/RawWorkweekConfigsClient.java
@@ -74,6 +74,11 @@ public SquareClientHttpResponse<SyncPagingIterable<WorkweekConfig>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -124,11 +129,15 @@ public SquareClientHttpResponse<UpdateWorkweekConfigResponse> get(UpdateWorkweek
      */
     public SquareClientHttpResponse<UpdateWorkweekConfigResponse> get(
             UpdateWorkweekConfigRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/labor/workweek-configs")
-                .addPathSegment(request.getId())
-                .build();
+                .addPathSegment(request.getId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -137,7 +146,7 @@ public SquareClientHttpResponse<UpdateWorkweekConfigResponse> get(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/labor/types/CreateBreakTypeRequest.java b/src/main/java/com/squareup/square/labor/types/CreateBreakTypeRequest.java
index d1894ce3..3dd44829 100644
--- a/src/main/java/com/squareup/square/labor/types/CreateBreakTypeRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/CreateBreakTypeRequest.java
@@ -92,6 +92,10 @@ public interface BreakTypeStage {
     public interface _FinalStage {
         CreateBreakTypeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string value to ensure the idempotency of the operation.</p>
          */
@@ -154,5 +158,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateBreakTypeRequest build() {
             return new CreateBreakTypeRequest(idempotencyKey, breakType, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/CreateShiftRequest.java b/src/main/java/com/squareup/square/labor/types/CreateShiftRequest.java
index f3e47f1a..e48160d5 100644
--- a/src/main/java/com/squareup/square/labor/types/CreateShiftRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/CreateShiftRequest.java
@@ -91,6 +91,10 @@ public interface ShiftStage {
     public interface _FinalStage {
         CreateShiftRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string value to ensure the idempotency of the operation.</p>
          */
@@ -153,5 +157,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateShiftRequest build() {
             return new CreateShiftRequest(idempotencyKey, shift, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/DeleteBreakTypesRequest.java b/src/main/java/com/squareup/square/labor/types/DeleteBreakTypesRequest.java
index f55953e4..5d00ffe1 100644
--- a/src/main/java/com/squareup/square/labor/types/DeleteBreakTypesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/DeleteBreakTypesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         DeleteBreakTypesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public DeleteBreakTypesRequest build() {
             return new DeleteBreakTypesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/DeleteShiftsRequest.java b/src/main/java/com/squareup/square/labor/types/DeleteShiftsRequest.java
index e63c5bfb..c91cce87 100644
--- a/src/main/java/com/squareup/square/labor/types/DeleteShiftsRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/DeleteShiftsRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         DeleteShiftsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public DeleteShiftsRequest build() {
             return new DeleteShiftsRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/GetBreakTypesRequest.java b/src/main/java/com/squareup/square/labor/types/GetBreakTypesRequest.java
index 4322ae3a..7d32769e 100644
--- a/src/main/java/com/squareup/square/labor/types/GetBreakTypesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/GetBreakTypesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetBreakTypesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetBreakTypesRequest build() {
             return new GetBreakTypesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/GetEmployeeWagesRequest.java b/src/main/java/com/squareup/square/labor/types/GetEmployeeWagesRequest.java
index e5e78367..ed6be12a 100644
--- a/src/main/java/com/squareup/square/labor/types/GetEmployeeWagesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/GetEmployeeWagesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetEmployeeWagesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetEmployeeWagesRequest build() {
             return new GetEmployeeWagesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/GetShiftsRequest.java b/src/main/java/com/squareup/square/labor/types/GetShiftsRequest.java
index d9e65af4..d8e46544 100644
--- a/src/main/java/com/squareup/square/labor/types/GetShiftsRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/GetShiftsRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetShiftsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetShiftsRequest build() {
             return new GetShiftsRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/GetTeamMemberWagesRequest.java b/src/main/java/com/squareup/square/labor/types/GetTeamMemberWagesRequest.java
index 5d735d3b..8b583e76 100644
--- a/src/main/java/com/squareup/square/labor/types/GetTeamMemberWagesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/GetTeamMemberWagesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetTeamMemberWagesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetTeamMemberWagesRequest build() {
             return new GetTeamMemberWagesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/ListBreakTypesRequest.java b/src/main/java/com/squareup/square/labor/types/ListBreakTypesRequest.java
index 3a881fbc..53c1ec58 100644
--- a/src/main/java/com/squareup/square/labor/types/ListBreakTypesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/ListBreakTypesRequest.java
@@ -224,5 +224,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListBreakTypesRequest build() {
             return new ListBreakTypesRequest(locationId, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/ListEmployeeWagesRequest.java b/src/main/java/com/squareup/square/labor/types/ListEmployeeWagesRequest.java
index fd0b1092..18b8e4c0 100644
--- a/src/main/java/com/squareup/square/labor/types/ListEmployeeWagesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/ListEmployeeWagesRequest.java
@@ -222,5 +222,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListEmployeeWagesRequest build() {
             return new ListEmployeeWagesRequest(employeeId, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/ListTeamMemberWagesRequest.java b/src/main/java/com/squareup/square/labor/types/ListTeamMemberWagesRequest.java
index f3c8fe67..94095cb5 100644
--- a/src/main/java/com/squareup/square/labor/types/ListTeamMemberWagesRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/ListTeamMemberWagesRequest.java
@@ -224,5 +224,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListTeamMemberWagesRequest build() {
             return new ListTeamMemberWagesRequest(teamMemberId, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/ListWorkweekConfigsRequest.java b/src/main/java/com/squareup/square/labor/types/ListWorkweekConfigsRequest.java
index 6078e9e2..bfba0926 100644
--- a/src/main/java/com/squareup/square/labor/types/ListWorkweekConfigsRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/ListWorkweekConfigsRequest.java
@@ -169,5 +169,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListWorkweekConfigsRequest build() {
             return new ListWorkweekConfigsRequest(limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/SearchShiftsRequest.java b/src/main/java/com/squareup/square/labor/types/SearchShiftsRequest.java
index ee71d179..44eddd6d 100644
--- a/src/main/java/com/squareup/square/labor/types/SearchShiftsRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/SearchShiftsRequest.java
@@ -158,5 +158,15 @@ public Builder cursor(String cursor) {
         public SearchShiftsRequest build() {
             return new SearchShiftsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/UpdateBreakTypeRequest.java b/src/main/java/com/squareup/square/labor/types/UpdateBreakTypeRequest.java
index 840b4aa2..1f77bd86 100644
--- a/src/main/java/com/squareup/square/labor/types/UpdateBreakTypeRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/UpdateBreakTypeRequest.java
@@ -95,6 +95,10 @@ public interface BreakTypeStage {
 
     public interface _FinalStage {
         UpdateBreakTypeRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage breakType(@NotNull BreakType breakType) {
         public UpdateBreakTypeRequest build() {
             return new UpdateBreakTypeRequest(id, breakType, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/UpdateShiftRequest.java b/src/main/java/com/squareup/square/labor/types/UpdateShiftRequest.java
index 70d37c81..83e666c2 100644
--- a/src/main/java/com/squareup/square/labor/types/UpdateShiftRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/UpdateShiftRequest.java
@@ -95,6 +95,10 @@ public interface ShiftStage {
 
     public interface _FinalStage {
         UpdateShiftRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage shift(@NotNull Shift shift) {
         public UpdateShiftRequest build() {
             return new UpdateShiftRequest(id, shift, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/labor/types/UpdateWorkweekConfigRequest.java b/src/main/java/com/squareup/square/labor/types/UpdateWorkweekConfigRequest.java
index c53147d4..f45f419d 100644
--- a/src/main/java/com/squareup/square/labor/types/UpdateWorkweekConfigRequest.java
+++ b/src/main/java/com/squareup/square/labor/types/UpdateWorkweekConfigRequest.java
@@ -96,6 +96,10 @@ public interface WorkweekConfigStage {
 
     public interface _FinalStage {
         UpdateWorkweekConfigRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -144,5 +148,17 @@ public _FinalStage workweekConfig(@NotNull WorkweekConfig workweekConfig) {
         public UpdateWorkweekConfigRequest build() {
             return new UpdateWorkweekConfigRequest(id, workweekConfig, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributeDefinitionsClient.java
index 543b2857..03c305fc 100644
--- a/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributeDefinitionsClient.java
@@ -103,6 +103,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -188,10 +193,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateLocationCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<CreateLocationCustomAttributeDefinitionResponse>> create(
             CreateLocationCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/locations/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -200,7 +209,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateLocationCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -266,6 +275,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveLocationCustomAttribut
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -326,11 +340,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateLocationCustomAttributeDefinitionResponse>> update(
             UpdateLocationCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -339,7 +357,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateLocationCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -399,13 +417,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteLocationCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteLocationCustomAttributeDefinitionResponse>> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributesClient.java b/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributesClient.java
index 5631cef8..5f956b7d 100644
--- a/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/locations/AsyncRawCustomAttributesClient.java
@@ -67,10 +67,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteLocationCustomAttrib
      */
     public CompletableFuture<SquareClientHttpResponse<BulkDeleteLocationCustomAttributesResponse>> batchDelete(
             BulkDeleteLocationCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/locations/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -79,7 +83,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteLocationCustomAttrib
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -151,10 +155,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertLocationCustomAttrib
      */
     public CompletableFuture<SquareClientHttpResponse<BulkUpsertLocationCustomAttributesResponse>> batchUpsert(
             BulkUpsertLocationCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/locations/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -163,7 +171,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertLocationCustomAttrib
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -248,6 +256,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -341,6 +354,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveLocationCustomAttribut
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -405,13 +423,17 @@ public CompletableFuture<SquareClientHttpResponse<UpsertLocationCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertLocationCustomAttributeResponse>> upsert(
             UpsertLocationCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -420,7 +442,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertLocationCustomAttributeR
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -478,15 +500,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteLocationCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteLocationCustomAttributeResponse>> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/AsyncRawTransactionsClient.java b/src/main/java/com/squareup/square/locations/AsyncRawTransactionsClient.java
index da07e208..e1539f21 100644
--- a/src/main/java/com/squareup/square/locations/AsyncRawTransactionsClient.java
+++ b/src/main/java/com/squareup/square/locations/AsyncRawTransactionsClient.java
@@ -77,6 +77,11 @@ public CompletableFuture<SquareClientHttpResponse<ListTransactionsResponse>> lis
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -128,15 +133,19 @@ public CompletableFuture<SquareClientHttpResponse<GetTransactionResponse>> get(G
      */
     public CompletableFuture<SquareClientHttpResponse<GetTransactionResponse>> get(
             GetTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
-                .addPathSegment(request.getTransactionId())
-                .build();
+                .addPathSegment(request.getTransactionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -193,16 +202,20 @@ public CompletableFuture<SquareClientHttpResponse<CaptureTransactionResponse>> c
      */
     public CompletableFuture<SquareClientHttpResponse<CaptureTransactionResponse>> capture(
             CaptureTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
                 .addPathSegment(request.getTransactionId())
-                .addPathSegments("capture")
-                .build();
+                .addPathSegments("capture");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -259,16 +272,20 @@ public CompletableFuture<SquareClientHttpResponse<VoidTransactionResponse>> void
      */
     public CompletableFuture<SquareClientHttpResponse<VoidTransactionResponse>> void_(
             VoidTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
                 .addPathSegment(request.getTransactionId())
-                .addPathSegments("void")
-                .build();
+                .addPathSegments("void");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/RawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/locations/RawCustomAttributeDefinitionsClient.java
index 4d77efba..23855c53 100644
--- a/src/main/java/com/squareup/square/locations/RawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/locations/RawCustomAttributeDefinitionsClient.java
@@ -97,6 +97,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttributeDefinition>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -160,10 +165,14 @@ public SquareClientHttpResponse<CreateLocationCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<CreateLocationCustomAttributeDefinitionResponse> create(
             CreateLocationCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/locations/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -172,7 +181,7 @@ public SquareClientHttpResponse<CreateLocationCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -224,6 +233,11 @@ public SquareClientHttpResponse<RetrieveLocationCustomAttributeDefinitionRespons
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -270,11 +284,15 @@ public SquareClientHttpResponse<UpdateLocationCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<UpdateLocationCustomAttributeDefinitionResponse> update(
             UpdateLocationCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -283,7 +301,7 @@ public SquareClientHttpResponse<UpdateLocationCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -329,13 +347,17 @@ public SquareClientHttpResponse<DeleteLocationCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<DeleteLocationCustomAttributeDefinitionResponse> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/RawCustomAttributesClient.java b/src/main/java/com/squareup/square/locations/RawCustomAttributesClient.java
index f6053b8d..61ca00ee 100644
--- a/src/main/java/com/squareup/square/locations/RawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/locations/RawCustomAttributesClient.java
@@ -62,10 +62,14 @@ public SquareClientHttpResponse<BulkDeleteLocationCustomAttributesResponse> batc
      */
     public SquareClientHttpResponse<BulkDeleteLocationCustomAttributesResponse> batchDelete(
             BulkDeleteLocationCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/locations/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -74,7 +78,7 @@ public SquareClientHttpResponse<BulkDeleteLocationCustomAttributesResponse> batc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -132,10 +136,14 @@ public SquareClientHttpResponse<BulkUpsertLocationCustomAttributesResponse> batc
      */
     public SquareClientHttpResponse<BulkUpsertLocationCustomAttributesResponse> batchUpsert(
             BulkUpsertLocationCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/locations/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/locations/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -144,7 +152,7 @@ public SquareClientHttpResponse<BulkUpsertLocationCustomAttributesResponse> batc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -214,6 +222,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttribute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -286,6 +299,11 @@ public SquareClientHttpResponse<RetrieveLocationCustomAttributeResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -336,13 +354,17 @@ public SquareClientHttpResponse<UpsertLocationCustomAttributeResponse> upsert(
      */
     public SquareClientHttpResponse<UpsertLocationCustomAttributeResponse> upsert(
             UpsertLocationCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -351,7 +373,7 @@ public SquareClientHttpResponse<UpsertLocationCustomAttributeResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -395,15 +417,19 @@ public SquareClientHttpResponse<DeleteLocationCustomAttributeResponse> delete(
      */
     public SquareClientHttpResponse<DeleteLocationCustomAttributeResponse> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/RawTransactionsClient.java b/src/main/java/com/squareup/square/locations/RawTransactionsClient.java
index bcd6ee37..b7a4968a 100644
--- a/src/main/java/com/squareup/square/locations/RawTransactionsClient.java
+++ b/src/main/java/com/squareup/square/locations/RawTransactionsClient.java
@@ -73,6 +73,11 @@ public SquareClientHttpResponse<ListTransactionsResponse> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -111,15 +116,19 @@ public SquareClientHttpResponse<GetTransactionResponse> get(GetTransactionsReque
      */
     public SquareClientHttpResponse<GetTransactionResponse> get(
             GetTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
-                .addPathSegment(request.getTransactionId())
-                .build();
+                .addPathSegment(request.getTransactionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -162,16 +171,20 @@ public SquareClientHttpResponse<CaptureTransactionResponse> capture(CaptureTrans
      */
     public SquareClientHttpResponse<CaptureTransactionResponse> capture(
             CaptureTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
                 .addPathSegment(request.getTransactionId())
-                .addPathSegments("capture")
-                .build();
+                .addPathSegments("capture");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -214,16 +227,20 @@ public SquareClientHttpResponse<VoidTransactionResponse> void_(VoidTransactionsR
      */
     public SquareClientHttpResponse<VoidTransactionResponse> void_(
             VoidTransactionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/locations")
                 .addPathSegment(request.getLocationId())
                 .addPathSegments("transactions")
                 .addPathSegment(request.getTransactionId())
-                .addPathSegments("void")
-                .build();
+                .addPathSegments("void");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/locations/types/BulkDeleteLocationCustomAttributesRequest.java b/src/main/java/com/squareup/square/locations/types/BulkDeleteLocationCustomAttributesRequest.java
index e71da171..8cad4581 100644
--- a/src/main/java/com/squareup/square/locations/types/BulkDeleteLocationCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/BulkDeleteLocationCustomAttributesRequest.java
@@ -117,5 +117,15 @@ public Builder values(
         public BulkDeleteLocationCustomAttributesRequest build() {
             return new BulkDeleteLocationCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/BulkUpsertLocationCustomAttributesRequest.java b/src/main/java/com/squareup/square/locations/types/BulkUpsertLocationCustomAttributesRequest.java
index c4b508ce..91edabb9 100644
--- a/src/main/java/com/squareup/square/locations/types/BulkUpsertLocationCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/BulkUpsertLocationCustomAttributesRequest.java
@@ -119,5 +119,15 @@ public Builder values(
         public BulkUpsertLocationCustomAttributesRequest build() {
             return new BulkUpsertLocationCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/CaptureTransactionsRequest.java b/src/main/java/com/squareup/square/locations/types/CaptureTransactionsRequest.java
index b0e5227c..2e826b01 100644
--- a/src/main/java/com/squareup/square/locations/types/CaptureTransactionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/CaptureTransactionsRequest.java
@@ -89,6 +89,10 @@ public interface TransactionIdStage {
 
     public interface _FinalStage {
         CaptureTransactionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -133,5 +137,17 @@ public _FinalStage transactionId(@NotNull String transactionId) {
         public CaptureTransactionsRequest build() {
             return new CaptureTransactionsRequest(locationId, transactionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/CreateLocationCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/locations/types/CreateLocationCustomAttributeDefinitionRequest.java
index 9444ce43..0bee3e94 100644
--- a/src/main/java/com/squareup/square/locations/types/CreateLocationCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/CreateLocationCustomAttributeDefinitionRequest.java
@@ -109,6 +109,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         CreateLocationCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -188,5 +192,17 @@ public CreateLocationCustomAttributeDefinitionRequest build() {
             return new CreateLocationCustomAttributeDefinitionRequest(
                     customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributeDefinitionsRequest.java
index 7aef917b..546c34b7 100644
--- a/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributeDefinitionsRequest.java
@@ -77,6 +77,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributeDefinitionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributeDefinitionsRequest build() {
             return new DeleteCustomAttributeDefinitionsRequest(key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributesRequest.java b/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributesRequest.java
index 2bf04bd9..d9c04221 100644
--- a/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/DeleteCustomAttributesRequest.java
@@ -98,6 +98,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributesRequest build() {
             return new DeleteCustomAttributesRequest(locationId, key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/GetCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/locations/types/GetCustomAttributeDefinitionsRequest.java
index 10bae4dd..ae9493ae 100644
--- a/src/main/java/com/squareup/square/locations/types/GetCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/GetCustomAttributeDefinitionsRequest.java
@@ -109,6 +109,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributeDefinitionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the custom attribute definition, which is used for strongly consistent
          * reads to guarantee that you receive the most up-to-date data. When included in the request,
@@ -203,5 +207,17 @@ public _FinalStage version(Optional<Integer> version) {
         public GetCustomAttributeDefinitionsRequest build() {
             return new GetCustomAttributeDefinitionsRequest(key, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/GetCustomAttributesRequest.java b/src/main/java/com/squareup/square/locations/types/GetCustomAttributesRequest.java
index 08479dc2..9b564d5d 100644
--- a/src/main/java/com/squareup/square/locations/types/GetCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/GetCustomAttributesRequest.java
@@ -157,6 +157,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates whether to return the <a href="entity:CustomAttributeDefinition">custom attribute definition</a> in the <code>definition</code> field of
          * the custom attribute. Set this parameter to <code>true</code> to get the name and description of the custom
@@ -324,5 +328,17 @@ public _FinalStage withDefinition(Optional<Boolean> withDefinition) {
         public GetCustomAttributesRequest build() {
             return new GetCustomAttributesRequest(locationId, key, withDefinition, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/GetTransactionsRequest.java b/src/main/java/com/squareup/square/locations/types/GetTransactionsRequest.java
index 646e1cbb..d5989cc0 100644
--- a/src/main/java/com/squareup/square/locations/types/GetTransactionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/GetTransactionsRequest.java
@@ -94,6 +94,10 @@ public interface TransactionIdStage {
 
     public interface _FinalStage {
         GetTransactionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage transactionId(@NotNull String transactionId) {
         public GetTransactionsRequest build() {
             return new GetTransactionsRequest(locationId, transactionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/ListCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/locations/types/ListCustomAttributeDefinitionsRequest.java
index ec87279f..82145420 100644
--- a/src/main/java/com/squareup/square/locations/types/ListCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/ListCustomAttributeDefinitionsRequest.java
@@ -232,5 +232,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListCustomAttributeDefinitionsRequest build() {
             return new ListCustomAttributeDefinitionsRequest(visibilityFilter, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/ListCustomAttributesRequest.java b/src/main/java/com/squareup/square/locations/types/ListCustomAttributesRequest.java
index fd15ce79..1167d70e 100644
--- a/src/main/java/com/squareup/square/locations/types/ListCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/ListCustomAttributesRequest.java
@@ -179,6 +179,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         ListCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Filters the <code>CustomAttributeDefinition</code> results by their <code>visibility</code> values.</p>
          */
@@ -428,5 +432,17 @@ public ListCustomAttributesRequest build() {
             return new ListCustomAttributesRequest(
                     locationId, visibilityFilter, limit, cursor, withDefinitions, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/ListTransactionsRequest.java b/src/main/java/com/squareup/square/locations/types/ListTransactionsRequest.java
index bec7750d..d4c51691 100644
--- a/src/main/java/com/squareup/square/locations/types/ListTransactionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/ListTransactionsRequest.java
@@ -181,6 +181,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         ListTransactionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The beginning of the requested reporting period, in RFC 3339 format.</p>
          * <p>See <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">Date ranges</a> for details on date inclusivity/exclusivity.</p>
@@ -437,5 +441,17 @@ public _FinalStage beginTime(Optional<String> beginTime) {
         public ListTransactionsRequest build() {
             return new ListTransactionsRequest(locationId, beginTime, endTime, sortOrder, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/UpdateLocationCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/locations/types/UpdateLocationCustomAttributeDefinitionRequest.java
index 136728f1..f9c8e0cd 100644
--- a/src/main/java/com/squareup/square/locations/types/UpdateLocationCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/UpdateLocationCustomAttributeDefinitionRequest.java
@@ -157,6 +157,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         UpdateLocationCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -286,5 +290,17 @@ public UpdateLocationCustomAttributeDefinitionRequest build() {
             return new UpdateLocationCustomAttributeDefinitionRequest(
                     key, customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/UpsertLocationCustomAttributeRequest.java b/src/main/java/com/squareup/square/locations/types/UpsertLocationCustomAttributeRequest.java
index fe6a824c..52801ff9 100644
--- a/src/main/java/com/squareup/square/locations/types/UpsertLocationCustomAttributeRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/UpsertLocationCustomAttributeRequest.java
@@ -167,6 +167,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         UpsertLocationCustomAttributeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -300,5 +304,17 @@ public UpsertLocationCustomAttributeRequest build() {
             return new UpsertLocationCustomAttributeRequest(
                     locationId, key, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/locations/types/VoidTransactionsRequest.java b/src/main/java/com/squareup/square/locations/types/VoidTransactionsRequest.java
index bb6fb1b7..6a45e204 100644
--- a/src/main/java/com/squareup/square/locations/types/VoidTransactionsRequest.java
+++ b/src/main/java/com/squareup/square/locations/types/VoidTransactionsRequest.java
@@ -88,6 +88,10 @@ public interface TransactionIdStage {
 
     public interface _FinalStage {
         VoidTransactionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -132,5 +136,17 @@ public _FinalStage transactionId(@NotNull String transactionId) {
         public VoidTransactionsRequest build() {
             return new VoidTransactionsRequest(locationId, transactionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/AsyncRawAccountsClient.java b/src/main/java/com/squareup/square/loyalty/AsyncRawAccountsClient.java
index 29f63973..74554eb4 100644
--- a/src/main/java/com/squareup/square/loyalty/AsyncRawAccountsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/AsyncRawAccountsClient.java
@@ -54,10 +54,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyAccountResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyAccountResponse>> create(
             CreateLoyaltyAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/accounts")
-                .build();
+                .addPathSegments("v2/loyalty/accounts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -66,7 +70,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyAccountResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -142,10 +146,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyAccountsResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyAccountsResponse>> search(
             SearchLoyaltyAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/accounts/search")
-                .build();
+                .addPathSegments("v2/loyalty/accounts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -154,7 +162,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyAccountsResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -206,13 +214,17 @@ public CompletableFuture<SquareClientHttpResponse<GetLoyaltyAccountResponse>> ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetLoyaltyAccountResponse>> get(
             GetAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
-                .addPathSegment(request.getAccountId())
-                .build();
+                .addPathSegment(request.getAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -298,12 +310,16 @@ public CompletableFuture<SquareClientHttpResponse<AccumulateLoyaltyPointsRespons
      */
     public CompletableFuture<SquareClientHttpResponse<AccumulateLoyaltyPointsResponse>> accumulatePoints(
             AccumulateLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
                 .addPathSegment(request.getAccountId())
-                .addPathSegments("accumulate")
-                .build();
+                .addPathSegments("accumulate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -312,7 +328,7 @@ public CompletableFuture<SquareClientHttpResponse<AccumulateLoyaltyPointsRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -371,12 +387,16 @@ public CompletableFuture<SquareClientHttpResponse<AdjustLoyaltyPointsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<AdjustLoyaltyPointsResponse>> adjust(
             AdjustLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
                 .addPathSegment(request.getAccountId())
-                .addPathSegments("adjust")
-                .build();
+                .addPathSegments("adjust");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -385,7 +405,7 @@ public CompletableFuture<SquareClientHttpResponse<AdjustLoyaltyPointsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/AsyncRawProgramsClient.java b/src/main/java/com/squareup/square/loyalty/AsyncRawProgramsClient.java
index d2ba8fa3..de755e2e 100644
--- a/src/main/java/com/squareup/square/loyalty/AsyncRawProgramsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/AsyncRawProgramsClient.java
@@ -52,12 +52,16 @@ public CompletableFuture<SquareClientHttpResponse<ListLoyaltyProgramsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<ListLoyaltyProgramsResponse>> list(
             RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/programs")
-                .build();
+                .addPathSegments("v2/loyalty/programs");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -110,13 +114,17 @@ public CompletableFuture<SquareClientHttpResponse<GetLoyaltyProgramResponse>> ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetLoyaltyProgramResponse>> get(
             GetProgramsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
-                .addPathSegment(request.getProgramId())
-                .build();
+                .addPathSegment(request.getProgramId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -204,12 +212,16 @@ public CompletableFuture<SquareClientHttpResponse<CalculateLoyaltyPointsResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CalculateLoyaltyPointsResponse>> calculate(
             CalculateLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
-                .addPathSegments("calculate")
-                .build();
+                .addPathSegments("calculate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -218,7 +230,7 @@ public CompletableFuture<SquareClientHttpResponse<CalculateLoyaltyPointsResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/AsyncRawRewardsClient.java b/src/main/java/com/squareup/square/loyalty/AsyncRawRewardsClient.java
index 71804dcb..3b9caf6f 100644
--- a/src/main/java/com/squareup/square/loyalty/AsyncRawRewardsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/AsyncRawRewardsClient.java
@@ -68,10 +68,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyRewardResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyRewardResponse>> create(
             CreateLoyaltyRewardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/rewards")
-                .build();
+                .addPathSegments("v2/loyalty/rewards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -80,7 +84,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyRewardResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -164,10 +168,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyRewardsResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyRewardsResponse>> search(
             SearchLoyaltyRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/rewards/search")
-                .build();
+                .addPathSegments("v2/loyalty/rewards/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -176,7 +184,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchLoyaltyRewardsResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -228,13 +236,17 @@ public CompletableFuture<SquareClientHttpResponse<GetLoyaltyRewardResponse>> get
      */
     public CompletableFuture<SquareClientHttpResponse<GetLoyaltyRewardResponse>> get(
             GetRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
-                .addPathSegment(request.getRewardId())
-                .build();
+                .addPathSegment(request.getRewardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -301,13 +313,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteLoyaltyRewardResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteLoyaltyRewardResponse>> delete(
             DeleteRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
-                .addPathSegment(request.getRewardId())
-                .build();
+                .addPathSegment(request.getRewardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -373,12 +389,16 @@ public CompletableFuture<SquareClientHttpResponse<RedeemLoyaltyRewardResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<RedeemLoyaltyRewardResponse>> redeem(
             RedeemLoyaltyRewardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
                 .addPathSegment(request.getRewardId())
-                .addPathSegments("redeem")
-                .build();
+                .addPathSegments("redeem");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -387,7 +407,7 @@ public CompletableFuture<SquareClientHttpResponse<RedeemLoyaltyRewardResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/RawAccountsClient.java b/src/main/java/com/squareup/square/loyalty/RawAccountsClient.java
index e9543e1e..44184b4f 100644
--- a/src/main/java/com/squareup/square/loyalty/RawAccountsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/RawAccountsClient.java
@@ -49,10 +49,14 @@ public SquareClientHttpResponse<CreateLoyaltyAccountResponse> create(CreateLoyal
      */
     public SquareClientHttpResponse<CreateLoyaltyAccountResponse> create(
             CreateLoyaltyAccountRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/accounts")
-                .build();
+                .addPathSegments("v2/loyalty/accounts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -61,7 +65,7 @@ public SquareClientHttpResponse<CreateLoyaltyAccountResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -121,10 +125,14 @@ public SquareClientHttpResponse<SearchLoyaltyAccountsResponse> search(SearchLoya
      */
     public SquareClientHttpResponse<SearchLoyaltyAccountsResponse> search(
             SearchLoyaltyAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/accounts/search")
-                .build();
+                .addPathSegments("v2/loyalty/accounts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -133,7 +141,7 @@ public SquareClientHttpResponse<SearchLoyaltyAccountsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -171,13 +179,17 @@ public SquareClientHttpResponse<GetLoyaltyAccountResponse> get(GetAccountsReques
      */
     public SquareClientHttpResponse<GetLoyaltyAccountResponse> get(
             GetAccountsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
-                .addPathSegment(request.getAccountId())
-                .build();
+                .addPathSegment(request.getAccountId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -249,12 +261,16 @@ public SquareClientHttpResponse<AccumulateLoyaltyPointsResponse> accumulatePoint
      */
     public SquareClientHttpResponse<AccumulateLoyaltyPointsResponse> accumulatePoints(
             AccumulateLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
                 .addPathSegment(request.getAccountId())
-                .addPathSegments("accumulate")
-                .build();
+                .addPathSegments("accumulate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -263,7 +279,7 @@ public SquareClientHttpResponse<AccumulateLoyaltyPointsResponse> accumulatePoint
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -307,12 +323,16 @@ public SquareClientHttpResponse<AdjustLoyaltyPointsResponse> adjust(AdjustLoyalt
      */
     public SquareClientHttpResponse<AdjustLoyaltyPointsResponse> adjust(
             AdjustLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/accounts")
                 .addPathSegment(request.getAccountId())
-                .addPathSegments("adjust")
-                .build();
+                .addPathSegments("adjust");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -321,7 +341,7 @@ public SquareClientHttpResponse<AdjustLoyaltyPointsResponse> adjust(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/RawProgramsClient.java b/src/main/java/com/squareup/square/loyalty/RawProgramsClient.java
index 7917c7c0..558695b4 100644
--- a/src/main/java/com/squareup/square/loyalty/RawProgramsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/RawProgramsClient.java
@@ -47,12 +47,16 @@ public SquareClientHttpResponse<ListLoyaltyProgramsResponse> list() {
      * <p>Replaced with <a href="api-endpoint:Loyalty-RetrieveLoyaltyProgram">RetrieveLoyaltyProgram</a> when used with the keyword <code>main</code>.</p>
      */
     public SquareClientHttpResponse<ListLoyaltyProgramsResponse> list(RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/programs")
-                .build();
+                .addPathSegments("v2/loyalty/programs");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json")
@@ -91,13 +95,17 @@ public SquareClientHttpResponse<GetLoyaltyProgramResponse> get(GetProgramsReques
      */
     public SquareClientHttpResponse<GetLoyaltyProgramResponse> get(
             GetProgramsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
-                .addPathSegment(request.getProgramId())
-                .build();
+                .addPathSegment(request.getProgramId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -170,12 +178,16 @@ public SquareClientHttpResponse<CalculateLoyaltyPointsResponse> calculate(Calcul
      */
     public SquareClientHttpResponse<CalculateLoyaltyPointsResponse> calculate(
             CalculateLoyaltyPointsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
-                .addPathSegments("calculate")
-                .build();
+                .addPathSegments("calculate");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -184,7 +196,7 @@ public SquareClientHttpResponse<CalculateLoyaltyPointsResponse> calculate(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/RawRewardsClient.java b/src/main/java/com/squareup/square/loyalty/RawRewardsClient.java
index 88e3fa03..0f1d61df 100644
--- a/src/main/java/com/squareup/square/loyalty/RawRewardsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/RawRewardsClient.java
@@ -63,10 +63,14 @@ public SquareClientHttpResponse<CreateLoyaltyRewardResponse> create(CreateLoyalt
      */
     public SquareClientHttpResponse<CreateLoyaltyRewardResponse> create(
             CreateLoyaltyRewardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/rewards")
-                .build();
+                .addPathSegments("v2/loyalty/rewards");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -75,7 +79,7 @@ public SquareClientHttpResponse<CreateLoyaltyRewardResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -143,10 +147,14 @@ public SquareClientHttpResponse<SearchLoyaltyRewardsResponse> search(SearchLoyal
      */
     public SquareClientHttpResponse<SearchLoyaltyRewardsResponse> search(
             SearchLoyaltyRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/loyalty/rewards/search")
-                .build();
+                .addPathSegments("v2/loyalty/rewards/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -155,7 +163,7 @@ public SquareClientHttpResponse<SearchLoyaltyRewardsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -193,13 +201,17 @@ public SquareClientHttpResponse<GetLoyaltyRewardResponse> get(GetRewardsRequest
      */
     public SquareClientHttpResponse<GetLoyaltyRewardResponse> get(
             GetRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
-                .addPathSegment(request.getRewardId())
-                .build();
+                .addPathSegment(request.getRewardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -252,13 +264,17 @@ public SquareClientHttpResponse<DeleteLoyaltyRewardResponse> delete(DeleteReward
      */
     public SquareClientHttpResponse<DeleteLoyaltyRewardResponse> delete(
             DeleteRewardsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
-                .addPathSegment(request.getRewardId())
-                .build();
+                .addPathSegment(request.getRewardId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -309,12 +325,16 @@ public SquareClientHttpResponse<RedeemLoyaltyRewardResponse> redeem(RedeemLoyalt
      */
     public SquareClientHttpResponse<RedeemLoyaltyRewardResponse> redeem(
             RedeemLoyaltyRewardRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/rewards")
                 .addPathSegment(request.getRewardId())
-                .addPathSegments("redeem")
-                .build();
+                .addPathSegments("redeem");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -323,7 +343,7 @@ public SquareClientHttpResponse<RedeemLoyaltyRewardResponse> redeem(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/loyalty/programs/AsyncRawPromotionsClient.java b/src/main/java/com/squareup/square/loyalty/programs/AsyncRawPromotionsClient.java
index 2f386f83..a82bebf6 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/AsyncRawPromotionsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/AsyncRawPromotionsClient.java
@@ -78,6 +78,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<LoyaltyProm
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -157,12 +162,16 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyPromotionResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyPromotionResponse>> create(
             CreateLoyaltyPromotionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
-                .addPathSegments("promotions")
-                .build();
+                .addPathSegments("promotions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -171,7 +180,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateLoyaltyPromotionResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -223,15 +232,19 @@ public CompletableFuture<SquareClientHttpResponse<GetLoyaltyPromotionResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<GetLoyaltyPromotionResponse>> get(
             GetPromotionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
                 .addPathSegments("promotions")
-                .addPathSegment(request.getPromotionId())
-                .build();
+                .addPathSegment(request.getPromotionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -291,16 +304,20 @@ public CompletableFuture<SquareClientHttpResponse<CancelLoyaltyPromotionResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CancelLoyaltyPromotionResponse>> cancel(
             CancelPromotionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
                 .addPathSegments("promotions")
                 .addPathSegment(request.getPromotionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/loyalty/programs/RawPromotionsClient.java b/src/main/java/com/squareup/square/loyalty/programs/RawPromotionsClient.java
index bf2b637e..372bb0b0 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/RawPromotionsClient.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/RawPromotionsClient.java
@@ -72,6 +72,11 @@ public SquareClientHttpResponse<SyncPagingIterable<LoyaltyPromotion>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -130,12 +135,16 @@ public SquareClientHttpResponse<CreateLoyaltyPromotionResponse> create(CreateLoy
      */
     public SquareClientHttpResponse<CreateLoyaltyPromotionResponse> create(
             CreateLoyaltyPromotionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
-                .addPathSegments("promotions")
-                .build();
+                .addPathSegments("promotions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -144,7 +153,7 @@ public SquareClientHttpResponse<CreateLoyaltyPromotionResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -182,15 +191,19 @@ public SquareClientHttpResponse<GetLoyaltyPromotionResponse> get(GetPromotionsRe
      */
     public SquareClientHttpResponse<GetLoyaltyPromotionResponse> get(
             GetPromotionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
                 .addPathSegments("promotions")
-                .addPathSegment(request.getPromotionId())
-                .build();
+                .addPathSegment(request.getPromotionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -235,16 +248,20 @@ public SquareClientHttpResponse<CancelLoyaltyPromotionResponse> cancel(CancelPro
      */
     public SquareClientHttpResponse<CancelLoyaltyPromotionResponse> cancel(
             CancelPromotionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/loyalty/programs")
                 .addPathSegment(request.getProgramId())
                 .addPathSegments("promotions")
                 .addPathSegment(request.getPromotionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/loyalty/programs/types/CancelPromotionsRequest.java b/src/main/java/com/squareup/square/loyalty/programs/types/CancelPromotionsRequest.java
index 1dff3b15..5eda640f 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/types/CancelPromotionsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/types/CancelPromotionsRequest.java
@@ -96,6 +96,10 @@ public interface PromotionIdStage {
 
     public interface _FinalStage {
         CancelPromotionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -146,5 +150,17 @@ public _FinalStage promotionId(@NotNull String promotionId) {
         public CancelPromotionsRequest build() {
             return new CancelPromotionsRequest(programId, promotionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/programs/types/CreateLoyaltyPromotionRequest.java b/src/main/java/com/squareup/square/loyalty/programs/types/CreateLoyaltyPromotionRequest.java
index c2447bf3..68a9a835 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/types/CreateLoyaltyPromotionRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/types/CreateLoyaltyPromotionRequest.java
@@ -125,6 +125,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         CreateLoyaltyPromotionRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -195,5 +199,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public CreateLoyaltyPromotionRequest build() {
             return new CreateLoyaltyPromotionRequest(programId, loyaltyPromotion, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/programs/types/GetPromotionsRequest.java b/src/main/java/com/squareup/square/loyalty/programs/types/GetPromotionsRequest.java
index 3935590a..57f165d7 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/types/GetPromotionsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/types/GetPromotionsRequest.java
@@ -96,6 +96,10 @@ public interface PromotionIdStage {
 
     public interface _FinalStage {
         GetPromotionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -146,5 +150,17 @@ public _FinalStage promotionId(@NotNull String promotionId) {
         public GetPromotionsRequest build() {
             return new GetPromotionsRequest(programId, promotionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/programs/types/ListPromotionsRequest.java b/src/main/java/com/squareup/square/loyalty/programs/types/ListPromotionsRequest.java
index 16ce10c6..174ef6e0 100644
--- a/src/main/java/com/squareup/square/loyalty/programs/types/ListPromotionsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/programs/types/ListPromotionsRequest.java
@@ -159,6 +159,10 @@ public interface ProgramIdStage {
     public interface _FinalStage {
         ListPromotionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The status to filter the results by. If a status is provided, only loyalty promotions
          * with the specified status are returned. Otherwise, all loyalty promotions associated with
@@ -361,5 +365,17 @@ public _FinalStage status(Optional<LoyaltyPromotionStatus> status) {
         public ListPromotionsRequest build() {
             return new ListPromotionsRequest(programId, status, cursor, limit, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/AccumulateLoyaltyPointsRequest.java b/src/main/java/com/squareup/square/loyalty/types/AccumulateLoyaltyPointsRequest.java
index e4050b57..719de163 100644
--- a/src/main/java/com/squareup/square/loyalty/types/AccumulateLoyaltyPointsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/AccumulateLoyaltyPointsRequest.java
@@ -145,6 +145,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         AccumulateLoyaltyPointsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -231,5 +235,17 @@ public AccumulateLoyaltyPointsRequest build() {
             return new AccumulateLoyaltyPointsRequest(
                     accountId, accumulatePoints, idempotencyKey, locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/AdjustLoyaltyPointsRequest.java b/src/main/java/com/squareup/square/loyalty/types/AdjustLoyaltyPointsRequest.java
index 3ad58e18..dd508b88 100644
--- a/src/main/java/com/squareup/square/loyalty/types/AdjustLoyaltyPointsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/AdjustLoyaltyPointsRequest.java
@@ -153,6 +153,10 @@ public interface AdjustPointsStage {
     public interface _FinalStage {
         AdjustLoyaltyPointsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates whether to allow a negative adjustment to result in a negative balance. If <code>true</code>, a negative
          * balance is allowed when subtracting points. If <code>false</code>, Square returns a <code>BAD_REQUEST</code> error when subtracting
@@ -276,5 +280,17 @@ public AdjustLoyaltyPointsRequest build() {
             return new AdjustLoyaltyPointsRequest(
                     accountId, idempotencyKey, adjustPoints, allowNegativeBalance, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/CalculateLoyaltyPointsRequest.java b/src/main/java/com/squareup/square/loyalty/types/CalculateLoyaltyPointsRequest.java
index 7fa3b7dc..9db22280 100644
--- a/src/main/java/com/squareup/square/loyalty/types/CalculateLoyaltyPointsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/CalculateLoyaltyPointsRequest.java
@@ -152,6 +152,10 @@ public interface ProgramIdStage {
     public interface _FinalStage {
         CalculateLoyaltyPointsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <a href="entity:Order">order</a> ID for which to calculate the points.
          * Specify this field if your application uses the Orders API to process orders.
@@ -349,5 +353,17 @@ public CalculateLoyaltyPointsRequest build() {
             return new CalculateLoyaltyPointsRequest(
                     programId, orderId, transactionAmountMoney, loyaltyAccountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyAccountRequest.java b/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyAccountRequest.java
index 39735c6d..800edc99 100644
--- a/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyAccountRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyAccountRequest.java
@@ -98,6 +98,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         CreateLoyaltyAccountRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -148,5 +152,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public CreateLoyaltyAccountRequest build() {
             return new CreateLoyaltyAccountRequest(loyaltyAccount, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyRewardRequest.java b/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyRewardRequest.java
index efaa68ff..29998e42 100644
--- a/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyRewardRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/CreateLoyaltyRewardRequest.java
@@ -98,6 +98,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         CreateLoyaltyRewardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -148,5 +152,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public CreateLoyaltyRewardRequest build() {
             return new CreateLoyaltyRewardRequest(reward, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/DeleteRewardsRequest.java b/src/main/java/com/squareup/square/loyalty/types/DeleteRewardsRequest.java
index 7ddbda10..8253d4d3 100644
--- a/src/main/java/com/squareup/square/loyalty/types/DeleteRewardsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/DeleteRewardsRequest.java
@@ -76,6 +76,10 @@ public interface RewardIdStage {
 
     public interface _FinalStage {
         DeleteRewardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage rewardId(@NotNull String rewardId) {
         public DeleteRewardsRequest build() {
             return new DeleteRewardsRequest(rewardId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/GetAccountsRequest.java b/src/main/java/com/squareup/square/loyalty/types/GetAccountsRequest.java
index 678d8006..0e779da2 100644
--- a/src/main/java/com/squareup/square/loyalty/types/GetAccountsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/GetAccountsRequest.java
@@ -76,6 +76,10 @@ public interface AccountIdStage {
 
     public interface _FinalStage {
         GetAccountsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage accountId(@NotNull String accountId) {
         public GetAccountsRequest build() {
             return new GetAccountsRequest(accountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/GetProgramsRequest.java b/src/main/java/com/squareup/square/loyalty/types/GetProgramsRequest.java
index 00be3bdb..19297a5a 100644
--- a/src/main/java/com/squareup/square/loyalty/types/GetProgramsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/GetProgramsRequest.java
@@ -76,6 +76,10 @@ public interface ProgramIdStage {
 
     public interface _FinalStage {
         GetProgramsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage programId(@NotNull String programId) {
         public GetProgramsRequest build() {
             return new GetProgramsRequest(programId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/GetRewardsRequest.java b/src/main/java/com/squareup/square/loyalty/types/GetRewardsRequest.java
index c6326a6a..08395a68 100644
--- a/src/main/java/com/squareup/square/loyalty/types/GetRewardsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/GetRewardsRequest.java
@@ -76,6 +76,10 @@ public interface RewardIdStage {
 
     public interface _FinalStage {
         GetRewardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage rewardId(@NotNull String rewardId) {
         public GetRewardsRequest build() {
             return new GetRewardsRequest(rewardId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/RedeemLoyaltyRewardRequest.java b/src/main/java/com/squareup/square/loyalty/types/RedeemLoyaltyRewardRequest.java
index c9ef4e1c..0e2020f0 100644
--- a/src/main/java/com/squareup/square/loyalty/types/RedeemLoyaltyRewardRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/RedeemLoyaltyRewardRequest.java
@@ -117,6 +117,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         RedeemLoyaltyRewardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -182,5 +186,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public RedeemLoyaltyRewardRequest build() {
             return new RedeemLoyaltyRewardRequest(rewardId, idempotencyKey, locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyAccountsRequest.java b/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyAccountsRequest.java
index 777c0454..5bd72fc5 100644
--- a/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyAccountsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyAccountsRequest.java
@@ -166,5 +166,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyAccountsRequest build() {
             return new SearchLoyaltyAccountsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyRewardsRequest.java b/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyRewardsRequest.java
index b603536d..5a587e8d 100644
--- a/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyRewardsRequest.java
+++ b/src/main/java/com/squareup/square/loyalty/types/SearchLoyaltyRewardsRequest.java
@@ -168,5 +168,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyRewardsRequest build() {
             return new SearchLoyaltyRewardsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributeDefinitionsClient.java
index 7c8b5feb..bdddd328 100644
--- a/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributeDefinitionsClient.java
@@ -103,6 +103,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -188,10 +193,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateMerchantCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<CreateMerchantCustomAttributeDefinitionResponse>> create(
             CreateMerchantCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/merchants/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -200,7 +209,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateMerchantCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -266,6 +275,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveMerchantCustomAttribut
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -326,11 +340,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateMerchantCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateMerchantCustomAttributeDefinitionResponse>> update(
             UpdateMerchantCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -339,7 +357,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateMerchantCustomAttributeD
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -399,13 +417,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteMerchantCustomAttributeD
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteMerchantCustomAttributeDefinitionResponse>> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributesClient.java b/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributesClient.java
index 2288581c..fd055234 100644
--- a/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/merchants/AsyncRawCustomAttributesClient.java
@@ -67,10 +67,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteMerchantCustomAttrib
      */
     public CompletableFuture<SquareClientHttpResponse<BulkDeleteMerchantCustomAttributesResponse>> batchDelete(
             BulkDeleteMerchantCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/merchants/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -79,7 +83,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteMerchantCustomAttrib
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -151,10 +155,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertMerchantCustomAttrib
      */
     public CompletableFuture<SquareClientHttpResponse<BulkUpsertMerchantCustomAttributesResponse>> batchUpsert(
             BulkUpsertMerchantCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/merchants/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -163,7 +171,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertMerchantCustomAttrib
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -248,6 +256,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -341,6 +354,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveMerchantCustomAttribut
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -405,13 +423,17 @@ public CompletableFuture<SquareClientHttpResponse<UpsertMerchantCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertMerchantCustomAttributeResponse>> upsert(
             UpsertMerchantCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
                 .addPathSegment(request.getMerchantId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -420,7 +442,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertMerchantCustomAttributeR
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -478,15 +500,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteMerchantCustomAttributeR
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteMerchantCustomAttributeResponse>> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
                 .addPathSegment(request.getMerchantId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/merchants/RawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/merchants/RawCustomAttributeDefinitionsClient.java
index 0f08f807..a17a6a45 100644
--- a/src/main/java/com/squareup/square/merchants/RawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/merchants/RawCustomAttributeDefinitionsClient.java
@@ -97,6 +97,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttributeDefinition>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "cursor", request.getCursor().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -160,10 +165,14 @@ public SquareClientHttpResponse<CreateMerchantCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<CreateMerchantCustomAttributeDefinitionResponse> create(
             CreateMerchantCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/merchants/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -172,7 +181,7 @@ public SquareClientHttpResponse<CreateMerchantCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -224,6 +233,11 @@ public SquareClientHttpResponse<RetrieveMerchantCustomAttributeDefinitionRespons
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -270,11 +284,15 @@ public SquareClientHttpResponse<UpdateMerchantCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<UpdateMerchantCustomAttributeDefinitionResponse> update(
             UpdateMerchantCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -283,7 +301,7 @@ public SquareClientHttpResponse<UpdateMerchantCustomAttributeDefinitionResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -329,13 +347,17 @@ public SquareClientHttpResponse<DeleteMerchantCustomAttributeDefinitionResponse>
      */
     public SquareClientHttpResponse<DeleteMerchantCustomAttributeDefinitionResponse> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/merchants/RawCustomAttributesClient.java b/src/main/java/com/squareup/square/merchants/RawCustomAttributesClient.java
index 31f56220..1f143e09 100644
--- a/src/main/java/com/squareup/square/merchants/RawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/merchants/RawCustomAttributesClient.java
@@ -62,10 +62,14 @@ public SquareClientHttpResponse<BulkDeleteMerchantCustomAttributesResponse> batc
      */
     public SquareClientHttpResponse<BulkDeleteMerchantCustomAttributesResponse> batchDelete(
             BulkDeleteMerchantCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/merchants/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -74,7 +78,7 @@ public SquareClientHttpResponse<BulkDeleteMerchantCustomAttributesResponse> batc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -132,10 +136,14 @@ public SquareClientHttpResponse<BulkUpsertMerchantCustomAttributesResponse> batc
      */
     public SquareClientHttpResponse<BulkUpsertMerchantCustomAttributesResponse> batchUpsert(
             BulkUpsertMerchantCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/merchants/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/merchants/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -144,7 +152,7 @@ public SquareClientHttpResponse<BulkUpsertMerchantCustomAttributesResponse> batc
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -214,6 +222,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttribute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -286,6 +299,11 @@ public SquareClientHttpResponse<RetrieveMerchantCustomAttributeResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -336,13 +354,17 @@ public SquareClientHttpResponse<UpsertMerchantCustomAttributeResponse> upsert(
      */
     public SquareClientHttpResponse<UpsertMerchantCustomAttributeResponse> upsert(
             UpsertMerchantCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
                 .addPathSegment(request.getMerchantId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -351,7 +373,7 @@ public SquareClientHttpResponse<UpsertMerchantCustomAttributeResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -395,15 +417,19 @@ public SquareClientHttpResponse<DeleteMerchantCustomAttributeResponse> delete(
      */
     public SquareClientHttpResponse<DeleteMerchantCustomAttributeResponse> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/merchants")
                 .addPathSegment(request.getMerchantId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/merchants/types/BulkDeleteMerchantCustomAttributesRequest.java b/src/main/java/com/squareup/square/merchants/types/BulkDeleteMerchantCustomAttributesRequest.java
index 54170ddf..c60f88b3 100644
--- a/src/main/java/com/squareup/square/merchants/types/BulkDeleteMerchantCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/BulkDeleteMerchantCustomAttributesRequest.java
@@ -117,5 +117,15 @@ public Builder values(
         public BulkDeleteMerchantCustomAttributesRequest build() {
             return new BulkDeleteMerchantCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/BulkUpsertMerchantCustomAttributesRequest.java b/src/main/java/com/squareup/square/merchants/types/BulkUpsertMerchantCustomAttributesRequest.java
index 938c708a..2f46b715 100644
--- a/src/main/java/com/squareup/square/merchants/types/BulkUpsertMerchantCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/BulkUpsertMerchantCustomAttributesRequest.java
@@ -119,5 +119,15 @@ public Builder values(
         public BulkUpsertMerchantCustomAttributesRequest build() {
             return new BulkUpsertMerchantCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/CreateMerchantCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/merchants/types/CreateMerchantCustomAttributeDefinitionRequest.java
index 2b4d0988..f38e4115 100644
--- a/src/main/java/com/squareup/square/merchants/types/CreateMerchantCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/CreateMerchantCustomAttributeDefinitionRequest.java
@@ -109,6 +109,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         CreateMerchantCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -188,5 +192,17 @@ public CreateMerchantCustomAttributeDefinitionRequest build() {
             return new CreateMerchantCustomAttributeDefinitionRequest(
                     customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributeDefinitionsRequest.java
index 4838334e..c94d7281 100644
--- a/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributeDefinitionsRequest.java
@@ -77,6 +77,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributeDefinitionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributeDefinitionsRequest build() {
             return new DeleteCustomAttributeDefinitionsRequest(key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributesRequest.java b/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributesRequest.java
index 50f9cdfd..5dab53c1 100644
--- a/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/DeleteCustomAttributesRequest.java
@@ -98,6 +98,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributesRequest build() {
             return new DeleteCustomAttributesRequest(merchantId, key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/GetCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/merchants/types/GetCustomAttributeDefinitionsRequest.java
index 68909aa6..59669610 100644
--- a/src/main/java/com/squareup/square/merchants/types/GetCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/GetCustomAttributeDefinitionsRequest.java
@@ -109,6 +109,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributeDefinitionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the custom attribute definition, which is used for strongly consistent
          * reads to guarantee that you receive the most up-to-date data. When included in the request,
@@ -203,5 +207,17 @@ public _FinalStage version(Optional<Integer> version) {
         public GetCustomAttributeDefinitionsRequest build() {
             return new GetCustomAttributeDefinitionsRequest(key, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/GetCustomAttributesRequest.java b/src/main/java/com/squareup/square/merchants/types/GetCustomAttributesRequest.java
index 6212076a..72a5da37 100644
--- a/src/main/java/com/squareup/square/merchants/types/GetCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/GetCustomAttributesRequest.java
@@ -157,6 +157,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates whether to return the <a href="entity:CustomAttributeDefinition">custom attribute definition</a> in the <code>definition</code> field of
          * the custom attribute. Set this parameter to <code>true</code> to get the name and description of the custom
@@ -324,5 +328,17 @@ public _FinalStage withDefinition(Optional<Boolean> withDefinition) {
         public GetCustomAttributesRequest build() {
             return new GetCustomAttributesRequest(merchantId, key, withDefinition, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/ListCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/merchants/types/ListCustomAttributeDefinitionsRequest.java
index 6294746a..4a84f08c 100644
--- a/src/main/java/com/squareup/square/merchants/types/ListCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/ListCustomAttributeDefinitionsRequest.java
@@ -232,5 +232,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListCustomAttributeDefinitionsRequest build() {
             return new ListCustomAttributeDefinitionsRequest(visibilityFilter, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/ListCustomAttributesRequest.java b/src/main/java/com/squareup/square/merchants/types/ListCustomAttributesRequest.java
index a260ff4b..bf92bd59 100644
--- a/src/main/java/com/squareup/square/merchants/types/ListCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/ListCustomAttributesRequest.java
@@ -179,6 +179,10 @@ public interface MerchantIdStage {
     public interface _FinalStage {
         ListCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Filters the <code>CustomAttributeDefinition</code> results by their <code>visibility</code> values.</p>
          */
@@ -428,5 +432,17 @@ public ListCustomAttributesRequest build() {
             return new ListCustomAttributesRequest(
                     merchantId, visibilityFilter, limit, cursor, withDefinitions, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/UpdateMerchantCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/merchants/types/UpdateMerchantCustomAttributeDefinitionRequest.java
index 449520bb..6ee073c4 100644
--- a/src/main/java/com/squareup/square/merchants/types/UpdateMerchantCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/UpdateMerchantCustomAttributeDefinitionRequest.java
@@ -157,6 +157,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         UpdateMerchantCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -286,5 +290,17 @@ public UpdateMerchantCustomAttributeDefinitionRequest build() {
             return new UpdateMerchantCustomAttributeDefinitionRequest(
                     key, customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/merchants/types/UpsertMerchantCustomAttributeRequest.java b/src/main/java/com/squareup/square/merchants/types/UpsertMerchantCustomAttributeRequest.java
index ae80ecff..55acab8f 100644
--- a/src/main/java/com/squareup/square/merchants/types/UpsertMerchantCustomAttributeRequest.java
+++ b/src/main/java/com/squareup/square/merchants/types/UpsertMerchantCustomAttributeRequest.java
@@ -167,6 +167,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         UpsertMerchantCustomAttributeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency. For more information,
          * see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -300,5 +304,17 @@ public UpsertMerchantCustomAttributeRequest build() {
             return new UpsertMerchantCustomAttributeRequest(
                     merchantId, key, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributeDefinitionsClient.java
index 38dce564..0d198a5a 100644
--- a/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributeDefinitionsClient.java
@@ -106,6 +106,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -184,10 +189,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateOrderCustomAttributeDefi
      */
     public CompletableFuture<SquareClientHttpResponse<CreateOrderCustomAttributeDefinitionResponse>> create(
             CreateOrderCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/orders/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -196,7 +205,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateOrderCustomAttributeDefi
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -264,6 +273,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveOrderCustomAttributeDe
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -320,11 +334,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateOrderCustomAttributeDefi
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateOrderCustomAttributeDefinitionResponse>> update(
             UpdateOrderCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -333,7 +351,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateOrderCustomAttributeDefi
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -389,13 +407,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteOrderCustomAttributeDefi
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteOrderCustomAttributeDefinitionResponse>> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributesClient.java b/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributesClient.java
index b2bc51ab..9616d239 100644
--- a/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/orders/AsyncRawCustomAttributesClient.java
@@ -83,10 +83,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteOrderCustomAttribute
      */
     public CompletableFuture<SquareClientHttpResponse<BulkDeleteOrderCustomAttributesResponse>> batchDelete(
             BulkDeleteOrderCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/orders/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -95,7 +99,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkDeleteOrderCustomAttribute
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -169,10 +173,14 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertOrderCustomAttribute
      */
     public CompletableFuture<SquareClientHttpResponse<BulkUpsertOrderCustomAttributesResponse>> batchUpsert(
             BulkUpsertOrderCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/orders/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -181,7 +189,7 @@ public CompletableFuture<SquareClientHttpResponse<BulkUpsertOrderCustomAttribute
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -266,6 +274,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<CustomAttri
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -361,6 +374,11 @@ public CompletableFuture<SquareClientHttpResponse<RetrieveOrderCustomAttributeRe
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definition", request.getWithDefinition().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -427,13 +445,17 @@ public CompletableFuture<SquareClientHttpResponse<UpsertOrderCustomAttributeResp
      */
     public CompletableFuture<SquareClientHttpResponse<UpsertOrderCustomAttributeResponse>> upsert(
             UpsertOrderCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getCustomAttributeKey())
-                .build();
+                .addPathSegment(request.getCustomAttributeKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -442,7 +464,7 @@ public CompletableFuture<SquareClientHttpResponse<UpsertOrderCustomAttributeResp
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -502,15 +524,19 @@ public CompletableFuture<SquareClientHttpResponse<DeleteOrderCustomAttributeResp
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteOrderCustomAttributeResponse>> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getCustomAttributeKey())
-                .build();
+                .addPathSegment(request.getCustomAttributeKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/orders/RawCustomAttributeDefinitionsClient.java b/src/main/java/com/squareup/square/orders/RawCustomAttributeDefinitionsClient.java
index 81154549..614a3e76 100644
--- a/src/main/java/com/squareup/square/orders/RawCustomAttributeDefinitionsClient.java
+++ b/src/main/java/com/squareup/square/orders/RawCustomAttributeDefinitionsClient.java
@@ -100,6 +100,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttributeDefinition>> l
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -156,10 +161,14 @@ public SquareClientHttpResponse<CreateOrderCustomAttributeDefinitionResponse> cr
      */
     public SquareClientHttpResponse<CreateOrderCustomAttributeDefinitionResponse> create(
             CreateOrderCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attribute-definitions")
-                .build();
+                .addPathSegments("v2/orders/custom-attribute-definitions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -168,7 +177,7 @@ public SquareClientHttpResponse<CreateOrderCustomAttributeDefinitionResponse> cr
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -222,6 +231,11 @@ public SquareClientHttpResponse<RetrieveOrderCustomAttributeDefinitionResponse>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "version", request.getVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -264,11 +278,15 @@ public SquareClientHttpResponse<UpdateOrderCustomAttributeDefinitionResponse> up
      */
     public SquareClientHttpResponse<UpdateOrderCustomAttributeDefinitionResponse> update(
             UpdateOrderCustomAttributeDefinitionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -277,7 +295,7 @@ public SquareClientHttpResponse<UpdateOrderCustomAttributeDefinitionResponse> up
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -319,13 +337,17 @@ public SquareClientHttpResponse<DeleteOrderCustomAttributeDefinitionResponse> de
      */
     public SquareClientHttpResponse<DeleteOrderCustomAttributeDefinitionResponse> delete(
             DeleteCustomAttributeDefinitionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders/custom-attribute-definitions")
-                .addPathSegment(request.getKey())
-                .build();
+                .addPathSegment(request.getKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/orders/RawCustomAttributesClient.java b/src/main/java/com/squareup/square/orders/RawCustomAttributesClient.java
index d5f62c0c..dc218d06 100644
--- a/src/main/java/com/squareup/square/orders/RawCustomAttributesClient.java
+++ b/src/main/java/com/squareup/square/orders/RawCustomAttributesClient.java
@@ -78,10 +78,14 @@ public SquareClientHttpResponse<BulkDeleteOrderCustomAttributesResponse> batchDe
      */
     public SquareClientHttpResponse<BulkDeleteOrderCustomAttributesResponse> batchDelete(
             BulkDeleteOrderCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attributes/bulk-delete")
-                .build();
+                .addPathSegments("v2/orders/custom-attributes/bulk-delete");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -90,7 +94,7 @@ public SquareClientHttpResponse<BulkDeleteOrderCustomAttributesResponse> batchDe
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -150,10 +154,14 @@ public SquareClientHttpResponse<BulkUpsertOrderCustomAttributesResponse> batchUp
      */
     public SquareClientHttpResponse<BulkUpsertOrderCustomAttributesResponse> batchUpsert(
             BulkUpsertOrderCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/orders/custom-attributes/bulk-upsert")
-                .build();
+                .addPathSegments("v2/orders/custom-attributes/bulk-upsert");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -162,7 +170,7 @@ public SquareClientHttpResponse<BulkUpsertOrderCustomAttributesResponse> batchUp
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -232,6 +240,11 @@ public SquareClientHttpResponse<SyncPagingIterable<CustomAttribute>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definitions", request.getWithDefinitions().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -306,6 +319,11 @@ public SquareClientHttpResponse<RetrieveOrderCustomAttributeResponse> get(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "with_definition", request.getWithDefinition().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -358,13 +376,17 @@ public SquareClientHttpResponse<UpsertOrderCustomAttributeResponse> upsert(
      */
     public SquareClientHttpResponse<UpsertOrderCustomAttributeResponse> upsert(
             UpsertOrderCustomAttributeRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getCustomAttributeKey())
-                .build();
+                .addPathSegment(request.getCustomAttributeKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -373,7 +395,7 @@ public SquareClientHttpResponse<UpsertOrderCustomAttributeResponse> upsert(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -418,15 +440,19 @@ public SquareClientHttpResponse<DeleteOrderCustomAttributeResponse> delete(Delet
      */
     public SquareClientHttpResponse<DeleteOrderCustomAttributeResponse> delete(
             DeleteCustomAttributesRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/orders")
                 .addPathSegment(request.getOrderId())
                 .addPathSegments("custom-attributes")
-                .addPathSegment(request.getCustomAttributeKey())
-                .build();
+                .addPathSegment(request.getCustomAttributeKey());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/orders/types/BulkDeleteOrderCustomAttributesRequest.java b/src/main/java/com/squareup/square/orders/types/BulkDeleteOrderCustomAttributesRequest.java
index 2d1e890c..66d53ce8 100644
--- a/src/main/java/com/squareup/square/orders/types/BulkDeleteOrderCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/BulkDeleteOrderCustomAttributesRequest.java
@@ -111,5 +111,15 @@ public Builder values(String key, BulkDeleteOrderCustomAttributesRequestDeleteCu
         public BulkDeleteOrderCustomAttributesRequest build() {
             return new BulkDeleteOrderCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/BulkUpsertOrderCustomAttributesRequest.java b/src/main/java/com/squareup/square/orders/types/BulkUpsertOrderCustomAttributesRequest.java
index 38f2c257..36910c0b 100644
--- a/src/main/java/com/squareup/square/orders/types/BulkUpsertOrderCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/BulkUpsertOrderCustomAttributesRequest.java
@@ -111,5 +111,15 @@ public Builder values(String key, BulkUpsertOrderCustomAttributesRequestUpsertCu
         public BulkUpsertOrderCustomAttributesRequest build() {
             return new BulkUpsertOrderCustomAttributesRequest(values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/CreateOrderCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/orders/types/CreateOrderCustomAttributeDefinitionRequest.java
index a8af8d7c..2b68b876 100644
--- a/src/main/java/com/squareup/square/orders/types/CreateOrderCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/CreateOrderCustomAttributeDefinitionRequest.java
@@ -111,6 +111,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         CreateOrderCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -192,5 +196,17 @@ public CreateOrderCustomAttributeDefinitionRequest build() {
             return new CreateOrderCustomAttributeDefinitionRequest(
                     customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributeDefinitionsRequest.java
index 1bd23812..c5bd97b5 100644
--- a/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributeDefinitionsRequest.java
@@ -77,6 +77,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributeDefinitionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage key(@NotNull String key) {
         public DeleteCustomAttributeDefinitionsRequest build() {
             return new DeleteCustomAttributeDefinitionsRequest(key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributesRequest.java b/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributesRequest.java
index eb3d70cf..47f21249 100644
--- a/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/DeleteCustomAttributesRequest.java
@@ -97,6 +97,10 @@ public interface CustomAttributeKeyStage {
 
     public interface _FinalStage {
         DeleteCustomAttributesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -147,5 +151,17 @@ public _FinalStage customAttributeKey(@NotNull String customAttributeKey) {
         public DeleteCustomAttributesRequest build() {
             return new DeleteCustomAttributesRequest(orderId, customAttributeKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/GetCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/orders/types/GetCustomAttributeDefinitionsRequest.java
index 1e4ca4e0..36efcc98 100644
--- a/src/main/java/com/squareup/square/orders/types/GetCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/GetCustomAttributeDefinitionsRequest.java
@@ -105,6 +105,10 @@ public interface KeyStage {
     public interface _FinalStage {
         GetCustomAttributeDefinitionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>To enable <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/optimistic-concurrency">optimistic concurrency</a>
          * control, include this optional field and specify the current version of the custom attribute.</p>
@@ -189,5 +193,17 @@ public _FinalStage version(Optional<Integer> version) {
         public GetCustomAttributeDefinitionsRequest build() {
             return new GetCustomAttributeDefinitionsRequest(key, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/GetCustomAttributesRequest.java b/src/main/java/com/squareup/square/orders/types/GetCustomAttributesRequest.java
index 825c8038..1a73174e 100644
--- a/src/main/java/com/squareup/square/orders/types/GetCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/GetCustomAttributesRequest.java
@@ -153,6 +153,10 @@ public interface CustomAttributeKeyStage {
     public interface _FinalStage {
         GetCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>To enable <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/optimistic-concurrency">optimistic concurrency</a>
          * control, include this optional field and specify the current version of the custom attribute.</p>
@@ -311,5 +315,17 @@ public GetCustomAttributesRequest build() {
             return new GetCustomAttributesRequest(
                     orderId, customAttributeKey, version, withDefinition, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/ListCustomAttributeDefinitionsRequest.java b/src/main/java/com/squareup/square/orders/types/ListCustomAttributeDefinitionsRequest.java
index 6d05ce39..30d567f3 100644
--- a/src/main/java/com/squareup/square/orders/types/ListCustomAttributeDefinitionsRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/ListCustomAttributeDefinitionsRequest.java
@@ -234,5 +234,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListCustomAttributeDefinitionsRequest build() {
             return new ListCustomAttributeDefinitionsRequest(visibilityFilter, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/ListCustomAttributesRequest.java b/src/main/java/com/squareup/square/orders/types/ListCustomAttributesRequest.java
index 0bbf69e5..4952764f 100644
--- a/src/main/java/com/squareup/square/orders/types/ListCustomAttributesRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/ListCustomAttributesRequest.java
@@ -180,6 +180,10 @@ public interface OrderIdStage {
     public interface _FinalStage {
         ListCustomAttributesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Requests that all of the custom attributes be returned, or only those that are read-only or read-write.</p>
          */
@@ -433,5 +437,17 @@ public ListCustomAttributesRequest build() {
             return new ListCustomAttributesRequest(
                     orderId, visibilityFilter, cursor, limit, withDefinitions, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/UpdateOrderCustomAttributeDefinitionRequest.java b/src/main/java/com/squareup/square/orders/types/UpdateOrderCustomAttributeDefinitionRequest.java
index 2e03c3d6..55cb553c 100644
--- a/src/main/java/com/squareup/square/orders/types/UpdateOrderCustomAttributeDefinitionRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/UpdateOrderCustomAttributeDefinitionRequest.java
@@ -135,6 +135,10 @@ public interface CustomAttributeDefinitionStage {
     public interface _FinalStage {
         UpdateOrderCustomAttributeDefinitionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -242,5 +246,17 @@ public UpdateOrderCustomAttributeDefinitionRequest build() {
             return new UpdateOrderCustomAttributeDefinitionRequest(
                     key, customAttributeDefinition, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/orders/types/UpsertOrderCustomAttributeRequest.java b/src/main/java/com/squareup/square/orders/types/UpsertOrderCustomAttributeRequest.java
index 5d6775bd..db86327c 100644
--- a/src/main/java/com/squareup/square/orders/types/UpsertOrderCustomAttributeRequest.java
+++ b/src/main/java/com/squareup/square/orders/types/UpsertOrderCustomAttributeRequest.java
@@ -170,6 +170,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         UpsertOrderCustomAttributeRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -308,5 +312,17 @@ public UpsertOrderCustomAttributeRequest build() {
             return new UpsertOrderCustomAttributeRequest(
                     orderId, customAttributeKey, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/teammembers/AsyncRawWageSettingClient.java b/src/main/java/com/squareup/square/teammembers/AsyncRawWageSettingClient.java
index ecaa1bfb..d7dc75a1 100644
--- a/src/main/java/com/squareup/square/teammembers/AsyncRawWageSettingClient.java
+++ b/src/main/java/com/squareup/square/teammembers/AsyncRawWageSettingClient.java
@@ -55,14 +55,18 @@ public CompletableFuture<SquareClientHttpResponse<GetWageSettingResponse>> get(G
      */
     public CompletableFuture<SquareClientHttpResponse<GetWageSettingResponse>> get(
             GetWageSettingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
                 .addPathSegment(request.getTeamMemberId())
-                .addPathSegments("wage-setting")
-                .build();
+                .addPathSegments("wage-setting");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -125,12 +129,16 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWageSettingResponse>> up
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateWageSettingResponse>> update(
             UpdateWageSettingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
                 .addPathSegment(request.getTeamMemberId())
-                .addPathSegments("wage-setting")
-                .build();
+                .addPathSegments("wage-setting");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -139,7 +147,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWageSettingResponse>> up
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/teammembers/RawWageSettingClient.java b/src/main/java/com/squareup/square/teammembers/RawWageSettingClient.java
index f8de4da6..553dc930 100644
--- a/src/main/java/com/squareup/square/teammembers/RawWageSettingClient.java
+++ b/src/main/java/com/squareup/square/teammembers/RawWageSettingClient.java
@@ -51,14 +51,18 @@ public SquareClientHttpResponse<GetWageSettingResponse> get(GetWageSettingReques
      */
     public SquareClientHttpResponse<GetWageSettingResponse> get(
             GetWageSettingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
                 .addPathSegment(request.getTeamMemberId())
-                .addPathSegments("wage-setting")
-                .build();
+                .addPathSegments("wage-setting");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -107,12 +111,16 @@ public SquareClientHttpResponse<UpdateWageSettingResponse> update(UpdateWageSett
      */
     public SquareClientHttpResponse<UpdateWageSettingResponse> update(
             UpdateWageSettingRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/team-members")
                 .addPathSegment(request.getTeamMemberId())
-                .addPathSegments("wage-setting")
-                .build();
+                .addPathSegments("wage-setting");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -121,7 +129,7 @@ public SquareClientHttpResponse<UpdateWageSettingResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/teammembers/types/GetWageSettingRequest.java b/src/main/java/com/squareup/square/teammembers/types/GetWageSettingRequest.java
index 6d34e1fc..7e808c97 100644
--- a/src/main/java/com/squareup/square/teammembers/types/GetWageSettingRequest.java
+++ b/src/main/java/com/squareup/square/teammembers/types/GetWageSettingRequest.java
@@ -76,6 +76,10 @@ public interface TeamMemberIdStage {
 
     public interface _FinalStage {
         GetWageSettingRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage teamMemberId(@NotNull String teamMemberId) {
         public GetWageSettingRequest build() {
             return new GetWageSettingRequest(teamMemberId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/teammembers/types/UpdateWageSettingRequest.java b/src/main/java/com/squareup/square/teammembers/types/UpdateWageSettingRequest.java
index 437b3af1..c1b135c1 100644
--- a/src/main/java/com/squareup/square/teammembers/types/UpdateWageSettingRequest.java
+++ b/src/main/java/com/squareup/square/teammembers/types/UpdateWageSettingRequest.java
@@ -108,6 +108,10 @@ public interface WageSettingStage {
 
     public interface _FinalStage {
         UpdateWageSettingRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -168,5 +172,17 @@ public _FinalStage wageSetting(@NotNull WageSetting wageSetting) {
         public UpdateWageSettingRequest build() {
             return new UpdateWageSettingRequest(teamMemberId, wageSetting, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/AsyncRawActionsClient.java b/src/main/java/com/squareup/square/terminal/AsyncRawActionsClient.java
index 53430e83..e8d57c17 100644
--- a/src/main/java/com/squareup/square/terminal/AsyncRawActionsClient.java
+++ b/src/main/java/com/squareup/square/terminal/AsyncRawActionsClient.java
@@ -52,10 +52,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalActionResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTerminalActionResponse>> create(
             CreateTerminalActionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/actions")
-                .build();
+                .addPathSegments("v2/terminals/actions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -64,7 +68,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalActionResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -132,10 +136,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalActionsResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchTerminalActionsResponse>> search(
             SearchTerminalActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/actions/search")
-                .build();
+                .addPathSegments("v2/terminals/actions/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -144,7 +152,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalActionsResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -196,13 +204,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTerminalActionResponse>> ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetTerminalActionResponse>> get(
             GetActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
-                .addPathSegment(request.getActionId())
-                .build();
+                .addPathSegment(request.getActionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -254,14 +266,18 @@ public CompletableFuture<SquareClientHttpResponse<CancelTerminalActionResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CancelTerminalActionResponse>> cancel(
             CancelActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
                 .addPathSegment(request.getActionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/AsyncRawCheckoutsClient.java b/src/main/java/com/squareup/square/terminal/AsyncRawCheckoutsClient.java
index 84d973af..b939228b 100644
--- a/src/main/java/com/squareup/square/terminal/AsyncRawCheckoutsClient.java
+++ b/src/main/java/com/squareup/square/terminal/AsyncRawCheckoutsClient.java
@@ -54,10 +54,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalCheckoutResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTerminalCheckoutResponse>> create(
             CreateTerminalCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/checkouts")
-                .build();
+                .addPathSegments("v2/terminals/checkouts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -66,7 +70,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalCheckoutResponse
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -134,10 +138,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalCheckoutsRespons
      */
     public CompletableFuture<SquareClientHttpResponse<SearchTerminalCheckoutsResponse>> search(
             SearchTerminalCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/checkouts/search")
-                .build();
+                .addPathSegments("v2/terminals/checkouts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -146,7 +154,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalCheckoutsRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -198,13 +206,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTerminalCheckoutResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<GetTerminalCheckoutResponse>> get(
             GetCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
-                .addPathSegment(request.getCheckoutId())
-                .build();
+                .addPathSegment(request.getCheckoutId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -256,14 +268,18 @@ public CompletableFuture<SquareClientHttpResponse<CancelTerminalCheckoutResponse
      */
     public CompletableFuture<SquareClientHttpResponse<CancelTerminalCheckoutResponse>> cancel(
             CancelCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
                 .addPathSegment(request.getCheckoutId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/AsyncRawRefundsClient.java b/src/main/java/com/squareup/square/terminal/AsyncRawRefundsClient.java
index 0b90c60f..00c3a6c7 100644
--- a/src/main/java/com/squareup/square/terminal/AsyncRawRefundsClient.java
+++ b/src/main/java/com/squareup/square/terminal/AsyncRawRefundsClient.java
@@ -52,10 +52,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalRefundResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CreateTerminalRefundResponse>> create(
             CreateTerminalRefundRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/refunds")
-                .build();
+                .addPathSegments("v2/terminals/refunds");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -64,7 +68,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateTerminalRefundResponse>>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -132,10 +136,14 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalRefundsResponse>
      */
     public CompletableFuture<SquareClientHttpResponse<SearchTerminalRefundsResponse>> search(
             SearchTerminalRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/refunds/search")
-                .build();
+                .addPathSegments("v2/terminals/refunds/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -144,7 +152,7 @@ public CompletableFuture<SquareClientHttpResponse<SearchTerminalRefundsResponse>
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -196,13 +204,17 @@ public CompletableFuture<SquareClientHttpResponse<GetTerminalRefundResponse>> ge
      */
     public CompletableFuture<SquareClientHttpResponse<GetTerminalRefundResponse>> get(
             GetRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
-                .addPathSegment(request.getTerminalRefundId())
-                .build();
+                .addPathSegment(request.getTerminalRefundId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -254,14 +266,18 @@ public CompletableFuture<SquareClientHttpResponse<CancelTerminalRefundResponse>>
      */
     public CompletableFuture<SquareClientHttpResponse<CancelTerminalRefundResponse>> cancel(
             CancelRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
                 .addPathSegment(request.getTerminalRefundId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/RawActionsClient.java b/src/main/java/com/squareup/square/terminal/RawActionsClient.java
index 4c61283c..121d8662 100644
--- a/src/main/java/com/squareup/square/terminal/RawActionsClient.java
+++ b/src/main/java/com/squareup/square/terminal/RawActionsClient.java
@@ -47,10 +47,14 @@ public SquareClientHttpResponse<CreateTerminalActionResponse> create(CreateTermi
      */
     public SquareClientHttpResponse<CreateTerminalActionResponse> create(
             CreateTerminalActionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/actions")
-                .build();
+                .addPathSegments("v2/terminals/actions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -59,7 +63,7 @@ public SquareClientHttpResponse<CreateTerminalActionResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -111,10 +115,14 @@ public SquareClientHttpResponse<SearchTerminalActionsResponse> search(SearchTerm
      */
     public SquareClientHttpResponse<SearchTerminalActionsResponse> search(
             SearchTerminalActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/actions/search")
-                .build();
+                .addPathSegments("v2/terminals/actions/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -123,7 +131,7 @@ public SquareClientHttpResponse<SearchTerminalActionsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -161,13 +169,17 @@ public SquareClientHttpResponse<GetTerminalActionResponse> get(GetActionsRequest
      */
     public SquareClientHttpResponse<GetTerminalActionResponse> get(
             GetActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
-                .addPathSegment(request.getActionId())
-                .build();
+                .addPathSegment(request.getActionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -204,14 +216,18 @@ public SquareClientHttpResponse<CancelTerminalActionResponse> cancel(CancelActio
      */
     public SquareClientHttpResponse<CancelTerminalActionResponse> cancel(
             CancelActionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/actions")
                 .addPathSegment(request.getActionId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/RawCheckoutsClient.java b/src/main/java/com/squareup/square/terminal/RawCheckoutsClient.java
index 476615e3..350ed3af 100644
--- a/src/main/java/com/squareup/square/terminal/RawCheckoutsClient.java
+++ b/src/main/java/com/squareup/square/terminal/RawCheckoutsClient.java
@@ -49,10 +49,14 @@ public SquareClientHttpResponse<CreateTerminalCheckoutResponse> create(CreateTer
      */
     public SquareClientHttpResponse<CreateTerminalCheckoutResponse> create(
             CreateTerminalCheckoutRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/checkouts")
-                .build();
+                .addPathSegments("v2/terminals/checkouts");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -61,7 +65,7 @@ public SquareClientHttpResponse<CreateTerminalCheckoutResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -113,10 +117,14 @@ public SquareClientHttpResponse<SearchTerminalCheckoutsResponse> search(SearchTe
      */
     public SquareClientHttpResponse<SearchTerminalCheckoutsResponse> search(
             SearchTerminalCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/checkouts/search")
-                .build();
+                .addPathSegments("v2/terminals/checkouts/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -125,7 +133,7 @@ public SquareClientHttpResponse<SearchTerminalCheckoutsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -163,13 +171,17 @@ public SquareClientHttpResponse<GetTerminalCheckoutResponse> get(GetCheckoutsReq
      */
     public SquareClientHttpResponse<GetTerminalCheckoutResponse> get(
             GetCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
-                .addPathSegment(request.getCheckoutId())
-                .build();
+                .addPathSegment(request.getCheckoutId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -206,14 +218,18 @@ public SquareClientHttpResponse<CancelTerminalCheckoutResponse> cancel(CancelChe
      */
     public SquareClientHttpResponse<CancelTerminalCheckoutResponse> cancel(
             CancelCheckoutsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/checkouts")
                 .addPathSegment(request.getCheckoutId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/RawRefundsClient.java b/src/main/java/com/squareup/square/terminal/RawRefundsClient.java
index b34937c6..4c3195c1 100644
--- a/src/main/java/com/squareup/square/terminal/RawRefundsClient.java
+++ b/src/main/java/com/squareup/square/terminal/RawRefundsClient.java
@@ -47,10 +47,14 @@ public SquareClientHttpResponse<CreateTerminalRefundResponse> create(CreateTermi
      */
     public SquareClientHttpResponse<CreateTerminalRefundResponse> create(
             CreateTerminalRefundRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/refunds")
-                .build();
+                .addPathSegments("v2/terminals/refunds");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -59,7 +63,7 @@ public SquareClientHttpResponse<CreateTerminalRefundResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -111,10 +115,14 @@ public SquareClientHttpResponse<SearchTerminalRefundsResponse> search(SearchTerm
      */
     public SquareClientHttpResponse<SearchTerminalRefundsResponse> search(
             SearchTerminalRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/terminals/refunds/search")
-                .build();
+                .addPathSegments("v2/terminals/refunds/search");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -123,7 +131,7 @@ public SquareClientHttpResponse<SearchTerminalRefundsResponse> search(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -161,13 +169,17 @@ public SquareClientHttpResponse<GetTerminalRefundResponse> get(GetRefundsRequest
      */
     public SquareClientHttpResponse<GetTerminalRefundResponse> get(
             GetRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
-                .addPathSegment(request.getTerminalRefundId())
-                .build();
+                .addPathSegment(request.getTerminalRefundId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -204,14 +216,18 @@ public SquareClientHttpResponse<CancelTerminalRefundResponse> cancel(CancelRefun
      */
     public SquareClientHttpResponse<CancelTerminalRefundResponse> cancel(
             CancelRefundsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/terminals/refunds")
                 .addPathSegment(request.getTerminalRefundId())
-                .addPathSegments("cancel")
-                .build();
+                .addPathSegments("cancel");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", RequestBody.create("", null))
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
diff --git a/src/main/java/com/squareup/square/terminal/types/CancelActionsRequest.java b/src/main/java/com/squareup/square/terminal/types/CancelActionsRequest.java
index 0d56c15d..eb3122f3 100644
--- a/src/main/java/com/squareup/square/terminal/types/CancelActionsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CancelActionsRequest.java
@@ -76,6 +76,10 @@ public interface ActionIdStage {
 
     public interface _FinalStage {
         CancelActionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage actionId(@NotNull String actionId) {
         public CancelActionsRequest build() {
             return new CancelActionsRequest(actionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/CancelCheckoutsRequest.java b/src/main/java/com/squareup/square/terminal/types/CancelCheckoutsRequest.java
index 2c65c868..82551393 100644
--- a/src/main/java/com/squareup/square/terminal/types/CancelCheckoutsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CancelCheckoutsRequest.java
@@ -76,6 +76,10 @@ public interface CheckoutIdStage {
 
     public interface _FinalStage {
         CancelCheckoutsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage checkoutId(@NotNull String checkoutId) {
         public CancelCheckoutsRequest build() {
             return new CancelCheckoutsRequest(checkoutId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/CancelRefundsRequest.java b/src/main/java/com/squareup/square/terminal/types/CancelRefundsRequest.java
index 5f088eb9..c3c93161 100644
--- a/src/main/java/com/squareup/square/terminal/types/CancelRefundsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CancelRefundsRequest.java
@@ -76,6 +76,10 @@ public interface TerminalRefundIdStage {
 
     public interface _FinalStage {
         CancelRefundsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage terminalRefundId(@NotNull String terminalRefundId) {
         public CancelRefundsRequest build() {
             return new CancelRefundsRequest(terminalRefundId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/CreateTerminalActionRequest.java b/src/main/java/com/squareup/square/terminal/types/CreateTerminalActionRequest.java
index 121d77c6..61e8823f 100644
--- a/src/main/java/com/squareup/square/terminal/types/CreateTerminalActionRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CreateTerminalActionRequest.java
@@ -102,6 +102,10 @@ public interface ActionStage {
 
     public interface _FinalStage {
         CreateTerminalActionRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -156,5 +160,17 @@ public _FinalStage action(@NotNull TerminalAction action) {
         public CreateTerminalActionRequest build() {
             return new CreateTerminalActionRequest(idempotencyKey, action, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/CreateTerminalCheckoutRequest.java b/src/main/java/com/squareup/square/terminal/types/CreateTerminalCheckoutRequest.java
index faa7af46..d282d0c4 100644
--- a/src/main/java/com/squareup/square/terminal/types/CreateTerminalCheckoutRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CreateTerminalCheckoutRequest.java
@@ -100,6 +100,10 @@ public interface CheckoutStage {
 
     public interface _FinalStage {
         CreateTerminalCheckoutRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -152,5 +156,17 @@ public _FinalStage checkout(@NotNull TerminalCheckout checkout) {
         public CreateTerminalCheckoutRequest build() {
             return new CreateTerminalCheckoutRequest(idempotencyKey, checkout, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/CreateTerminalRefundRequest.java b/src/main/java/com/squareup/square/terminal/types/CreateTerminalRefundRequest.java
index fa38323b..1111108c 100644
--- a/src/main/java/com/squareup/square/terminal/types/CreateTerminalRefundRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/CreateTerminalRefundRequest.java
@@ -96,6 +96,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         CreateTerminalRefundRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The refund to create.</p>
          */
@@ -162,5 +166,17 @@ public _FinalStage refund(Optional<TerminalRefund> refund) {
         public CreateTerminalRefundRequest build() {
             return new CreateTerminalRefundRequest(idempotencyKey, refund, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/GetActionsRequest.java b/src/main/java/com/squareup/square/terminal/types/GetActionsRequest.java
index 103f691f..a761181e 100644
--- a/src/main/java/com/squareup/square/terminal/types/GetActionsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/GetActionsRequest.java
@@ -76,6 +76,10 @@ public interface ActionIdStage {
 
     public interface _FinalStage {
         GetActionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage actionId(@NotNull String actionId) {
         public GetActionsRequest build() {
             return new GetActionsRequest(actionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/GetCheckoutsRequest.java b/src/main/java/com/squareup/square/terminal/types/GetCheckoutsRequest.java
index c97b0b48..94760a6a 100644
--- a/src/main/java/com/squareup/square/terminal/types/GetCheckoutsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/GetCheckoutsRequest.java
@@ -76,6 +76,10 @@ public interface CheckoutIdStage {
 
     public interface _FinalStage {
         GetCheckoutsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage checkoutId(@NotNull String checkoutId) {
         public GetCheckoutsRequest build() {
             return new GetCheckoutsRequest(checkoutId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/GetRefundsRequest.java b/src/main/java/com/squareup/square/terminal/types/GetRefundsRequest.java
index f7bd7a03..c212f90c 100644
--- a/src/main/java/com/squareup/square/terminal/types/GetRefundsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/GetRefundsRequest.java
@@ -76,6 +76,10 @@ public interface TerminalRefundIdStage {
 
     public interface _FinalStage {
         GetRefundsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage terminalRefundId(@NotNull String terminalRefundId) {
         public GetRefundsRequest build() {
             return new GetRefundsRequest(terminalRefundId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/SearchTerminalActionsRequest.java b/src/main/java/com/squareup/square/terminal/types/SearchTerminalActionsRequest.java
index 7dc1761f..b25e4b02 100644
--- a/src/main/java/com/squareup/square/terminal/types/SearchTerminalActionsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/SearchTerminalActionsRequest.java
@@ -166,5 +166,15 @@ public Builder limit(Integer limit) {
         public SearchTerminalActionsRequest build() {
             return new SearchTerminalActionsRequest(query, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/SearchTerminalCheckoutsRequest.java b/src/main/java/com/squareup/square/terminal/types/SearchTerminalCheckoutsRequest.java
index ef4de229..4c5660a5 100644
--- a/src/main/java/com/squareup/square/terminal/types/SearchTerminalCheckoutsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/SearchTerminalCheckoutsRequest.java
@@ -164,5 +164,15 @@ public Builder limit(Integer limit) {
         public SearchTerminalCheckoutsRequest build() {
             return new SearchTerminalCheckoutsRequest(query, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/terminal/types/SearchTerminalRefundsRequest.java b/src/main/java/com/squareup/square/terminal/types/SearchTerminalRefundsRequest.java
index 837fddee..543f09a6 100644
--- a/src/main/java/com/squareup/square/terminal/types/SearchTerminalRefundsRequest.java
+++ b/src/main/java/com/squareup/square/terminal/types/SearchTerminalRefundsRequest.java
@@ -164,5 +164,15 @@ public Builder limit(Integer limit) {
         public SearchTerminalRefundsRequest build() {
             return new SearchTerminalRefundsRequest(query, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AcceptDisputeResponse.java b/src/main/java/com/squareup/square/types/AcceptDisputeResponse.java
index e6d3ddb8..86dba4bb 100644
--- a/src/main/java/com/squareup/square/types/AcceptDisputeResponse.java
+++ b/src/main/java/com/squareup/square/types/AcceptDisputeResponse.java
@@ -127,5 +127,15 @@ public Builder dispute(Dispute dispute) {
         public AcceptDisputeResponse build() {
             return new AcceptDisputeResponse(errors, dispute, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AcceptDisputesRequest.java b/src/main/java/com/squareup/square/types/AcceptDisputesRequest.java
index 366a00b7..37e1e06c 100644
--- a/src/main/java/com/squareup/square/types/AcceptDisputesRequest.java
+++ b/src/main/java/com/squareup/square/types/AcceptDisputesRequest.java
@@ -76,6 +76,10 @@ public interface DisputeIdStage {
 
     public interface _FinalStage {
         AcceptDisputesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage disputeId(@NotNull String disputeId) {
         public AcceptDisputesRequest build() {
             return new AcceptDisputesRequest(disputeId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AcceptedPaymentMethods.java b/src/main/java/com/squareup/square/types/AcceptedPaymentMethods.java
index 1c126401..72c398cd 100644
--- a/src/main/java/com/squareup/square/types/AcceptedPaymentMethods.java
+++ b/src/main/java/com/squareup/square/types/AcceptedPaymentMethods.java
@@ -272,5 +272,15 @@ public Builder afterpayClearpay(Nullable<Boolean> afterpayClearpay) {
         public AcceptedPaymentMethods build() {
             return new AcceptedPaymentMethods(applePay, googlePay, cashAppPay, afterpayClearpay, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AccumulateLoyaltyPointsResponse.java b/src/main/java/com/squareup/square/types/AccumulateLoyaltyPointsResponse.java
index ed9a5fb2..f65e4d92 100644
--- a/src/main/java/com/squareup/square/types/AccumulateLoyaltyPointsResponse.java
+++ b/src/main/java/com/squareup/square/types/AccumulateLoyaltyPointsResponse.java
@@ -162,5 +162,15 @@ public Builder events(List<LoyaltyEvent> events) {
         public AccumulateLoyaltyPointsResponse build() {
             return new AccumulateLoyaltyPointsResponse(errors, event, events, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AchDetails.java b/src/main/java/com/squareup/square/types/AchDetails.java
index 5d8c16ce..64d179c2 100644
--- a/src/main/java/com/squareup/square/types/AchDetails.java
+++ b/src/main/java/com/squareup/square/types/AchDetails.java
@@ -224,5 +224,15 @@ public Builder accountType(Nullable<String> accountType) {
         public AchDetails build() {
             return new AchDetails(routingNumber, accountNumberSuffix, accountType, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AddGroupToCustomerResponse.java b/src/main/java/com/squareup/square/types/AddGroupToCustomerResponse.java
index 90e58da6..609876d2 100644
--- a/src/main/java/com/squareup/square/types/AddGroupToCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/AddGroupToCustomerResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public AddGroupToCustomerResponse build() {
             return new AddGroupToCustomerResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AdditionalRecipient.java b/src/main/java/com/squareup/square/types/AdditionalRecipient.java
index a5f18913..e0725e9b 100644
--- a/src/main/java/com/squareup/square/types/AdditionalRecipient.java
+++ b/src/main/java/com/squareup/square/types/AdditionalRecipient.java
@@ -148,6 +148,10 @@ public interface AmountMoneyStage {
     public interface _FinalStage {
         AdditionalRecipient build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The description of the additional recipient.</p>
          */
@@ -291,5 +295,17 @@ public _FinalStage description(Optional<String> description) {
         public AdditionalRecipient build() {
             return new AdditionalRecipient(locationId, description, amountMoney, receivableId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Address.java b/src/main/java/com/squareup/square/types/Address.java
index ac5e7705..486263aa 100644
--- a/src/main/java/com/squareup/square/types/Address.java
+++ b/src/main/java/com/squareup/square/types/Address.java
@@ -797,5 +797,15 @@ public Address build() {
                     lastName,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AdjustLoyaltyPointsResponse.java b/src/main/java/com/squareup/square/types/AdjustLoyaltyPointsResponse.java
index 2669a8a4..d06d6211 100644
--- a/src/main/java/com/squareup/square/types/AdjustLoyaltyPointsResponse.java
+++ b/src/main/java/com/squareup/square/types/AdjustLoyaltyPointsResponse.java
@@ -127,5 +127,15 @@ public Builder event(LoyaltyEvent event) {
         public AdjustLoyaltyPointsResponse build() {
             return new AdjustLoyaltyPointsResponse(errors, event, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AfterpayDetails.java b/src/main/java/com/squareup/square/types/AfterpayDetails.java
index 2d551070..4898ceb3 100644
--- a/src/main/java/com/squareup/square/types/AfterpayDetails.java
+++ b/src/main/java/com/squareup/square/types/AfterpayDetails.java
@@ -120,5 +120,15 @@ public Builder emailAddress(Nullable<String> emailAddress) {
         public AfterpayDetails build() {
             return new AfterpayDetails(emailAddress, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ApplicationDetails.java b/src/main/java/com/squareup/square/types/ApplicationDetails.java
index a57306b8..11d073e4 100644
--- a/src/main/java/com/squareup/square/types/ApplicationDetails.java
+++ b/src/main/java/com/squareup/square/types/ApplicationDetails.java
@@ -167,5 +167,15 @@ public Builder applicationId(Nullable<String> applicationId) {
         public ApplicationDetails build() {
             return new ApplicationDetails(squareProduct, applicationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/AppointmentSegment.java b/src/main/java/com/squareup/square/types/AppointmentSegment.java
index 98ce38a5..d09ecf6e 100644
--- a/src/main/java/com/squareup/square/types/AppointmentSegment.java
+++ b/src/main/java/com/squareup/square/types/AppointmentSegment.java
@@ -197,6 +197,10 @@ public interface TeamMemberIdStage {
     public interface _FinalStage {
         AppointmentSegment build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The time span in minutes of an appointment segment.</p>
          */
@@ -471,5 +475,17 @@ public AppointmentSegment build() {
                     resourceIds,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Availability.java b/src/main/java/com/squareup/square/types/Availability.java
index bad43275..2b4ef10e 100644
--- a/src/main/java/com/squareup/square/types/Availability.java
+++ b/src/main/java/com/squareup/square/types/Availability.java
@@ -203,5 +203,15 @@ public Builder appointmentSegments(Nullable<List<AppointmentSegment>> appointmen
         public Availability build() {
             return new Availability(startAt, locationId, appointmentSegments, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccount.java b/src/main/java/com/squareup/square/types/BankAccount.java
index 8fd1fa13..2b2edd99 100644
--- a/src/main/java/com/squareup/square/types/BankAccount.java
+++ b/src/main/java/com/squareup/square/types/BankAccount.java
@@ -464,6 +464,10 @@ public interface DebitableStage {
     public interface _FinalStage {
         BankAccount build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Secondary identifier for the bank. For more information, see
          * <a href="https://developer.squareup.com/docs/bank-accounts-api">Bank Accounts API</a>.</p>
@@ -1053,5 +1057,17 @@ public BankAccount build() {
                     customerId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountCreatedEvent.java b/src/main/java/com/squareup/square/types/BankAccountCreatedEvent.java
index ab85a32e..249b71a7 100644
--- a/src/main/java/com/squareup/square/types/BankAccountCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BankAccountCreatedEvent.java
@@ -333,5 +333,15 @@ public BankAccountCreatedEvent build() {
             return new BankAccountCreatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountCreatedEventData.java b/src/main/java/com/squareup/square/types/BankAccountCreatedEventData.java
index 43c21ae1..22acc4fb 100644
--- a/src/main/java/com/squareup/square/types/BankAccountCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/BankAccountCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(BankAccountCreatedEventObject object) {
         public BankAccountCreatedEventData build() {
             return new BankAccountCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountCreatedEventObject.java b/src/main/java/com/squareup/square/types/BankAccountCreatedEventObject.java
index 0a2d6bcc..f4251cf5 100644
--- a/src/main/java/com/squareup/square/types/BankAccountCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/BankAccountCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder bankAccount(BankAccount bankAccount) {
         public BankAccountCreatedEventObject build() {
             return new BankAccountCreatedEventObject(bankAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountDisabledEvent.java b/src/main/java/com/squareup/square/types/BankAccountDisabledEvent.java
index 54fd314f..7b2f369c 100644
--- a/src/main/java/com/squareup/square/types/BankAccountDisabledEvent.java
+++ b/src/main/java/com/squareup/square/types/BankAccountDisabledEvent.java
@@ -333,5 +333,15 @@ public BankAccountDisabledEvent build() {
             return new BankAccountDisabledEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountDisabledEventData.java b/src/main/java/com/squareup/square/types/BankAccountDisabledEventData.java
index b5f57707..49e8406a 100644
--- a/src/main/java/com/squareup/square/types/BankAccountDisabledEventData.java
+++ b/src/main/java/com/squareup/square/types/BankAccountDisabledEventData.java
@@ -180,5 +180,15 @@ public Builder object(BankAccountDisabledEventObject object) {
         public BankAccountDisabledEventData build() {
             return new BankAccountDisabledEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountDisabledEventObject.java b/src/main/java/com/squareup/square/types/BankAccountDisabledEventObject.java
index 14a6c682..eaf22c2e 100644
--- a/src/main/java/com/squareup/square/types/BankAccountDisabledEventObject.java
+++ b/src/main/java/com/squareup/square/types/BankAccountDisabledEventObject.java
@@ -98,5 +98,15 @@ public Builder bankAccount(BankAccount bankAccount) {
         public BankAccountDisabledEventObject build() {
             return new BankAccountDisabledEventObject(bankAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountPaymentDetails.java b/src/main/java/com/squareup/square/types/BankAccountPaymentDetails.java
index fb6c0103..dcd6f0cf 100644
--- a/src/main/java/com/squareup/square/types/BankAccountPaymentDetails.java
+++ b/src/main/java/com/squareup/square/types/BankAccountPaymentDetails.java
@@ -476,5 +476,15 @@ public BankAccountPaymentDetails build() {
                     errors,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountVerifiedEvent.java b/src/main/java/com/squareup/square/types/BankAccountVerifiedEvent.java
index 989a1cc2..0150b81c 100644
--- a/src/main/java/com/squareup/square/types/BankAccountVerifiedEvent.java
+++ b/src/main/java/com/squareup/square/types/BankAccountVerifiedEvent.java
@@ -333,5 +333,15 @@ public BankAccountVerifiedEvent build() {
             return new BankAccountVerifiedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountVerifiedEventData.java b/src/main/java/com/squareup/square/types/BankAccountVerifiedEventData.java
index f8fa864c..092ef34f 100644
--- a/src/main/java/com/squareup/square/types/BankAccountVerifiedEventData.java
+++ b/src/main/java/com/squareup/square/types/BankAccountVerifiedEventData.java
@@ -180,5 +180,15 @@ public Builder object(BankAccountVerifiedEventObject object) {
         public BankAccountVerifiedEventData build() {
             return new BankAccountVerifiedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BankAccountVerifiedEventObject.java b/src/main/java/com/squareup/square/types/BankAccountVerifiedEventObject.java
index c9382569..07e5a86a 100644
--- a/src/main/java/com/squareup/square/types/BankAccountVerifiedEventObject.java
+++ b/src/main/java/com/squareup/square/types/BankAccountVerifiedEventObject.java
@@ -98,5 +98,15 @@ public Builder bankAccount(BankAccount bankAccount) {
         public BankAccountVerifiedEventObject build() {
             return new BankAccountVerifiedEventObject(bankAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchChangeInventoryRequest.java b/src/main/java/com/squareup/square/types/BatchChangeInventoryRequest.java
index 8c32642a..c5baedaf 100644
--- a/src/main/java/com/squareup/square/types/BatchChangeInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchChangeInventoryRequest.java
@@ -140,6 +140,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         BatchChangeInventoryRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The set of physical counts and inventory adjustments to be made.
          * Changes are applied based on the client-supplied timestamp and may be sent
@@ -289,5 +293,17 @@ public BatchChangeInventoryRequest build() {
             return new BatchChangeInventoryRequest(
                     idempotencyKey, changes, ignoreUnchangedCounts, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchChangeInventoryResponse.java b/src/main/java/com/squareup/square/types/BatchChangeInventoryResponse.java
index 7e120d12..bd286fab 100644
--- a/src/main/java/com/squareup/square/types/BatchChangeInventoryResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchChangeInventoryResponse.java
@@ -158,5 +158,15 @@ public Builder changes(List<InventoryChange> changes) {
         public BatchChangeInventoryResponse build() {
             return new BatchChangeInventoryResponse(errors, counts, changes, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchCreateTeamMembersRequest.java b/src/main/java/com/squareup/square/types/BatchCreateTeamMembersRequest.java
index da498ff0..cded61f7 100644
--- a/src/main/java/com/squareup/square/types/BatchCreateTeamMembersRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchCreateTeamMembersRequest.java
@@ -114,5 +114,15 @@ public Builder teamMembers(String key, CreateTeamMemberRequest value) {
         public BatchCreateTeamMembersRequest build() {
             return new BatchCreateTeamMembersRequest(teamMembers, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchCreateTeamMembersResponse.java b/src/main/java/com/squareup/square/types/BatchCreateTeamMembersResponse.java
index 04dc6284..80f9018c 100644
--- a/src/main/java/com/squareup/square/types/BatchCreateTeamMembersResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchCreateTeamMembersResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public BatchCreateTeamMembersResponse build() {
             return new BatchCreateTeamMembersResponse(teamMembers, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchCreateVendorsRequest.java b/src/main/java/com/squareup/square/types/BatchCreateVendorsRequest.java
index c1ddbc7e..dc73789d 100644
--- a/src/main/java/com/squareup/square/types/BatchCreateVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchCreateVendorsRequest.java
@@ -107,5 +107,15 @@ public Builder vendors(String key, Vendor value) {
         public BatchCreateVendorsRequest build() {
             return new BatchCreateVendorsRequest(vendors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchCreateVendorsResponse.java b/src/main/java/com/squareup/square/types/BatchCreateVendorsResponse.java
index c5c583e6..af7a5ff6 100644
--- a/src/main/java/com/squareup/square/types/BatchCreateVendorsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchCreateVendorsResponse.java
@@ -135,5 +135,15 @@ public Builder responses(Map<String, CreateVendorResponse> responses) {
         public BatchCreateVendorsResponse build() {
             return new BatchCreateVendorsResponse(errors, responses, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsRequest.java b/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsRequest.java
index 55025c3f..2627b45a 100644
--- a/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsRequest.java
@@ -112,5 +112,15 @@ public Builder addAllObjectIds(List<String> objectIds) {
         public BatchDeleteCatalogObjectsRequest build() {
             return new BatchDeleteCatalogObjectsRequest(objectIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsResponse.java b/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsResponse.java
index 6abc2080..7b344803 100644
--- a/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchDeleteCatalogObjectsResponse.java
@@ -160,5 +160,15 @@ public Builder deletedAt(String deletedAt) {
         public BatchDeleteCatalogObjectsResponse build() {
             return new BatchDeleteCatalogObjectsResponse(errors, deletedObjectIds, deletedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsRequest.java b/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsRequest.java
index 0e11ebf7..ec17817d 100644
--- a/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsRequest.java
@@ -359,5 +359,15 @@ public BatchGetCatalogObjectsRequest build() {
                     includeCategoryPathToRoot,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsResponse.java b/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsResponse.java
index ac45660d..96522eb3 100644
--- a/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchGetCatalogObjectsResponse.java
@@ -160,5 +160,15 @@ public Builder relatedObjects(List<CatalogObject> relatedObjects) {
         public BatchGetCatalogObjectsResponse build() {
             return new BatchGetCatalogObjectsResponse(errors, objects, relatedObjects, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetInventoryChangesResponse.java b/src/main/java/com/squareup/square/types/BatchGetInventoryChangesResponse.java
index 5c616c40..ed8649b5 100644
--- a/src/main/java/com/squareup/square/types/BatchGetInventoryChangesResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchGetInventoryChangesResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public BatchGetInventoryChangesResponse build() {
             return new BatchGetInventoryChangesResponse(errors, changes, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetInventoryCountsRequest.java b/src/main/java/com/squareup/square/types/BatchGetInventoryCountsRequest.java
index 67a3affd..c50ff47d 100644
--- a/src/main/java/com/squareup/square/types/BatchGetInventoryCountsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchGetInventoryCountsRequest.java
@@ -391,5 +391,15 @@ public BatchGetInventoryCountsRequest build() {
             return new BatchGetInventoryCountsRequest(
                     catalogObjectIds, locationIds, updatedAfter, cursor, states, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetInventoryCountsResponse.java b/src/main/java/com/squareup/square/types/BatchGetInventoryCountsResponse.java
index d0a4fff3..5da204e0 100644
--- a/src/main/java/com/squareup/square/types/BatchGetInventoryCountsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchGetInventoryCountsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public BatchGetInventoryCountsResponse build() {
             return new BatchGetInventoryCountsResponse(errors, counts, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetOrdersRequest.java b/src/main/java/com/squareup/square/types/BatchGetOrdersRequest.java
index f0f05773..e572214c 100644
--- a/src/main/java/com/squareup/square/types/BatchGetOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchGetOrdersRequest.java
@@ -163,5 +163,15 @@ public Builder addAllOrderIds(List<String> orderIds) {
         public BatchGetOrdersRequest build() {
             return new BatchGetOrdersRequest(locationId, orderIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetOrdersResponse.java b/src/main/java/com/squareup/square/types/BatchGetOrdersResponse.java
index 379038b6..bb3547c9 100644
--- a/src/main/java/com/squareup/square/types/BatchGetOrdersResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchGetOrdersResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public BatchGetOrdersResponse build() {
             return new BatchGetOrdersResponse(orders, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetVendorsRequest.java b/src/main/java/com/squareup/square/types/BatchGetVendorsRequest.java
index ce16cdf3..6dd62608 100644
--- a/src/main/java/com/squareup/square/types/BatchGetVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchGetVendorsRequest.java
@@ -121,5 +121,15 @@ public Builder vendorIds(Nullable<List<String>> vendorIds) {
         public BatchGetVendorsRequest build() {
             return new BatchGetVendorsRequest(vendorIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchGetVendorsResponse.java b/src/main/java/com/squareup/square/types/BatchGetVendorsResponse.java
index 668b51f3..76abfa04 100644
--- a/src/main/java/com/squareup/square/types/BatchGetVendorsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchGetVendorsResponse.java
@@ -133,5 +133,15 @@ public Builder responses(Map<String, GetVendorResponse> responses) {
         public BatchGetVendorsResponse build() {
             return new BatchGetVendorsResponse(errors, responses, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchRetrieveInventoryChangesRequest.java b/src/main/java/com/squareup/square/types/BatchRetrieveInventoryChangesRequest.java
index 78641ae1..ad92c2e5 100644
--- a/src/main/java/com/squareup/square/types/BatchRetrieveInventoryChangesRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchRetrieveInventoryChangesRequest.java
@@ -513,5 +513,15 @@ public BatchRetrieveInventoryChangesRequest build() {
                     limit,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersRequest.java b/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersRequest.java
index 0aabc1de..e8a23123 100644
--- a/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersRequest.java
@@ -116,5 +116,15 @@ public Builder teamMembers(String key, UpdateTeamMemberRequest value) {
         public BatchUpdateTeamMembersRequest build() {
             return new BatchUpdateTeamMembersRequest(teamMembers, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersResponse.java b/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersResponse.java
index 206eed1f..739b70b0 100644
--- a/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchUpdateTeamMembersResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public BatchUpdateTeamMembersResponse build() {
             return new BatchUpdateTeamMembersResponse(teamMembers, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpdateVendorsRequest.java b/src/main/java/com/squareup/square/types/BatchUpdateVendorsRequest.java
index a13343bf..fe5b72a2 100644
--- a/src/main/java/com/squareup/square/types/BatchUpdateVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchUpdateVendorsRequest.java
@@ -110,5 +110,15 @@ public Builder vendors(String key, UpdateVendorRequest value) {
         public BatchUpdateVendorsRequest build() {
             return new BatchUpdateVendorsRequest(vendors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpdateVendorsResponse.java b/src/main/java/com/squareup/square/types/BatchUpdateVendorsResponse.java
index 999126a8..a4e0fa08 100644
--- a/src/main/java/com/squareup/square/types/BatchUpdateVendorsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchUpdateVendorsResponse.java
@@ -133,5 +133,15 @@ public Builder responses(Map<String, UpdateVendorResponse> responses) {
         public BatchUpdateVendorsResponse build() {
             return new BatchUpdateVendorsResponse(errors, responses, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsRequest.java b/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsRequest.java
index 821c0b01..696be3f0 100644
--- a/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsRequest.java
@@ -121,6 +121,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         BatchUpsertCatalogObjectsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A batch of CatalogObjects to be inserted/updated atomically.
          * The objects within a batch will be inserted in an all-or-nothing fashion, i.e., if an error occurs
@@ -274,5 +278,17 @@ public _FinalStage batches(List<CatalogObjectBatch> batches) {
         public BatchUpsertCatalogObjectsRequest build() {
             return new BatchUpsertCatalogObjectsRequest(idempotencyKey, batches, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsResponse.java b/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsResponse.java
index c1839e58..9901add9 100644
--- a/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchUpsertCatalogObjectsResponse.java
@@ -190,5 +190,15 @@ public Builder idMappings(List<CatalogIdMapping> idMappings) {
         public BatchUpsertCatalogObjectsResponse build() {
             return new BatchUpsertCatalogObjectsResponse(errors, objects, updatedAt, idMappings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest.java b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest.java
index 88d472d3..9b3b9c91 100644
--- a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest.java
+++ b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest.java
@@ -158,6 +158,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this individual upsert request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -288,5 +292,17 @@ public BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRe
             return new BatchUpsertCustomerCustomAttributesRequestCustomerCustomAttributeUpsertRequest(
                     customerId, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponse.java
index c04bbf28..6ec0c653 100644
--- a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponse.java
@@ -140,5 +140,15 @@ public Builder errors(List<Error> errors) {
         public BatchUpsertCustomerCustomAttributesResponse build() {
             return new BatchUpsertCustomerCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertResponse.java b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertResponse.java
index 99486008..39c66b9f 100644
--- a/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertResponse.java
+++ b/src/main/java/com/squareup/square/types/BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertResponse.java
@@ -163,5 +163,15 @@ public BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertR
             return new BatchUpsertCustomerCustomAttributesResponseCustomerCustomAttributeUpsertResponse(
                     customerId, customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Booking.java b/src/main/java/com/squareup/square/types/Booking.java
index 3c07849e..75ab8a46 100644
--- a/src/main/java/com/squareup/square/types/Booking.java
+++ b/src/main/java/com/squareup/square/types/Booking.java
@@ -750,5 +750,15 @@ public Booking build() {
                     address,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCreatedEvent.java b/src/main/java/com/squareup/square/types/BookingCreatedEvent.java
index eb48c09b..7e658a85 100644
--- a/src/main/java/com/squareup/square/types/BookingCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(BookingCreatedEventData data) {
         public BookingCreatedEvent build() {
             return new BookingCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCreatedEventData.java b/src/main/java/com/squareup/square/types/BookingCreatedEventData.java
index 0b5f8836..c33e5a89 100644
--- a/src/main/java/com/squareup/square/types/BookingCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/BookingCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(BookingCreatedEventObject object) {
         public BookingCreatedEventData build() {
             return new BookingCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCreatedEventObject.java b/src/main/java/com/squareup/square/types/BookingCreatedEventObject.java
index 3a1ed4e4..46dbac4c 100644
--- a/src/main/java/com/squareup/square/types/BookingCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/BookingCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder booking(Booking booking) {
         public BookingCreatedEventObject build() {
             return new BookingCreatedEventObject(booking, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCreatorDetails.java b/src/main/java/com/squareup/square/types/BookingCreatorDetails.java
index 5c52fdf5..3ae61c11 100644
--- a/src/main/java/com/squareup/square/types/BookingCreatorDetails.java
+++ b/src/main/java/com/squareup/square/types/BookingCreatorDetails.java
@@ -165,5 +165,15 @@ public Builder customerId(String customerId) {
         public BookingCreatorDetails build() {
             return new BookingCreatorDetails(creatorType, teamMemberId, customerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedCreatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedCreatedEvent.java
index da5d3cdc..4044c019 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedCreatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionOwnedCreatedEvent build() {
             return new BookingCustomAttributeDefinitionOwnedCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedDeletedEvent.java
index 939864e2..d111b193 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionOwnedDeletedEvent build() {
             return new BookingCustomAttributeDefinitionOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedUpdatedEvent.java
index 10af57b3..1a66ae07 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionOwnedUpdatedEvent build() {
             return new BookingCustomAttributeDefinitionOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleCreatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleCreatedEvent.java
index 6fc63f91..da450197 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleCreatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionVisibleCreatedEvent build() {
             return new BookingCustomAttributeDefinitionVisibleCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleDeletedEvent.java
index afd3b064..d562aaf1 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionVisibleDeletedEvent build() {
             return new BookingCustomAttributeDefinitionVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleUpdatedEvent.java
index b9326273..17c0a4f9 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDefinitionVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeDefinitionVisibleUpdatedEvent build() {
             return new BookingCustomAttributeDefinitionVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteRequest.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteRequest.java
index b63270c3..52d426da 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteRequest.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteRequest.java
@@ -100,6 +100,10 @@ public interface KeyStage {
 
     public interface _FinalStage {
         BookingCustomAttributeDeleteRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -152,5 +156,17 @@ public _FinalStage key(@NotNull String key) {
         public BookingCustomAttributeDeleteRequest build() {
             return new BookingCustomAttributeDeleteRequest(bookingId, key, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteResponse.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteResponse.java
index 44ca5fc5..de2f2b85 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteResponse.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeDeleteResponse.java
@@ -128,5 +128,15 @@ public Builder errors(List<Error> errors) {
         public BookingCustomAttributeDeleteResponse build() {
             return new BookingCustomAttributeDeleteResponse(bookingId, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedDeletedEvent.java
index dbe0aaa0..e4d1db99 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeOwnedDeletedEvent build() {
             return new BookingCustomAttributeOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedUpdatedEvent.java
index ef70f171..570b1e39 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeOwnedUpdatedEvent build() {
             return new BookingCustomAttributeOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertRequest.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertRequest.java
index 9e91d1ea..36800e63 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertRequest.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertRequest.java
@@ -158,6 +158,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         BookingCustomAttributeUpsertRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this individual upsert request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -288,5 +292,17 @@ public BookingCustomAttributeUpsertRequest build() {
             return new BookingCustomAttributeUpsertRequest(
                     bookingId, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertResponse.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertResponse.java
index a50cb9e8..a7035cad 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertResponse.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeUpsertResponse.java
@@ -161,5 +161,15 @@ public Builder errors(List<Error> errors) {
         public BookingCustomAttributeUpsertResponse build() {
             return new BookingCustomAttributeUpsertResponse(bookingId, customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleDeletedEvent.java
index dd4992e9..7a557a2e 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeVisibleDeletedEvent build() {
             return new BookingCustomAttributeVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleUpdatedEvent.java
index 0f26cdf7..9481ba81 100644
--- a/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingCustomAttributeVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public BookingCustomAttributeVisibleUpdatedEvent build() {
             return new BookingCustomAttributeVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingUpdatedEvent.java b/src/main/java/com/squareup/square/types/BookingUpdatedEvent.java
index c3a1b7d5..c7cdd1a6 100644
--- a/src/main/java/com/squareup/square/types/BookingUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/BookingUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(BookingUpdatedEventData data) {
         public BookingUpdatedEvent build() {
             return new BookingUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingUpdatedEventData.java b/src/main/java/com/squareup/square/types/BookingUpdatedEventData.java
index a4f21bba..b2999f42 100644
--- a/src/main/java/com/squareup/square/types/BookingUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/BookingUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(BookingUpdatedEventObject object) {
         public BookingUpdatedEventData build() {
             return new BookingUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BookingUpdatedEventObject.java b/src/main/java/com/squareup/square/types/BookingUpdatedEventObject.java
index d8e538e9..e12aad41 100644
--- a/src/main/java/com/squareup/square/types/BookingUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/BookingUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder booking(Booking booking) {
         public BookingUpdatedEventObject build() {
             return new BookingUpdatedEventObject(booking, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Break.java b/src/main/java/com/squareup/square/types/Break.java
index 08d5684a..a35069d6 100644
--- a/src/main/java/com/squareup/square/types/Break.java
+++ b/src/main/java/com/squareup/square/types/Break.java
@@ -209,6 +209,10 @@ public interface IsPaidStage {
     public interface _FinalStage {
         Break build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The UUID for this object.</p>
          */
@@ -392,5 +396,17 @@ public _FinalStage id(Optional<String> id) {
         public Break build() {
             return new Break(id, startAt, endAt, breakTypeId, name, expectedDuration, isPaid, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BreakType.java b/src/main/java/com/squareup/square/types/BreakType.java
index e2fc0939..a0c5a9f1 100644
--- a/src/main/java/com/squareup/square/types/BreakType.java
+++ b/src/main/java/com/squareup/square/types/BreakType.java
@@ -212,6 +212,10 @@ public interface IsPaidStage {
     public interface _FinalStage {
         BreakType build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The UUID for this object.</p>
          */
@@ -436,5 +440,17 @@ public BreakType build() {
                     updatedAt,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkCreateCustomerData.java b/src/main/java/com/squareup/square/types/BulkCreateCustomerData.java
index 3766b9e4..88d5f7bd 100644
--- a/src/main/java/com/squareup/square/types/BulkCreateCustomerData.java
+++ b/src/main/java/com/squareup/square/types/BulkCreateCustomerData.java
@@ -625,5 +625,15 @@ public BulkCreateCustomerData build() {
                     taxIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkCreateCustomersRequest.java b/src/main/java/com/squareup/square/types/BulkCreateCustomersRequest.java
index 3662ef66..c9b19b32 100644
--- a/src/main/java/com/squareup/square/types/BulkCreateCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkCreateCustomersRequest.java
@@ -116,5 +116,15 @@ public Builder customers(String key, BulkCreateCustomerData value) {
         public BulkCreateCustomersRequest build() {
             return new BulkCreateCustomersRequest(customers, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkCreateCustomersResponse.java b/src/main/java/com/squareup/square/types/BulkCreateCustomersResponse.java
index abbbe4e7..f2e3e0a5 100644
--- a/src/main/java/com/squareup/square/types/BulkCreateCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkCreateCustomersResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkCreateCustomersResponse build() {
             return new BulkCreateCustomersResponse(responses, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteBookingCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteBookingCustomAttributesResponse.java
index ba0572d7..b8208a9a 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteBookingCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteBookingCustomAttributesResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public BulkDeleteBookingCustomAttributesResponse build() {
             return new BulkDeleteBookingCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteCustomersRequest.java b/src/main/java/com/squareup/square/types/BulkDeleteCustomersRequest.java
index 94a6db7a..59c8c8b2 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteCustomersRequest.java
@@ -108,5 +108,15 @@ public Builder addAllCustomerIds(List<String> customerIds) {
         public BulkDeleteCustomersRequest build() {
             return new BulkDeleteCustomersRequest(customerIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteCustomersResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteCustomersResponse.java
index 047474d6..c2568e57 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteCustomersResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkDeleteCustomersResponse build() {
             return new BulkDeleteCustomersResponse(responses, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteRequest.java b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteRequest.java
index 18d4594f..f47c3bb6 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteRequest.java
@@ -102,5 +102,15 @@ public BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteReq
             return new BulkDeleteLocationCustomAttributesRequestLocationCustomAttributeDeleteRequest(
                     key, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponse.java
index c5dc0297..0cf5d88c 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponse.java
@@ -147,5 +147,15 @@ public Builder errors(List<Error> errors) {
         public BulkDeleteLocationCustomAttributesResponse build() {
             return new BulkDeleteLocationCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteResponse.java
index 2fb0de46..d56f3e2c 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteResponse.java
@@ -130,5 +130,15 @@ public BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteRe
             return new BulkDeleteLocationCustomAttributesResponseLocationCustomAttributeDeleteResponse(
                     locationId, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteRequest.java b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteRequest.java
index faea7b3f..c6169044 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteRequest.java
@@ -102,5 +102,15 @@ public BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteReq
             return new BulkDeleteMerchantCustomAttributesRequestMerchantCustomAttributeDeleteRequest(
                     key, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponse.java
index 0bf80b50..e19ae66b 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponse.java
@@ -147,5 +147,15 @@ public Builder errors(List<Error> errors) {
         public BulkDeleteMerchantCustomAttributesResponse build() {
             return new BulkDeleteMerchantCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteResponse.java
index 771da3a8..4c9b745a 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteResponse.java
@@ -102,5 +102,15 @@ public BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteRe
             return new BulkDeleteMerchantCustomAttributesResponseMerchantCustomAttributeDeleteResponse(
                     errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute.java b/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute.java
index 5876a893..24d77c5a 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute.java
@@ -93,6 +93,10 @@ public interface OrderIdStage {
     public interface _FinalStage {
         BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The key of the custom attribute to delete.  This key must match the key
          * of an existing custom attribute definition.</p>
@@ -158,5 +162,17 @@ public _FinalStage key(Optional<String> key) {
         public BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute build() {
             return new BulkDeleteOrderCustomAttributesRequestDeleteCustomAttribute(key, orderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesResponse.java
index 216aa37a..1107aa0d 100644
--- a/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkDeleteOrderCustomAttributesResponse.java
@@ -143,5 +143,15 @@ public Builder values(String key, DeleteOrderCustomAttributeResponse value) {
         public BulkDeleteOrderCustomAttributesResponse build() {
             return new BulkDeleteOrderCustomAttributesResponse(errors, values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsData.java b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsData.java
index f64962d0..af506684 100644
--- a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsData.java
+++ b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsData.java
@@ -101,5 +101,15 @@ public Builder version(Integer version) {
         public BulkPublishScheduledShiftsData build() {
             return new BulkPublishScheduledShiftsData(version, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsRequest.java b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsRequest.java
index 4e6f26da..2db58b29 100644
--- a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsRequest.java
@@ -159,5 +159,15 @@ public BulkPublishScheduledShiftsRequest build() {
             return new BulkPublishScheduledShiftsRequest(
                     scheduledShifts, scheduledShiftNotificationAudience, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsResponse.java b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsResponse.java
index 7ce643d2..77bf1b83 100644
--- a/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkPublishScheduledShiftsResponse.java
@@ -144,5 +144,15 @@ public Builder errors(List<Error> errors) {
         public BulkPublishScheduledShiftsResponse build() {
             return new BulkPublishScheduledShiftsResponse(responses, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveBookingsRequest.java b/src/main/java/com/squareup/square/types/BulkRetrieveBookingsRequest.java
index 36a52782..e367d00e 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveBookingsRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveBookingsRequest.java
@@ -108,5 +108,15 @@ public Builder addAllBookingIds(List<String> bookingIds) {
         public BulkRetrieveBookingsRequest build() {
             return new BulkRetrieveBookingsRequest(bookingIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveBookingsResponse.java b/src/main/java/com/squareup/square/types/BulkRetrieveBookingsResponse.java
index 186e5859..c396eb5c 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveBookingsResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveBookingsResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public BulkRetrieveBookingsResponse build() {
             return new BulkRetrieveBookingsResponse(bookings, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveChannelsRequest.java b/src/main/java/com/squareup/square/types/BulkRetrieveChannelsRequest.java
index c2fe07e4..cba0e8c5 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveChannelsRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveChannelsRequest.java
@@ -102,5 +102,15 @@ public Builder addAllChannelIds(List<String> channelIds) {
         public BulkRetrieveChannelsRequest build() {
             return new BulkRetrieveChannelsRequest(channelIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveChannelsResponse.java b/src/main/java/com/squareup/square/types/BulkRetrieveChannelsResponse.java
index ccad1b53..92afc06b 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveChannelsResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveChannelsResponse.java
@@ -135,5 +135,15 @@ public Builder responses(Map<String, RetrieveChannelResponse> responses) {
         public BulkRetrieveChannelsResponse build() {
             return new BulkRetrieveChannelsResponse(errors, responses, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveCustomersRequest.java b/src/main/java/com/squareup/square/types/BulkRetrieveCustomersRequest.java
index d09d15dd..3d094093 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveCustomersRequest.java
@@ -108,5 +108,15 @@ public Builder addAllCustomerIds(List<String> customerIds) {
         public BulkRetrieveCustomersRequest build() {
             return new BulkRetrieveCustomersRequest(customerIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveCustomersResponse.java b/src/main/java/com/squareup/square/types/BulkRetrieveCustomersResponse.java
index e22dbdc0..a803b470 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveCustomersResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkRetrieveCustomersResponse build() {
             return new BulkRetrieveCustomersResponse(responses, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesRequest.java b/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesRequest.java
index 599ebeb7..94765425 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesRequest.java
@@ -110,5 +110,15 @@ public Builder addAllTeamMemberIds(List<String> teamMemberIds) {
         public BulkRetrieveTeamMemberBookingProfilesRequest build() {
             return new BulkRetrieveTeamMemberBookingProfilesRequest(teamMemberIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesResponse.java b/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesResponse.java
index ce8df77c..0356abd0 100644
--- a/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkRetrieveTeamMemberBookingProfilesResponse.java
@@ -133,5 +133,15 @@ public BulkRetrieveTeamMemberBookingProfilesResponse build() {
             return new BulkRetrieveTeamMemberBookingProfilesResponse(
                     teamMemberBookingProfiles, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkSwapPlanRequest.java b/src/main/java/com/squareup/square/types/BulkSwapPlanRequest.java
index 7d678733..172b3fc5 100644
--- a/src/main/java/com/squareup/square/types/BulkSwapPlanRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkSwapPlanRequest.java
@@ -124,6 +124,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         BulkSwapPlanRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -194,5 +198,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public BulkSwapPlanRequest build() {
             return new BulkSwapPlanRequest(newPlanVariationId, oldPlanVariationId, locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkSwapPlanResponse.java b/src/main/java/com/squareup/square/types/BulkSwapPlanResponse.java
index 78fefff8..ce434abd 100644
--- a/src/main/java/com/squareup/square/types/BulkSwapPlanResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkSwapPlanResponse.java
@@ -129,5 +129,15 @@ public Builder affectedSubscriptions(Integer affectedSubscriptions) {
         public BulkSwapPlanResponse build() {
             return new BulkSwapPlanResponse(errors, affectedSubscriptions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpdateCustomerData.java b/src/main/java/com/squareup/square/types/BulkUpdateCustomerData.java
index b1f6f595..7a97a77c 100644
--- a/src/main/java/com/squareup/square/types/BulkUpdateCustomerData.java
+++ b/src/main/java/com/squareup/square/types/BulkUpdateCustomerData.java
@@ -663,5 +663,15 @@ public BulkUpdateCustomerData build() {
                     version,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpdateCustomersRequest.java b/src/main/java/com/squareup/square/types/BulkUpdateCustomersRequest.java
index 1d20a960..e989273d 100644
--- a/src/main/java/com/squareup/square/types/BulkUpdateCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkUpdateCustomersRequest.java
@@ -118,5 +118,15 @@ public Builder customers(String key, BulkUpdateCustomerData value) {
         public BulkUpdateCustomersRequest build() {
             return new BulkUpdateCustomersRequest(customers, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpdateCustomersResponse.java b/src/main/java/com/squareup/square/types/BulkUpdateCustomersResponse.java
index b275db4b..0d6dc9a0 100644
--- a/src/main/java/com/squareup/square/types/BulkUpdateCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpdateCustomersResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkUpdateCustomersResponse build() {
             return new BulkUpdateCustomersResponse(responses, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertBookingCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertBookingCustomAttributesResponse.java
index 9ccc89ac..ff835238 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertBookingCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertBookingCustomAttributesResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public BulkUpsertBookingCustomAttributesResponse build() {
             return new BulkUpsertBookingCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest.java b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest.java
index 49a03242..d7c50830 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest.java
@@ -146,6 +146,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this individual upsert request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -264,5 +268,17 @@ public BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertReq
             return new BulkUpsertLocationCustomAttributesRequestLocationCustomAttributeUpsertRequest(
                     locationId, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponse.java
index 89c299f0..e5168873 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkUpsertLocationCustomAttributesResponse build() {
             return new BulkUpsertLocationCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertResponse.java
index f6ba8e4e..442ca6ff 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertResponse.java
@@ -163,5 +163,15 @@ public BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertRe
             return new BulkUpsertLocationCustomAttributesResponseLocationCustomAttributeUpsertResponse(
                     locationId, customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest.java b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest.java
index e69625e6..995327b3 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest.java
@@ -146,6 +146,10 @@ public interface CustomAttributeStage {
     public interface _FinalStage {
         BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this individual upsert request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -264,5 +268,17 @@ public BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertReq
             return new BulkUpsertMerchantCustomAttributesRequestMerchantCustomAttributeUpsertRequest(
                     merchantId, customAttribute, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponse.java
index 6f9e49b2..e5d7363d 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponse.java
@@ -139,5 +139,15 @@ public Builder errors(List<Error> errors) {
         public BulkUpsertMerchantCustomAttributesResponse build() {
             return new BulkUpsertMerchantCustomAttributesResponse(values, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertResponse.java
index bf64d03a..1c5a1062 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertResponse.java
@@ -163,5 +163,15 @@ public BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertRe
             return new BulkUpsertMerchantCustomAttributesResponseMerchantCustomAttributeUpsertResponse(
                     merchantId, customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute.java b/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute.java
index 828cd206..afd293b2 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute.java
@@ -148,6 +148,10 @@ public interface OrderIdStage {
     public interface _FinalStage {
         BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for this request, used to ensure idempotency.
          * For more information, see <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">Idempotency</a>.</p>
@@ -268,5 +272,17 @@ public BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute build() {
             return new BulkUpsertOrderCustomAttributesRequestUpsertCustomAttribute(
                     customAttribute, idempotencyKey, orderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesResponse.java
index 117b3b68..c3ed5c87 100644
--- a/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/BulkUpsertOrderCustomAttributesResponse.java
@@ -141,5 +141,15 @@ public Builder values(String key, UpsertOrderCustomAttributeResponse value) {
         public BulkUpsertOrderCustomAttributesResponse build() {
             return new BulkUpsertOrderCustomAttributesResponse(errors, values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BusinessAppointmentSettings.java b/src/main/java/com/squareup/square/types/BusinessAppointmentSettings.java
index ec34cfcc..d37a9a5b 100644
--- a/src/main/java/com/squareup/square/types/BusinessAppointmentSettings.java
+++ b/src/main/java/com/squareup/square/types/BusinessAppointmentSettings.java
@@ -685,5 +685,15 @@ public BusinessAppointmentSettings build() {
                     skipBookingFlowStaffSelection,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BusinessBookingProfile.java b/src/main/java/com/squareup/square/types/BusinessBookingProfile.java
index d17c1c5b..d541cb8f 100644
--- a/src/main/java/com/squareup/square/types/BusinessBookingProfile.java
+++ b/src/main/java/com/squareup/square/types/BusinessBookingProfile.java
@@ -418,5 +418,15 @@ public BusinessBookingProfile build() {
                     supportSellerLevelWrites,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BusinessHours.java b/src/main/java/com/squareup/square/types/BusinessHours.java
index 9b3c84f2..792dc396 100644
--- a/src/main/java/com/squareup/square/types/BusinessHours.java
+++ b/src/main/java/com/squareup/square/types/BusinessHours.java
@@ -121,5 +121,15 @@ public Builder periods(Nullable<List<BusinessHoursPeriod>> periods) {
         public BusinessHours build() {
             return new BusinessHours(periods, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BusinessHoursPeriod.java b/src/main/java/com/squareup/square/types/BusinessHoursPeriod.java
index da83ac43..0f036512 100644
--- a/src/main/java/com/squareup/square/types/BusinessHoursPeriod.java
+++ b/src/main/java/com/squareup/square/types/BusinessHoursPeriod.java
@@ -212,5 +212,15 @@ public Builder endLocalTime(Nullable<String> endLocalTime) {
         public BusinessHoursPeriod build() {
             return new BusinessHoursPeriod(dayOfWeek, startLocalTime, endLocalTime, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/BuyNowPayLaterDetails.java b/src/main/java/com/squareup/square/types/BuyNowPayLaterDetails.java
index c6af0fbf..a8f39d17 100644
--- a/src/main/java/com/squareup/square/types/BuyNowPayLaterDetails.java
+++ b/src/main/java/com/squareup/square/types/BuyNowPayLaterDetails.java
@@ -219,5 +219,15 @@ public Builder errors(List<Error> errors) {
         public BuyNowPayLaterDetails build() {
             return new BuyNowPayLaterDetails(brand, afterpayDetails, clearpayDetails, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CalculateLoyaltyPointsResponse.java b/src/main/java/com/squareup/square/types/CalculateLoyaltyPointsResponse.java
index f88a75c4..b315a8a2 100644
--- a/src/main/java/com/squareup/square/types/CalculateLoyaltyPointsResponse.java
+++ b/src/main/java/com/squareup/square/types/CalculateLoyaltyPointsResponse.java
@@ -164,5 +164,15 @@ public Builder promotionPoints(Integer promotionPoints) {
         public CalculateLoyaltyPointsResponse build() {
             return new CalculateLoyaltyPointsResponse(errors, points, promotionPoints, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CalculateOrderRequest.java b/src/main/java/com/squareup/square/types/CalculateOrderRequest.java
index 2ea2ed10..d49cc7e4 100644
--- a/src/main/java/com/squareup/square/types/CalculateOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/CalculateOrderRequest.java
@@ -108,6 +108,10 @@ public interface OrderStage {
     public interface _FinalStage {
         CalculateOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Identifies one or more loyalty reward tiers to apply during the order calculation.
          * The discounts defined by the reward tiers are added to the order only to preview the
@@ -204,5 +208,17 @@ public _FinalStage proposedRewards(Optional<List<OrderReward>> proposedRewards)
         public CalculateOrderRequest build() {
             return new CalculateOrderRequest(order, proposedRewards, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CalculateOrderResponse.java b/src/main/java/com/squareup/square/types/CalculateOrderResponse.java
index d9a93d4d..a1e0e3c6 100644
--- a/src/main/java/com/squareup/square/types/CalculateOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/CalculateOrderResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CalculateOrderResponse build() {
             return new CalculateOrderResponse(order, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelBookingRequest.java b/src/main/java/com/squareup/square/types/CancelBookingRequest.java
index 38d3b03b..db7e8af0 100644
--- a/src/main/java/com/squareup/square/types/CancelBookingRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelBookingRequest.java
@@ -128,6 +128,10 @@ public interface BookingIdStage {
     public interface _FinalStage {
         CancelBookingRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique key to make this request an idempotent operation.</p>
          */
@@ -256,5 +260,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CancelBookingRequest build() {
             return new CancelBookingRequest(bookingId, idempotencyKey, bookingVersion, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelBookingResponse.java b/src/main/java/com/squareup/square/types/CancelBookingResponse.java
index a62f0dad..025abd3b 100644
--- a/src/main/java/com/squareup/square/types/CancelBookingResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelBookingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CancelBookingResponse build() {
             return new CancelBookingResponse(booking, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelInvoiceRequest.java b/src/main/java/com/squareup/square/types/CancelInvoiceRequest.java
index 6604dd60..f94a2029 100644
--- a/src/main/java/com/squareup/square/types/CancelInvoiceRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelInvoiceRequest.java
@@ -98,6 +98,10 @@ public interface VersionStage {
 
     public interface _FinalStage {
         CancelInvoiceRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage version(int version) {
         public CancelInvoiceRequest build() {
             return new CancelInvoiceRequest(invoiceId, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelInvoiceResponse.java b/src/main/java/com/squareup/square/types/CancelInvoiceResponse.java
index bb7691ae..583413e2 100644
--- a/src/main/java/com/squareup/square/types/CancelInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelInvoiceResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CancelInvoiceResponse build() {
             return new CancelInvoiceResponse(invoice, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelLoyaltyPromotionResponse.java b/src/main/java/com/squareup/square/types/CancelLoyaltyPromotionResponse.java
index 7d705ce1..56fdc456 100644
--- a/src/main/java/com/squareup/square/types/CancelLoyaltyPromotionResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelLoyaltyPromotionResponse.java
@@ -129,5 +129,15 @@ public Builder loyaltyPromotion(LoyaltyPromotion loyaltyPromotion) {
         public CancelLoyaltyPromotionResponse build() {
             return new CancelLoyaltyPromotionResponse(errors, loyaltyPromotion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyRequest.java b/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyRequest.java
index 6ae9f54e..31027e6e 100644
--- a/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyRequest.java
@@ -77,6 +77,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         CancelPaymentByIdempotencyKeyRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public CancelPaymentByIdempotencyKeyRequest build() {
             return new CancelPaymentByIdempotencyKeyRequest(idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyResponse.java b/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyResponse.java
index 903612a5..e71c258c 100644
--- a/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelPaymentByIdempotencyKeyResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public CancelPaymentByIdempotencyKeyResponse build() {
             return new CancelPaymentByIdempotencyKeyResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelPaymentResponse.java b/src/main/java/com/squareup/square/types/CancelPaymentResponse.java
index d0ce9222..36143d8e 100644
--- a/src/main/java/com/squareup/square/types/CancelPaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelPaymentResponse.java
@@ -127,5 +127,15 @@ public Builder payment(Payment payment) {
         public CancelPaymentResponse build() {
             return new CancelPaymentResponse(errors, payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelPaymentsRequest.java b/src/main/java/com/squareup/square/types/CancelPaymentsRequest.java
index 3e9f8251..349b7df7 100644
--- a/src/main/java/com/squareup/square/types/CancelPaymentsRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelPaymentsRequest.java
@@ -76,6 +76,10 @@ public interface PaymentIdStage {
 
     public interface _FinalStage {
         CancelPaymentsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage paymentId(@NotNull String paymentId) {
         public CancelPaymentsRequest build() {
             return new CancelPaymentsRequest(paymentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelSubscriptionResponse.java b/src/main/java/com/squareup/square/types/CancelSubscriptionResponse.java
index 97ead298..a8ef79d7 100644
--- a/src/main/java/com/squareup/square/types/CancelSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelSubscriptionResponse.java
@@ -158,5 +158,15 @@ public Builder actions(List<SubscriptionAction> actions) {
         public CancelSubscriptionResponse build() {
             return new CancelSubscriptionResponse(errors, subscription, actions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelSubscriptionsRequest.java b/src/main/java/com/squareup/square/types/CancelSubscriptionsRequest.java
index 3e85d48b..a70823e2 100644
--- a/src/main/java/com/squareup/square/types/CancelSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelSubscriptionsRequest.java
@@ -76,6 +76,10 @@ public interface SubscriptionIdStage {
 
     public interface _FinalStage {
         CancelSubscriptionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage subscriptionId(@NotNull String subscriptionId) {
         public CancelSubscriptionsRequest build() {
             return new CancelSubscriptionsRequest(subscriptionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelTerminalActionResponse.java b/src/main/java/com/squareup/square/types/CancelTerminalActionResponse.java
index a86fb98d..a607a5a9 100644
--- a/src/main/java/com/squareup/square/types/CancelTerminalActionResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelTerminalActionResponse.java
@@ -127,5 +127,15 @@ public Builder action(TerminalAction action) {
         public CancelTerminalActionResponse build() {
             return new CancelTerminalActionResponse(errors, action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelTerminalCheckoutResponse.java b/src/main/java/com/squareup/square/types/CancelTerminalCheckoutResponse.java
index e9f76caf..1ac5cd1a 100644
--- a/src/main/java/com/squareup/square/types/CancelTerminalCheckoutResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelTerminalCheckoutResponse.java
@@ -129,5 +129,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public CancelTerminalCheckoutResponse build() {
             return new CancelTerminalCheckoutResponse(errors, checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelTerminalRefundResponse.java b/src/main/java/com/squareup/square/types/CancelTerminalRefundResponse.java
index f265f273..59e1ca76 100644
--- a/src/main/java/com/squareup/square/types/CancelTerminalRefundResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelTerminalRefundResponse.java
@@ -127,5 +127,15 @@ public Builder refund(TerminalRefund refund) {
         public CancelTerminalRefundResponse build() {
             return new CancelTerminalRefundResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelTransferOrderRequest.java b/src/main/java/com/squareup/square/types/CancelTransferOrderRequest.java
index e1e74bc8..4cd2d8f7 100644
--- a/src/main/java/com/squareup/square/types/CancelTransferOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/CancelTransferOrderRequest.java
@@ -116,6 +116,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         CancelTransferOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Version for optimistic concurrency</p>
          */
@@ -195,5 +199,17 @@ public _FinalStage version(Optional<Long> version) {
         public CancelTransferOrderRequest build() {
             return new CancelTransferOrderRequest(transferOrderId, idempotencyKey, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CancelTransferOrderResponse.java b/src/main/java/com/squareup/square/types/CancelTransferOrderResponse.java
index cc89e572..daebd644 100644
--- a/src/main/java/com/squareup/square/types/CancelTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/CancelTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public CancelTransferOrderResponse build() {
             return new CancelTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CaptureTransactionResponse.java b/src/main/java/com/squareup/square/types/CaptureTransactionResponse.java
index 1500b078..3f826967 100644
--- a/src/main/java/com/squareup/square/types/CaptureTransactionResponse.java
+++ b/src/main/java/com/squareup/square/types/CaptureTransactionResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public CaptureTransactionResponse build() {
             return new CaptureTransactionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Card.java b/src/main/java/com/squareup/square/types/Card.java
index fd5e10fc..681093cc 100644
--- a/src/main/java/com/squareup/square/types/Card.java
+++ b/src/main/java/com/squareup/square/types/Card.java
@@ -921,5 +921,15 @@ public Card build() {
                     hsaFsa,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEvent.java b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEvent.java
index 4282adcf..f4b50e3f 100644
--- a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CardAutomaticallyUpdatedEventData data) {
         public CardAutomaticallyUpdatedEvent build() {
             return new CardAutomaticallyUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventData.java b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventData.java
index 91c90be5..771cd7f6 100644
--- a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CardAutomaticallyUpdatedEventObject object) {
         public CardAutomaticallyUpdatedEventData build() {
             return new CardAutomaticallyUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventObject.java b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventObject.java
index 0d0ea60a..55dfd524 100644
--- a/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CardAutomaticallyUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder card(Card card) {
         public CardAutomaticallyUpdatedEventObject build() {
             return new CardAutomaticallyUpdatedEventObject(card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardCreatedEvent.java b/src/main/java/com/squareup/square/types/CardCreatedEvent.java
index fb1fd8ab..95787289 100644
--- a/src/main/java/com/squareup/square/types/CardCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CardCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CardCreatedEventData data) {
         public CardCreatedEvent build() {
             return new CardCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardCreatedEventData.java b/src/main/java/com/squareup/square/types/CardCreatedEventData.java
index 2023ed68..c3b77b93 100644
--- a/src/main/java/com/squareup/square/types/CardCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CardCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CardCreatedEventObject object) {
         public CardCreatedEventData build() {
             return new CardCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardCreatedEventObject.java b/src/main/java/com/squareup/square/types/CardCreatedEventObject.java
index 94b4d0e4..924d4855 100644
--- a/src/main/java/com/squareup/square/types/CardCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CardCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder card(Card card) {
         public CardCreatedEventObject build() {
             return new CardCreatedEventObject(card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardDisabledEvent.java b/src/main/java/com/squareup/square/types/CardDisabledEvent.java
index 13b3159f..e485abca 100644
--- a/src/main/java/com/squareup/square/types/CardDisabledEvent.java
+++ b/src/main/java/com/squareup/square/types/CardDisabledEvent.java
@@ -282,5 +282,15 @@ public Builder data(CardDisabledEventData data) {
         public CardDisabledEvent build() {
             return new CardDisabledEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardDisabledEventData.java b/src/main/java/com/squareup/square/types/CardDisabledEventData.java
index de99c0a1..8715804b 100644
--- a/src/main/java/com/squareup/square/types/CardDisabledEventData.java
+++ b/src/main/java/com/squareup/square/types/CardDisabledEventData.java
@@ -180,5 +180,15 @@ public Builder object(CardDisabledEventObject object) {
         public CardDisabledEventData build() {
             return new CardDisabledEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardDisabledEventObject.java b/src/main/java/com/squareup/square/types/CardDisabledEventObject.java
index 5c3f034b..b93089b6 100644
--- a/src/main/java/com/squareup/square/types/CardDisabledEventObject.java
+++ b/src/main/java/com/squareup/square/types/CardDisabledEventObject.java
@@ -97,5 +97,15 @@ public Builder card(Card card) {
         public CardDisabledEventObject build() {
             return new CardDisabledEventObject(card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardForgottenEvent.java b/src/main/java/com/squareup/square/types/CardForgottenEvent.java
index ad17f045..e3fddd25 100644
--- a/src/main/java/com/squareup/square/types/CardForgottenEvent.java
+++ b/src/main/java/com/squareup/square/types/CardForgottenEvent.java
@@ -282,5 +282,15 @@ public Builder data(CardForgottenEventData data) {
         public CardForgottenEvent build() {
             return new CardForgottenEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardForgottenEventCard.java b/src/main/java/com/squareup/square/types/CardForgottenEventCard.java
index ca0b3f3b..295db935 100644
--- a/src/main/java/com/squareup/square/types/CardForgottenEventCard.java
+++ b/src/main/java/com/squareup/square/types/CardForgottenEventCard.java
@@ -341,5 +341,15 @@ public CardForgottenEventCard build() {
             return new CardForgottenEventCard(
                     id, customerId, enabled, referenceId, version, merchantId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardForgottenEventData.java b/src/main/java/com/squareup/square/types/CardForgottenEventData.java
index 484105dd..f88163ff 100644
--- a/src/main/java/com/squareup/square/types/CardForgottenEventData.java
+++ b/src/main/java/com/squareup/square/types/CardForgottenEventData.java
@@ -180,5 +180,15 @@ public Builder object(CardForgottenEventObject object) {
         public CardForgottenEventData build() {
             return new CardForgottenEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardForgottenEventObject.java b/src/main/java/com/squareup/square/types/CardForgottenEventObject.java
index be66463a..3e1dbb20 100644
--- a/src/main/java/com/squareup/square/types/CardForgottenEventObject.java
+++ b/src/main/java/com/squareup/square/types/CardForgottenEventObject.java
@@ -97,5 +97,15 @@ public Builder card(CardForgottenEventCard card) {
         public CardForgottenEventObject build() {
             return new CardForgottenEventObject(card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardPaymentDetails.java b/src/main/java/com/squareup/square/types/CardPaymentDetails.java
index 83862888..045181b7 100644
--- a/src/main/java/com/squareup/square/types/CardPaymentDetails.java
+++ b/src/main/java/com/squareup/square/types/CardPaymentDetails.java
@@ -605,5 +605,15 @@ public CardPaymentDetails build() {
                     errors,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardPaymentTimeline.java b/src/main/java/com/squareup/square/types/CardPaymentTimeline.java
index 42ed2f55..4e11af4f 100644
--- a/src/main/java/com/squareup/square/types/CardPaymentTimeline.java
+++ b/src/main/java/com/squareup/square/types/CardPaymentTimeline.java
@@ -222,5 +222,15 @@ public Builder voidedAt(Nullable<String> voidedAt) {
         public CardPaymentTimeline build() {
             return new CardPaymentTimeline(authorizedAt, capturedAt, voidedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardUpdatedEvent.java b/src/main/java/com/squareup/square/types/CardUpdatedEvent.java
index bd9cf69f..e61c3350 100644
--- a/src/main/java/com/squareup/square/types/CardUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CardUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CardUpdatedEventData data) {
         public CardUpdatedEvent build() {
             return new CardUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardUpdatedEventData.java b/src/main/java/com/squareup/square/types/CardUpdatedEventData.java
index db0b75ca..d26658b5 100644
--- a/src/main/java/com/squareup/square/types/CardUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CardUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CardUpdatedEventObject object) {
         public CardUpdatedEventData build() {
             return new CardUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CardUpdatedEventObject.java b/src/main/java/com/squareup/square/types/CardUpdatedEventObject.java
index db50d85e..339bf942 100644
--- a/src/main/java/com/squareup/square/types/CardUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CardUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder card(Card card) {
         public CardUpdatedEventObject build() {
             return new CardUpdatedEventObject(card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashAppDetails.java b/src/main/java/com/squareup/square/types/CashAppDetails.java
index 2d5080e6..f143608f 100644
--- a/src/main/java/com/squareup/square/types/CashAppDetails.java
+++ b/src/main/java/com/squareup/square/types/CashAppDetails.java
@@ -204,5 +204,15 @@ public Builder buyerCashtag(String buyerCashtag) {
         public CashAppDetails build() {
             return new CashAppDetails(buyerFullName, buyerCountryCode, buyerCashtag, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashDrawerDevice.java b/src/main/java/com/squareup/square/types/CashDrawerDevice.java
index 345a190d..2f535074 100644
--- a/src/main/java/com/squareup/square/types/CashDrawerDevice.java
+++ b/src/main/java/com/squareup/square/types/CashDrawerDevice.java
@@ -148,5 +148,15 @@ public Builder name(Nullable<String> name) {
         public CashDrawerDevice build() {
             return new CashDrawerDevice(id, name, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashDrawerShift.java b/src/main/java/com/squareup/square/types/CashDrawerShift.java
index b1c308a4..0773230c 100644
--- a/src/main/java/com/squareup/square/types/CashDrawerShift.java
+++ b/src/main/java/com/squareup/square/types/CashDrawerShift.java
@@ -866,5 +866,15 @@ public CashDrawerShift build() {
                     closingTeamMemberId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashDrawerShiftEvent.java b/src/main/java/com/squareup/square/types/CashDrawerShiftEvent.java
index 25d82fc2..f7a73ff7 100644
--- a/src/main/java/com/squareup/square/types/CashDrawerShiftEvent.java
+++ b/src/main/java/com/squareup/square/types/CashDrawerShiftEvent.java
@@ -284,5 +284,15 @@ public CashDrawerShiftEvent build() {
             return new CashDrawerShiftEvent(
                     id, eventType, eventMoney, createdAt, description, teamMemberId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashDrawerShiftSummary.java b/src/main/java/com/squareup/square/types/CashDrawerShiftSummary.java
index 50681f70..3aa04688 100644
--- a/src/main/java/com/squareup/square/types/CashDrawerShiftSummary.java
+++ b/src/main/java/com/squareup/square/types/CashDrawerShiftSummary.java
@@ -551,5 +551,15 @@ public CashDrawerShiftSummary build() {
                     locationId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CashPaymentDetails.java b/src/main/java/com/squareup/square/types/CashPaymentDetails.java
index 9526eac1..057f5ba4 100644
--- a/src/main/java/com/squareup/square/types/CashPaymentDetails.java
+++ b/src/main/java/com/squareup/square/types/CashPaymentDetails.java
@@ -93,6 +93,10 @@ public interface BuyerSuppliedMoneyStage {
     public interface _FinalStage {
         CashPaymentDetails build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The amount of change due back to the buyer.
          * This read-only field is calculated
@@ -161,5 +165,17 @@ public _FinalStage changeBackMoney(Optional<Money> changeBackMoney) {
         public CashPaymentDetails build() {
             return new CashPaymentDetails(buyerSuppliedMoney, changeBackMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogAvailabilityPeriod.java b/src/main/java/com/squareup/square/types/CatalogAvailabilityPeriod.java
index e7653cd5..825de9ca 100644
--- a/src/main/java/com/squareup/square/types/CatalogAvailabilityPeriod.java
+++ b/src/main/java/com/squareup/square/types/CatalogAvailabilityPeriod.java
@@ -212,5 +212,15 @@ public Builder dayOfWeek(DayOfWeek dayOfWeek) {
         public CatalogAvailabilityPeriod build() {
             return new CatalogAvailabilityPeriod(startLocalTime, endLocalTime, dayOfWeek, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCategory.java b/src/main/java/com/squareup/square/types/CatalogCategory.java
index db134d89..b1c7c309 100644
--- a/src/main/java/com/squareup/square/types/CatalogCategory.java
+++ b/src/main/java/com/squareup/square/types/CatalogCategory.java
@@ -572,5 +572,15 @@ public CatalogCategory build() {
                     pathToRoot,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinition.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinition.java
index a6f1f2b1..9b6cc699 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinition.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinition.java
@@ -288,6 +288,10 @@ public interface NameStage {
     public interface _FinalStage {
         CatalogCustomAttributeDefinition build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Seller-oriented description of the meaning of this Custom Attribute,
          * any constraints that the seller should observe, etc. May be displayed as a tooltip in Square UIs.</p>
@@ -758,5 +762,17 @@ public CatalogCustomAttributeDefinition build() {
                     key,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionNumberConfig.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionNumberConfig.java
index 314a1361..41b1ace5 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionNumberConfig.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionNumberConfig.java
@@ -138,5 +138,15 @@ public Builder precision(Nullable<Integer> precision) {
         public CatalogCustomAttributeDefinitionNumberConfig build() {
             return new CatalogCustomAttributeDefinitionNumberConfig(precision, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfig.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfig.java
index dbef4734..3a18d777 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfig.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfig.java
@@ -192,5 +192,15 @@ public CatalogCustomAttributeDefinitionSelectionConfig build() {
             return new CatalogCustomAttributeDefinitionSelectionConfig(
                     maxAllowedSelections, allowedSelections, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection.java
index 0fecb7d2..ba04074f 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection.java
@@ -104,6 +104,10 @@ public interface NameStage {
     public interface _FinalStage {
         CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Unique ID set by Square.</p>
          */
@@ -185,5 +189,17 @@ public CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection b
             return new CatalogCustomAttributeDefinitionSelectionConfigCustomAttributeSelection(
                     uid, name, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionStringConfig.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionStringConfig.java
index d4888a5a..34fe3ddc 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionStringConfig.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeDefinitionStringConfig.java
@@ -130,5 +130,15 @@ public Builder enforceUniqueness(Nullable<Boolean> enforceUniqueness) {
         public CatalogCustomAttributeDefinitionStringConfig build() {
             return new CatalogCustomAttributeDefinitionStringConfig(enforceUniqueness, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogCustomAttributeValue.java b/src/main/java/com/squareup/square/types/CatalogCustomAttributeValue.java
index 9e5e2d77..f81fea22 100644
--- a/src/main/java/com/squareup/square/types/CatalogCustomAttributeValue.java
+++ b/src/main/java/com/squareup/square/types/CatalogCustomAttributeValue.java
@@ -438,5 +438,15 @@ public CatalogCustomAttributeValue build() {
                     key,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogDiscount.java b/src/main/java/com/squareup/square/types/CatalogDiscount.java
index abf12a86..9560b621 100644
--- a/src/main/java/com/squareup/square/types/CatalogDiscount.java
+++ b/src/main/java/com/squareup/square/types/CatalogDiscount.java
@@ -441,5 +441,15 @@ public CatalogDiscount build() {
                     maximumAmountMoney,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogEcomSeoData.java b/src/main/java/com/squareup/square/types/CatalogEcomSeoData.java
index eace883c..20b7b94f 100644
--- a/src/main/java/com/squareup/square/types/CatalogEcomSeoData.java
+++ b/src/main/java/com/squareup/square/types/CatalogEcomSeoData.java
@@ -222,5 +222,15 @@ public Builder permalink(Nullable<String> permalink) {
         public CatalogEcomSeoData build() {
             return new CatalogEcomSeoData(pageTitle, pageDescription, permalink, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogIdMapping.java b/src/main/java/com/squareup/square/types/CatalogIdMapping.java
index a573e7fb..0ddb30bf 100644
--- a/src/main/java/com/squareup/square/types/CatalogIdMapping.java
+++ b/src/main/java/com/squareup/square/types/CatalogIdMapping.java
@@ -169,5 +169,15 @@ public Builder objectId(Nullable<String> objectId) {
         public CatalogIdMapping build() {
             return new CatalogIdMapping(clientObjectId, objectId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogImage.java b/src/main/java/com/squareup/square/types/CatalogImage.java
index 6cd2da72..68542c42 100644
--- a/src/main/java/com/squareup/square/types/CatalogImage.java
+++ b/src/main/java/com/squareup/square/types/CatalogImage.java
@@ -286,5 +286,15 @@ public Builder photoStudioOrderId(Nullable<String> photoStudioOrderId) {
         public CatalogImage build() {
             return new CatalogImage(name, url, caption, photoStudioOrderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogInfoResponse.java b/src/main/java/com/squareup/square/types/CatalogInfoResponse.java
index 87638b86..5ec26134 100644
--- a/src/main/java/com/squareup/square/types/CatalogInfoResponse.java
+++ b/src/main/java/com/squareup/square/types/CatalogInfoResponse.java
@@ -161,5 +161,15 @@ public Builder standardUnitDescriptionGroup(StandardUnitDescriptionGroup standar
         public CatalogInfoResponse build() {
             return new CatalogInfoResponse(errors, limits, standardUnitDescriptionGroup, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogInfoResponseLimits.java b/src/main/java/com/squareup/square/types/CatalogInfoResponseLimits.java
index 1981be7a..6c255f90 100644
--- a/src/main/java/com/squareup/square/types/CatalogInfoResponseLimits.java
+++ b/src/main/java/com/squareup/square/types/CatalogInfoResponseLimits.java
@@ -680,5 +680,15 @@ public CatalogInfoResponseLimits build() {
                     updateItemModifierListsMaxModifierListsToDisable,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItem.java b/src/main/java/com/squareup/square/types/CatalogItem.java
index 944bbf4f..5f346a26 100644
--- a/src/main/java/com/squareup/square/types/CatalogItem.java
+++ b/src/main/java/com/squareup/square/types/CatalogItem.java
@@ -1486,5 +1486,15 @@ public CatalogItem build() {
                     isAlcoholic,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetails.java b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetails.java
index 78cbad41..2231b79c 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetails.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetails.java
@@ -227,5 +227,15 @@ public CatalogItemFoodAndBeverageDetails build() {
             return new CatalogItemFoodAndBeverageDetails(
                     calorieCount, dietaryPreferences, ingredients, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsDietaryPreference.java b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsDietaryPreference.java
index 2b736591..d34566ca 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsDietaryPreference.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsDietaryPreference.java
@@ -191,5 +191,15 @@ public CatalogItemFoodAndBeverageDetailsDietaryPreference build() {
             return new CatalogItemFoodAndBeverageDetailsDietaryPreference(
                     type, standardName, customName, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsIngredient.java b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsIngredient.java
index 62d63ea8..88373ccd 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsIngredient.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemFoodAndBeverageDetailsIngredient.java
@@ -189,5 +189,15 @@ public CatalogItemFoodAndBeverageDetailsIngredient build() {
             return new CatalogItemFoodAndBeverageDetailsIngredient(
                     type, standardName, customName, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemModifierListInfo.java b/src/main/java/com/squareup/square/types/CatalogItemModifierListInfo.java
index bc5255e8..e4b2f3e8 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemModifierListInfo.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemModifierListInfo.java
@@ -280,6 +280,10 @@ public interface ModifierListIdStage {
     public interface _FinalStage {
         CatalogItemModifierListInfo build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A set of <code>CatalogModifierOverride</code> objects that override default modifier settings for this item.</p>
          */
@@ -781,5 +785,17 @@ public CatalogItemModifierListInfo build() {
                     hiddenFromCustomerOverride,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemOption.java b/src/main/java/com/squareup/square/types/CatalogItemOption.java
index 475d494f..4266ed62 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemOption.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemOption.java
@@ -331,5 +331,15 @@ public Builder values(Nullable<List<CatalogObject>> values) {
         public CatalogItemOption build() {
             return new CatalogItemOption(name, displayName, description, showColors, values, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemOptionForItem.java b/src/main/java/com/squareup/square/types/CatalogItemOptionForItem.java
index 88415f7e..14af4298 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemOptionForItem.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemOptionForItem.java
@@ -120,5 +120,15 @@ public Builder itemOptionId(Nullable<String> itemOptionId) {
         public CatalogItemOptionForItem build() {
             return new CatalogItemOptionForItem(itemOptionId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemOptionValue.java b/src/main/java/com/squareup/square/types/CatalogItemOptionValue.java
index 554bd00f..9594efc1 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemOptionValue.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemOptionValue.java
@@ -328,5 +328,15 @@ public Builder ordinal(Nullable<Integer> ordinal) {
         public CatalogItemOptionValue build() {
             return new CatalogItemOptionValue(itemOptionId, name, description, color, ordinal, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemOptionValueForItemVariation.java b/src/main/java/com/squareup/square/types/CatalogItemOptionValueForItemVariation.java
index 75f21ea9..46bbe7ea 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemOptionValueForItemVariation.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemOptionValueForItemVariation.java
@@ -172,5 +172,15 @@ public Builder itemOptionValueId(Nullable<String> itemOptionValueId) {
         public CatalogItemOptionValueForItemVariation build() {
             return new CatalogItemOptionValueForItemVariation(itemOptionId, itemOptionValueId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogItemVariation.java b/src/main/java/com/squareup/square/types/CatalogItemVariation.java
index 42d3ea43..582b8707 100644
--- a/src/main/java/com/squareup/square/types/CatalogItemVariation.java
+++ b/src/main/java/com/squareup/square/types/CatalogItemVariation.java
@@ -1188,5 +1188,15 @@ public CatalogItemVariation build() {
                     kitchenName,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogMeasurementUnit.java b/src/main/java/com/squareup/square/types/CatalogMeasurementUnit.java
index 7adc3755..920c4de6 100644
--- a/src/main/java/com/squareup/square/types/CatalogMeasurementUnit.java
+++ b/src/main/java/com/squareup/square/types/CatalogMeasurementUnit.java
@@ -167,5 +167,15 @@ public Builder precision(Nullable<Integer> precision) {
         public CatalogMeasurementUnit build() {
             return new CatalogMeasurementUnit(measurementUnit, precision, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogModifier.java b/src/main/java/com/squareup/square/types/CatalogModifier.java
index 9bbaca28..767e5b0a 100644
--- a/src/main/java/com/squareup/square/types/CatalogModifier.java
+++ b/src/main/java/com/squareup/square/types/CatalogModifier.java
@@ -532,5 +532,15 @@ public CatalogModifier build() {
                     hiddenOnline,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogModifierList.java b/src/main/java/com/squareup/square/types/CatalogModifierList.java
index 816c986b..2c183020 100644
--- a/src/main/java/com/squareup/square/types/CatalogModifierList.java
+++ b/src/main/java/com/squareup/square/types/CatalogModifierList.java
@@ -836,5 +836,15 @@ public CatalogModifierList build() {
                     hiddenFromCustomer,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogModifierOverride.java b/src/main/java/com/squareup/square/types/CatalogModifierOverride.java
index 58779af7..f6c1232d 100644
--- a/src/main/java/com/squareup/square/types/CatalogModifierOverride.java
+++ b/src/main/java/com/squareup/square/types/CatalogModifierOverride.java
@@ -140,6 +140,10 @@ public interface ModifierIdStage {
     public interface _FinalStage {
         CatalogModifierOverride build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p><strong>Deprecated</strong>: Use <code>on_by_default_override</code> instead.</p>
          */
@@ -305,5 +309,17 @@ public CatalogModifierOverride build() {
             return new CatalogModifierOverride(
                     modifierId, onByDefault, hiddenOnlineOverride, onByDefaultOverride, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObject.java b/src/main/java/com/squareup/square/types/CatalogObject.java
index 5d6a5b55..467e59c2 100644
--- a/src/main/java/com/squareup/square/types/CatalogObject.java
+++ b/src/main/java/com/squareup/square/types/CatalogObject.java
@@ -322,6 +322,22 @@ public Optional<Object> _getUnknown() {
         return Optional.empty();
     }
 
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) return true;
+        return other instanceof CatalogObject && value.equals(((CatalogObject) other).value);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(value);
+    }
+
+    @Override
+    public String toString() {
+        return value.toString();
+    }
+
     @JsonValue
     private Value getValue() {
         return this.value;
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectAvailabilityPeriod.java b/src/main/java/com/squareup/square/types/CatalogObjectAvailabilityPeriod.java
index f56155c3..ab1962b5 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectAvailabilityPeriod.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectAvailabilityPeriod.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectAvailabilityPeriod build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectAvailabilityPeriod build() {
                     availabilityPeriodData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectBase.java b/src/main/java/com/squareup/square/types/CatalogObjectBase.java
index 7f864d12..b35e17dc 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectBase.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectBase.java
@@ -251,6 +251,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectBase build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -641,5 +645,17 @@ public CatalogObjectBase build() {
                     imageId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectBatch.java b/src/main/java/com/squareup/square/types/CatalogObjectBatch.java
index 932980fa..09c41a91 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectBatch.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectBatch.java
@@ -108,5 +108,15 @@ public Builder addAllObjects(List<CatalogObject> objects) {
         public CatalogObjectBatch build() {
             return new CatalogObjectBatch(objects, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectCategory.java b/src/main/java/com/squareup/square/types/CatalogObjectCategory.java
index f761ff86..ee3270e1 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectCategory.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectCategory.java
@@ -548,5 +548,15 @@ public CatalogObjectCategory build() {
                     imageId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectCustomAttributeDefinition.java b/src/main/java/com/squareup/square/types/CatalogObjectCustomAttributeDefinition.java
index 2c8a283a..faece5bf 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectCustomAttributeDefinition.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectCustomAttributeDefinition.java
@@ -266,6 +266,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectCustomAttributeDefinition build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -690,5 +694,17 @@ public CatalogObjectCustomAttributeDefinition build() {
                     customAttributeDefinitionData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectDiscount.java b/src/main/java/com/squareup/square/types/CatalogObjectDiscount.java
index 18b06039..c2466835 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectDiscount.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectDiscount.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectDiscount build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectDiscount build() {
                     discountData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectImage.java b/src/main/java/com/squareup/square/types/CatalogObjectImage.java
index ec1eb516..1f082547 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectImage.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectImage.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectImage build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectImage build() {
                     imageData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectItem.java b/src/main/java/com/squareup/square/types/CatalogObjectItem.java
index 6c4f0a8d..90d5d08b 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectItem.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectItem.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectItem build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectItem build() {
                     itemData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectItemOption.java b/src/main/java/com/squareup/square/types/CatalogObjectItemOption.java
index 30cc8067..fba79c0f 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectItemOption.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectItemOption.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectItemOption build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectItemOption build() {
                     itemOptionData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectItemOptionValue.java b/src/main/java/com/squareup/square/types/CatalogObjectItemOptionValue.java
index def6d5e3..0dacfba4 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectItemOptionValue.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectItemOptionValue.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectItemOptionValue build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectItemOptionValue build() {
                     itemOptionValueData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectItemVariation.java b/src/main/java/com/squareup/square/types/CatalogObjectItemVariation.java
index a1a07724..6f62af17 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectItemVariation.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectItemVariation.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectItemVariation build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectItemVariation build() {
                     itemVariationData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectMeasurementUnit.java b/src/main/java/com/squareup/square/types/CatalogObjectMeasurementUnit.java
index ae3b9437..d45337e4 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectMeasurementUnit.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectMeasurementUnit.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectMeasurementUnit build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectMeasurementUnit build() {
                     measurementUnitData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectModifier.java b/src/main/java/com/squareup/square/types/CatalogObjectModifier.java
index 3af3c0b9..a2952943 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectModifier.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectModifier.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectModifier build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectModifier build() {
                     modifierData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectModifierList.java b/src/main/java/com/squareup/square/types/CatalogObjectModifierList.java
index baa798db..5a3d8c76 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectModifierList.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectModifierList.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectModifierList build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectModifierList build() {
                     modifierListData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectPricingRule.java b/src/main/java/com/squareup/square/types/CatalogObjectPricingRule.java
index 074b61d8..f5f70dc2 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectPricingRule.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectPricingRule.java
@@ -266,6 +266,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectPricingRule build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -690,5 +694,17 @@ public CatalogObjectPricingRule build() {
                     pricingRuleData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectProductSet.java b/src/main/java/com/squareup/square/types/CatalogObjectProductSet.java
index 27cb05f7..e38880da 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectProductSet.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectProductSet.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectProductSet build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectProductSet build() {
                     productSetData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectQuickAmountsSettings.java b/src/main/java/com/squareup/square/types/CatalogObjectQuickAmountsSettings.java
index 33cbe242..ded851a6 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectQuickAmountsSettings.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectQuickAmountsSettings.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectQuickAmountsSettings build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectQuickAmountsSettings build() {
                     quickAmountsSettingsData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectReference.java b/src/main/java/com/squareup/square/types/CatalogObjectReference.java
index 6b1334e6..cc9f811e 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectReference.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectReference.java
@@ -169,5 +169,15 @@ public Builder catalogVersion(Nullable<Long> catalogVersion) {
         public CatalogObjectReference build() {
             return new CatalogObjectReference(objectId, catalogVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlan.java b/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlan.java
index e546f24d..6e019cd5 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlan.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlan.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectSubscriptionPlan build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectSubscriptionPlan build() {
                     subscriptionPlanData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlanVariation.java b/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlanVariation.java
index a65ebc30..f43689ba 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlanVariation.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectSubscriptionPlanVariation.java
@@ -266,6 +266,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectSubscriptionPlanVariation build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -690,5 +694,17 @@ public CatalogObjectSubscriptionPlanVariation build() {
                     subscriptionPlanVariationData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectTax.java b/src/main/java/com/squareup/square/types/CatalogObjectTax.java
index 949b2986..499bd4bf 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectTax.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectTax.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectTax build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectTax build() {
                     taxData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogObjectTimePeriod.java b/src/main/java/com/squareup/square/types/CatalogObjectTimePeriod.java
index 465b3498..f8e96daf 100644
--- a/src/main/java/com/squareup/square/types/CatalogObjectTimePeriod.java
+++ b/src/main/java/com/squareup/square/types/CatalogObjectTimePeriod.java
@@ -265,6 +265,10 @@ public interface IdStage {
     public interface _FinalStage {
         CatalogObjectTimePeriod build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Last modification <a href="https://developer.squareup.com/docs/build-basics/working-with-dates">timestamp</a> in RFC 3339 format, e.g., <code>&quot;2016-08-15T23:59:33.123Z&quot;</code>
          * would indicate the UTC time (denoted by <code>Z</code>) of August 15, 2016 at 23:59:33 and 123 milliseconds.</p>
@@ -686,5 +690,17 @@ public CatalogObjectTimePeriod build() {
                     timePeriodData,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogPricingRule.java b/src/main/java/com/squareup/square/types/CatalogPricingRule.java
index 89dd93d4..8aef23bd 100644
--- a/src/main/java/com/squareup/square/types/CatalogPricingRule.java
+++ b/src/main/java/com/squareup/square/types/CatalogPricingRule.java
@@ -762,5 +762,15 @@ public CatalogPricingRule build() {
                     customerGroupIdsAny,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogProductSet.java b/src/main/java/com/squareup/square/types/CatalogProductSet.java
index 93e381ce..326fa682 100644
--- a/src/main/java/com/squareup/square/types/CatalogProductSet.java
+++ b/src/main/java/com/squareup/square/types/CatalogProductSet.java
@@ -470,5 +470,15 @@ public CatalogProductSet build() {
                     allProducts,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQuery.java b/src/main/java/com/squareup/square/types/CatalogQuery.java
index 815468ba..cda29f95 100644
--- a/src/main/java/com/squareup/square/types/CatalogQuery.java
+++ b/src/main/java/com/squareup/square/types/CatalogQuery.java
@@ -411,5 +411,15 @@ public CatalogQuery build() {
                     itemVariationsForItemOptionValuesQuery,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryExact.java b/src/main/java/com/squareup/square/types/CatalogQueryExact.java
index 5cd6b3a0..deb69b03 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryExact.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryExact.java
@@ -96,6 +96,10 @@ public interface AttributeValueStage {
 
     public interface _FinalStage {
         CatalogQueryExact build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -146,5 +150,17 @@ public _FinalStage attributeValue(@NotNull String attributeValue) {
         public CatalogQueryExact build() {
             return new CatalogQueryExact(attributeName, attributeValue, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryItemVariationsForItemOptionValues.java b/src/main/java/com/squareup/square/types/CatalogQueryItemVariationsForItemOptionValues.java
index 230fa4c7..7ded5c59 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryItemVariationsForItemOptionValues.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryItemVariationsForItemOptionValues.java
@@ -127,5 +127,15 @@ public Builder itemOptionValueIds(Nullable<List<String>> itemOptionValueIds) {
         public CatalogQueryItemVariationsForItemOptionValues build() {
             return new CatalogQueryItemVariationsForItemOptionValues(itemOptionValueIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryItemsForItemOptions.java b/src/main/java/com/squareup/square/types/CatalogQueryItemsForItemOptions.java
index 80324dec..3c38aee9 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryItemsForItemOptions.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryItemsForItemOptions.java
@@ -126,5 +126,15 @@ public Builder itemOptionIds(Nullable<List<String>> itemOptionIds) {
         public CatalogQueryItemsForItemOptions build() {
             return new CatalogQueryItemsForItemOptions(itemOptionIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryItemsForModifierList.java b/src/main/java/com/squareup/square/types/CatalogQueryItemsForModifierList.java
index 725f492f..740a0f36 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryItemsForModifierList.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryItemsForModifierList.java
@@ -108,5 +108,15 @@ public Builder addAllModifierListIds(List<String> modifierListIds) {
         public CatalogQueryItemsForModifierList build() {
             return new CatalogQueryItemsForModifierList(modifierListIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryItemsForTax.java b/src/main/java/com/squareup/square/types/CatalogQueryItemsForTax.java
index 0023fa4e..934b2693 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryItemsForTax.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryItemsForTax.java
@@ -108,5 +108,15 @@ public Builder addAllTaxIds(List<String> taxIds) {
         public CatalogQueryItemsForTax build() {
             return new CatalogQueryItemsForTax(taxIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryPrefix.java b/src/main/java/com/squareup/square/types/CatalogQueryPrefix.java
index 7c8e8dfb..012e96ce 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryPrefix.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryPrefix.java
@@ -94,6 +94,10 @@ public interface AttributePrefixStage {
 
     public interface _FinalStage {
         CatalogQueryPrefix build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage attributePrefix(@NotNull String attributePrefix) {
         public CatalogQueryPrefix build() {
             return new CatalogQueryPrefix(attributeName, attributePrefix, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryRange.java b/src/main/java/com/squareup/square/types/CatalogQueryRange.java
index c705c589..591c69a5 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryRange.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryRange.java
@@ -128,6 +128,10 @@ public interface AttributeNameStage {
     public interface _FinalStage {
         CatalogQueryRange build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The desired minimum value for the search attribute (inclusive).</p>
          */
@@ -256,5 +260,17 @@ public _FinalStage attributeMinValue(Optional<Long> attributeMinValue) {
         public CatalogQueryRange build() {
             return new CatalogQueryRange(attributeName, attributeMinValue, attributeMaxValue, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQuerySet.java b/src/main/java/com/squareup/square/types/CatalogQuerySet.java
index ebf9d589..db17e778 100644
--- a/src/main/java/com/squareup/square/types/CatalogQuerySet.java
+++ b/src/main/java/com/squareup/square/types/CatalogQuerySet.java
@@ -93,6 +93,10 @@ public interface AttributeNameStage {
     public interface _FinalStage {
         CatalogQuerySet build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The desired values of the search attribute. Matching of the attribute values is exact and case insensitive.
          * A maximum of 250 values may be searched in a request.</p>
@@ -176,5 +180,17 @@ public _FinalStage attributeValues(List<String> attributeValues) {
         public CatalogQuerySet build() {
             return new CatalogQuerySet(attributeName, attributeValues, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQuerySortedAttribute.java b/src/main/java/com/squareup/square/types/CatalogQuerySortedAttribute.java
index e97dd10a..1b878e73 100644
--- a/src/main/java/com/squareup/square/types/CatalogQuerySortedAttribute.java
+++ b/src/main/java/com/squareup/square/types/CatalogQuerySortedAttribute.java
@@ -122,6 +122,10 @@ public interface AttributeNameStage {
     public interface _FinalStage {
         CatalogQuerySortedAttribute build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The first attribute value to be returned by the query. Ascending sorts will return only
          * objects with this value or greater, while descending sorts will return only objects with this value
@@ -244,5 +248,17 @@ public CatalogQuerySortedAttribute build() {
             return new CatalogQuerySortedAttribute(
                     attributeName, initialAttributeValue, sortOrder, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQueryText.java b/src/main/java/com/squareup/square/types/CatalogQueryText.java
index 37cb61a8..2d079116 100644
--- a/src/main/java/com/squareup/square/types/CatalogQueryText.java
+++ b/src/main/java/com/squareup/square/types/CatalogQueryText.java
@@ -108,5 +108,15 @@ public Builder addAllKeywords(List<String> keywords) {
         public CatalogQueryText build() {
             return new CatalogQueryText(keywords, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQuickAmount.java b/src/main/java/com/squareup/square/types/CatalogQuickAmount.java
index a9c7ff82..d92caea0 100644
--- a/src/main/java/com/squareup/square/types/CatalogQuickAmount.java
+++ b/src/main/java/com/squareup/square/types/CatalogQuickAmount.java
@@ -151,6 +151,10 @@ public interface AmountStage {
     public interface _FinalStage {
         CatalogQuickAmount build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Describes the ranking of the Quick Amount provided by machine learning model, in the range [0, 100].
          * MANUAL type amount will always have score = 100.</p>
@@ -300,5 +304,17 @@ public _FinalStage score(Optional<Long> score) {
         public CatalogQuickAmount build() {
             return new CatalogQuickAmount(type, amount, score, ordinal, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogQuickAmountsSettings.java b/src/main/java/com/squareup/square/types/CatalogQuickAmountsSettings.java
index bdb78099..a271998e 100644
--- a/src/main/java/com/squareup/square/types/CatalogQuickAmountsSettings.java
+++ b/src/main/java/com/squareup/square/types/CatalogQuickAmountsSettings.java
@@ -132,6 +132,10 @@ public interface OptionStage {
     public interface _FinalStage {
         CatalogQuickAmountsSettings build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Represents location's eligibility for auto amounts
          * The boolean should be consistent with whether there are AUTO amounts in the <code>amounts</code>.</p>
@@ -266,5 +270,17 @@ public _FinalStage eligibleForAutoAmounts(Optional<Boolean> eligibleForAutoAmoun
         public CatalogQuickAmountsSettings build() {
             return new CatalogQuickAmountsSettings(option, eligibleForAutoAmounts, amounts, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogStockConversion.java b/src/main/java/com/squareup/square/types/CatalogStockConversion.java
index 83262314..26e528db 100644
--- a/src/main/java/com/squareup/square/types/CatalogStockConversion.java
+++ b/src/main/java/com/squareup/square/types/CatalogStockConversion.java
@@ -140,6 +140,10 @@ public interface NonstockableQuantityStage {
 
     public interface _FinalStage {
         CatalogStockConversion build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -229,5 +233,17 @@ public CatalogStockConversion build() {
             return new CatalogStockConversion(
                     stockableItemVariationId, stockableQuantity, nonstockableQuantity, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogSubscriptionPlan.java b/src/main/java/com/squareup/square/types/CatalogSubscriptionPlan.java
index 75880e55..c6cfe16c 100644
--- a/src/main/java/com/squareup/square/types/CatalogSubscriptionPlan.java
+++ b/src/main/java/com/squareup/square/types/CatalogSubscriptionPlan.java
@@ -202,6 +202,10 @@ public interface NameStage {
     public interface _FinalStage {
         CatalogSubscriptionPlan build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A list of SubscriptionPhase containing the <a href="entity:SubscriptionPhase">SubscriptionPhase</a> for this plan.
          * This field it required. Not including this field will throw a REQUIRED_FIELD_MISSING error</p>
@@ -485,5 +489,17 @@ public CatalogSubscriptionPlan build() {
                     allItems,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogSubscriptionPlanVariation.java b/src/main/java/com/squareup/square/types/CatalogSubscriptionPlanVariation.java
index a1706694..5293b7fe 100644
--- a/src/main/java/com/squareup/square/types/CatalogSubscriptionPlanVariation.java
+++ b/src/main/java/com/squareup/square/types/CatalogSubscriptionPlanVariation.java
@@ -195,6 +195,10 @@ public interface NameStage {
     public interface _FinalStage {
         CatalogSubscriptionPlanVariation build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A list containing each <a href="entity:SubscriptionPhase">SubscriptionPhase</a> for this plan variation.</p>
          */
@@ -481,5 +485,17 @@ public CatalogSubscriptionPlanVariation build() {
                     successorPlanVariationId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogTax.java b/src/main/java/com/squareup/square/types/CatalogTax.java
index 4b78e761..b270f009 100644
--- a/src/main/java/com/squareup/square/types/CatalogTax.java
+++ b/src/main/java/com/squareup/square/types/CatalogTax.java
@@ -405,5 +405,15 @@ public CatalogTax build() {
                     appliesToProductSetId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogTimePeriod.java b/src/main/java/com/squareup/square/types/CatalogTimePeriod.java
index ebb06e4f..12de1765 100644
--- a/src/main/java/com/squareup/square/types/CatalogTimePeriod.java
+++ b/src/main/java/com/squareup/square/types/CatalogTimePeriod.java
@@ -140,5 +140,15 @@ public Builder event(Nullable<String> event) {
         public CatalogTimePeriod build() {
             return new CatalogTimePeriod(event, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogV1Id.java b/src/main/java/com/squareup/square/types/CatalogV1Id.java
index b83cdbb1..364c8be5 100644
--- a/src/main/java/com/squareup/square/types/CatalogV1Id.java
+++ b/src/main/java/com/squareup/square/types/CatalogV1Id.java
@@ -169,5 +169,15 @@ public Builder locationId(Nullable<String> locationId) {
         public CatalogV1Id build() {
             return new CatalogV1Id(catalogV1Id, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEvent.java b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEvent.java
index 34951333..3f3a3934 100644
--- a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CatalogVersionUpdatedEventData data) {
         public CatalogVersionUpdatedEvent build() {
             return new CatalogVersionUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventCatalogVersion.java b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventCatalogVersion.java
index 3ad5922a..69f2d912 100644
--- a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventCatalogVersion.java
+++ b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventCatalogVersion.java
@@ -99,5 +99,15 @@ public Builder updatedAt(String updatedAt) {
         public CatalogVersionUpdatedEventCatalogVersion build() {
             return new CatalogVersionUpdatedEventCatalogVersion(updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventData.java b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventData.java
index aa87bc6f..7e9d2561 100644
--- a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventData.java
@@ -151,5 +151,15 @@ public Builder object(CatalogVersionUpdatedEventObject object) {
         public CatalogVersionUpdatedEventData build() {
             return new CatalogVersionUpdatedEventData(type, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventObject.java b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventObject.java
index 2ae90317..bba714b9 100644
--- a/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CatalogVersionUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder catalogVersion(CatalogVersionUpdatedEventCatalogVersion catalogVe
         public CatalogVersionUpdatedEventObject build() {
             return new CatalogVersionUpdatedEventObject(catalogVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CategoryPathToRootNode.java b/src/main/java/com/squareup/square/types/CategoryPathToRootNode.java
index 03479b28..7922475a 100644
--- a/src/main/java/com/squareup/square/types/CategoryPathToRootNode.java
+++ b/src/main/java/com/squareup/square/types/CategoryPathToRootNode.java
@@ -169,5 +169,15 @@ public Builder categoryName(Nullable<String> categoryName) {
         public CategoryPathToRootNode build() {
             return new CategoryPathToRootNode(categoryId, categoryName, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateRequest.java b/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateRequest.java
index 1fa080c1..80245a96 100644
--- a/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateRequest.java
+++ b/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateRequest.java
@@ -131,6 +131,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         ChangeBillingAnchorDateRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The anchor day for the billing cycle.</p>
          */
@@ -272,5 +276,17 @@ public ChangeBillingAnchorDateRequest build() {
             return new ChangeBillingAnchorDateRequest(
                     subscriptionId, monthlyBillingAnchorDate, effectiveDate, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateResponse.java b/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateResponse.java
index 299b77f9..725a84eb 100644
--- a/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateResponse.java
+++ b/src/main/java/com/squareup/square/types/ChangeBillingAnchorDateResponse.java
@@ -158,5 +158,15 @@ public Builder actions(List<SubscriptionAction> actions) {
         public ChangeBillingAnchorDateResponse build() {
             return new ChangeBillingAnchorDateResponse(errors, subscription, actions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ChangesInventoryRequest.java b/src/main/java/com/squareup/square/types/ChangesInventoryRequest.java
index 83fd2eeb..a57d1b74 100644
--- a/src/main/java/com/squareup/square/types/ChangesInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/ChangesInventoryRequest.java
@@ -131,6 +131,10 @@ public interface CatalogObjectIdStage {
     public interface _FinalStage {
         ChangesInventoryRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <a href="entity:Location">Location</a> IDs to look up as a comma-separated
          * list. An empty list queries all locations.</p>
@@ -271,5 +275,17 @@ public _FinalStage locationIds(Optional<String> locationIds) {
         public ChangesInventoryRequest build() {
             return new ChangesInventoryRequest(catalogObjectId, locationIds, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Channel.java b/src/main/java/com/squareup/square/types/Channel.java
index 2ab67bdf..40368a0c 100644
--- a/src/main/java/com/squareup/square/types/Channel.java
+++ b/src/main/java/com/squareup/square/types/Channel.java
@@ -347,5 +347,15 @@ public Channel build() {
             return new Channel(
                     id, merchantId, name, version, reference, status, createdAt, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ChargeRequestAdditionalRecipient.java b/src/main/java/com/squareup/square/types/ChargeRequestAdditionalRecipient.java
index f913adf8..7e46a777 100644
--- a/src/main/java/com/squareup/square/types/ChargeRequestAdditionalRecipient.java
+++ b/src/main/java/com/squareup/square/types/ChargeRequestAdditionalRecipient.java
@@ -115,6 +115,10 @@ public interface AmountMoneyStage {
 
     public interface _FinalStage {
         ChargeRequestAdditionalRecipient build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -178,5 +182,17 @@ public _FinalStage amountMoney(@NotNull Money amountMoney) {
         public ChargeRequestAdditionalRecipient build() {
             return new ChargeRequestAdditionalRecipient(locationId, description, amountMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Checkout.java b/src/main/java/com/squareup/square/types/Checkout.java
index 5e06ec7b..566f8672 100644
--- a/src/main/java/com/squareup/square/types/Checkout.java
+++ b/src/main/java/com/squareup/square/types/Checkout.java
@@ -149,7 +149,7 @@ public Optional<Address> getPrePopulateShippingAddress() {
      * parameters. For example, if the provided redirect_url is
      * <code>http://www.example.com/order-complete</code>, a successful transaction redirects
      * the customer to:
-     * <p>&lt;pre&gt;&lt;code&gt;http://www.example.com/order-complete?checkoutId=xxxxxx&amp;amp;orderId=xxxxxx&amp;amp;referenceId=xxxxxx&amp;amp;transactionId=xxxxxx&lt;/code&gt;&lt;/pre&gt;</p>
+     * <p><pre><code>http://www.example.com/order-complete?checkoutId=xxxxxx&amp;amp;orderId=xxxxxx&amp;amp;referenceId=xxxxxx&amp;amp;transactionId=xxxxxx</code></pre></p>
      * <p>If you do not provide a redirect URL, Square Checkout will display an order
      * confirmation page on your behalf; however Square strongly recommends that
      * you provide a redirect URL so you can verify the transaction results and
@@ -462,7 +462,7 @@ public Builder prePopulateShippingAddress(Address prePopulateShippingAddress) {
          * parameters. For example, if the provided redirect_url is
          * <code>http://www.example.com/order-complete</code>, a successful transaction redirects
          * the customer to:</p>
-         * <p>&lt;pre&gt;&lt;code&gt;http://www.example.com/order-complete?checkoutId=xxxxxx&amp;amp;orderId=xxxxxx&amp;amp;referenceId=xxxxxx&amp;amp;transactionId=xxxxxx&lt;/code&gt;&lt;/pre&gt;</p>
+         * <p><pre><code>http://www.example.com/order-complete?checkoutId=xxxxxx&amp;amp;orderId=xxxxxx&amp;amp;referenceId=xxxxxx&amp;amp;transactionId=xxxxxx</code></pre></p>
          * <p>If you do not provide a redirect URL, Square Checkout will display an order
          * confirmation page on your behalf; however Square strongly recommends that
          * you provide a redirect URL so you can verify the transaction results and
@@ -558,5 +558,15 @@ public Checkout build() {
                     additionalRecipients,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutLocationSettings.java b/src/main/java/com/squareup/square/types/CheckoutLocationSettings.java
index d8a5e511..669dc703 100644
--- a/src/main/java/com/squareup/square/types/CheckoutLocationSettings.java
+++ b/src/main/java/com/squareup/square/types/CheckoutLocationSettings.java
@@ -366,5 +366,15 @@ public CheckoutLocationSettings build() {
                     updatedAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsBranding.java b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsBranding.java
index c46e512c..9f8c51f2 100644
--- a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsBranding.java
+++ b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsBranding.java
@@ -186,5 +186,15 @@ public Builder buttonShape(CheckoutLocationSettingsBrandingButtonShape buttonSha
         public CheckoutLocationSettingsBranding build() {
             return new CheckoutLocationSettingsBranding(headerType, buttonColor, buttonShape, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsCoupons.java b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsCoupons.java
index ced1c06a..d9bdf058 100644
--- a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsCoupons.java
+++ b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsCoupons.java
@@ -120,5 +120,15 @@ public Builder enabled(Nullable<Boolean> enabled) {
         public CheckoutLocationSettingsCoupons build() {
             return new CheckoutLocationSettingsCoupons(enabled, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsPolicy.java b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsPolicy.java
index 71480778..b81b9504 100644
--- a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsPolicy.java
+++ b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsPolicy.java
@@ -220,5 +220,15 @@ public Builder description(Nullable<String> description) {
         public CheckoutLocationSettingsPolicy build() {
             return new CheckoutLocationSettingsPolicy(uid, title, description, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsTipping.java b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsTipping.java
index 4ed18e9a..305aa9f5 100644
--- a/src/main/java/com/squareup/square/types/CheckoutLocationSettingsTipping.java
+++ b/src/main/java/com/squareup/square/types/CheckoutLocationSettingsTipping.java
@@ -311,5 +311,15 @@ public CheckoutLocationSettingsTipping build() {
             return new CheckoutLocationSettingsTipping(
                     percentages, smartTippingEnabled, defaultPercent, smartTips, defaultSmartTip, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutMerchantSettings.java b/src/main/java/com/squareup/square/types/CheckoutMerchantSettings.java
index 81c39985..66562092 100644
--- a/src/main/java/com/squareup/square/types/CheckoutMerchantSettings.java
+++ b/src/main/java/com/squareup/square/types/CheckoutMerchantSettings.java
@@ -134,5 +134,15 @@ public Builder updatedAt(String updatedAt) {
         public CheckoutMerchantSettings build() {
             return new CheckoutMerchantSettings(paymentMethods, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethods.java b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethods.java
index c5cbabca..fe8f42d1 100644
--- a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethods.java
+++ b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethods.java
@@ -168,5 +168,15 @@ public CheckoutMerchantSettingsPaymentMethods build() {
             return new CheckoutMerchantSettingsPaymentMethods(
                     applePay, googlePay, cashApp, afterpayClearpay, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay.java b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay.java
index 3b66ff8e..7c5b8098 100644
--- a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay.java
+++ b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay.java
@@ -169,5 +169,15 @@ public CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay build() {
             return new CheckoutMerchantSettingsPaymentMethodsAfterpayClearpay(
                     orderEligibilityRange, itemEligibilityRange, enabled, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange.java b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange.java
index 4bd6d8fd..ac1ec6ab 100644
--- a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange.java
+++ b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange.java
@@ -84,6 +84,10 @@ public interface MaxStage {
 
     public interface _FinalStage {
         CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -123,5 +127,17 @@ public CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange bu
             return new CheckoutMerchantSettingsPaymentMethodsAfterpayClearpayEligibilityRange(
                     min, max, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsPaymentMethod.java b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsPaymentMethod.java
index c0177236..160bd83b 100644
--- a/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsPaymentMethod.java
+++ b/src/main/java/com/squareup/square/types/CheckoutMerchantSettingsPaymentMethodsPaymentMethod.java
@@ -122,5 +122,15 @@ public Builder enabled(Nullable<Boolean> enabled) {
         public CheckoutMerchantSettingsPaymentMethodsPaymentMethod build() {
             return new CheckoutMerchantSettingsPaymentMethodsPaymentMethod(enabled, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CheckoutOptions.java b/src/main/java/com/squareup/square/types/CheckoutOptions.java
index 8906ca6d..5659f01d 100644
--- a/src/main/java/com/squareup/square/types/CheckoutOptions.java
+++ b/src/main/java/com/squareup/square/types/CheckoutOptions.java
@@ -596,5 +596,15 @@ public CheckoutOptions build() {
                     enableLoyalty,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ClearpayDetails.java b/src/main/java/com/squareup/square/types/ClearpayDetails.java
index 5b415ea8..825bcd92 100644
--- a/src/main/java/com/squareup/square/types/ClearpayDetails.java
+++ b/src/main/java/com/squareup/square/types/ClearpayDetails.java
@@ -120,5 +120,15 @@ public Builder emailAddress(Nullable<String> emailAddress) {
         public ClearpayDetails build() {
             return new ClearpayDetails(emailAddress, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CloneOrderRequest.java b/src/main/java/com/squareup/square/types/CloneOrderRequest.java
index 59e2100e..ab1aa179 100644
--- a/src/main/java/com/squareup/square/types/CloneOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/CloneOrderRequest.java
@@ -126,6 +126,10 @@ public interface OrderIdStage {
     public interface _FinalStage {
         CloneOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>An optional order version for concurrency protection.</p>
          * <p>If a version is provided, it must match the latest stored version of the order to clone.
@@ -262,5 +266,17 @@ public _FinalStage version(Optional<Integer> version) {
         public CloneOrderRequest build() {
             return new CloneOrderRequest(orderId, version, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CloneOrderResponse.java b/src/main/java/com/squareup/square/types/CloneOrderResponse.java
index 2d1fddf2..4fe41955 100644
--- a/src/main/java/com/squareup/square/types/CloneOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/CloneOrderResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CloneOrderResponse build() {
             return new CloneOrderResponse(order, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CollectedData.java b/src/main/java/com/squareup/square/types/CollectedData.java
index c3025e90..5af96809 100644
--- a/src/main/java/com/squareup/square/types/CollectedData.java
+++ b/src/main/java/com/squareup/square/types/CollectedData.java
@@ -97,5 +97,15 @@ public Builder inputText(String inputText) {
         public CollectedData build() {
             return new CollectedData(inputText, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CompletePaymentRequest.java b/src/main/java/com/squareup/square/types/CompletePaymentRequest.java
index dc28403e..f4eea57c 100644
--- a/src/main/java/com/squareup/square/types/CompletePaymentRequest.java
+++ b/src/main/java/com/squareup/square/types/CompletePaymentRequest.java
@@ -105,6 +105,10 @@ public interface PaymentIdStage {
     public interface _FinalStage {
         CompletePaymentRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Used for optimistic concurrency. This opaque token identifies the current <code>Payment</code>
          * version that the caller expects. If the server has a different version of the Payment,
@@ -193,5 +197,17 @@ public _FinalStage versionToken(Optional<String> versionToken) {
         public CompletePaymentRequest build() {
             return new CompletePaymentRequest(paymentId, versionToken, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CompletePaymentResponse.java b/src/main/java/com/squareup/square/types/CompletePaymentResponse.java
index a8b2f5b2..60ae98b9 100644
--- a/src/main/java/com/squareup/square/types/CompletePaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/CompletePaymentResponse.java
@@ -127,5 +127,15 @@ public Builder payment(Payment payment) {
         public CompletePaymentResponse build() {
             return new CompletePaymentResponse(errors, payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Component.java b/src/main/java/com/squareup/square/types/Component.java
index 7112a461..32477ff8 100644
--- a/src/main/java/com/squareup/square/types/Component.java
+++ b/src/main/java/com/squareup/square/types/Component.java
@@ -156,6 +156,10 @@ public interface TypeStage {
     public interface _FinalStage {
         Component build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Structured data for an <code>Application</code>, set for Components of type <code>APPLICATION</code>.</p>
          */
@@ -349,5 +353,17 @@ public Component build() {
                     ethernetDetails,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ConfirmationDecision.java b/src/main/java/com/squareup/square/types/ConfirmationDecision.java
index 62906a02..f888818e 100644
--- a/src/main/java/com/squareup/square/types/ConfirmationDecision.java
+++ b/src/main/java/com/squareup/square/types/ConfirmationDecision.java
@@ -97,5 +97,15 @@ public Builder hasAgreed(Boolean hasAgreed) {
         public ConfirmationDecision build() {
             return new ConfirmationDecision(hasAgreed, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ConfirmationOptions.java b/src/main/java/com/squareup/square/types/ConfirmationOptions.java
index 68ccdb8b..009f3238 100644
--- a/src/main/java/com/squareup/square/types/ConfirmationOptions.java
+++ b/src/main/java/com/squareup/square/types/ConfirmationOptions.java
@@ -159,6 +159,10 @@ public interface AgreeButtonTextStage {
     public interface _FinalStage {
         ConfirmationOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The button text to display indicating the customer does not agree to the displayed terms.</p>
          */
@@ -300,5 +304,17 @@ public ConfirmationOptions build() {
             return new ConfirmationOptions(
                     title, body, agreeButtonText, disagreeButtonText, decision, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Coordinates.java b/src/main/java/com/squareup/square/types/Coordinates.java
index 4c307783..773e3a94 100644
--- a/src/main/java/com/squareup/square/types/Coordinates.java
+++ b/src/main/java/com/squareup/square/types/Coordinates.java
@@ -169,5 +169,15 @@ public Builder longitude(Nullable<Double> longitude) {
         public Coordinates build() {
             return new Coordinates(latitude, longitude, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBankAccountRequest.java b/src/main/java/com/squareup/square/types/CreateBankAccountRequest.java
index b42471c4..09da01c4 100644
--- a/src/main/java/com/squareup/square/types/CreateBankAccountRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateBankAccountRequest.java
@@ -118,6 +118,10 @@ public interface SourceIdStage {
     public interface _FinalStage {
         CreateBankAccountRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The ID of the customer associated with the bank account to be stored.</p>
          */
@@ -199,5 +203,17 @@ public _FinalStage customerId(Optional<String> customerId) {
         public CreateBankAccountRequest build() {
             return new CreateBankAccountRequest(idempotencyKey, sourceId, customerId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBankAccountResponse.java b/src/main/java/com/squareup/square/types/CreateBankAccountResponse.java
index 28179e25..a5426ad9 100644
--- a/src/main/java/com/squareup/square/types/CreateBankAccountResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateBankAccountResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateBankAccountResponse build() {
             return new CreateBankAccountResponse(bankAccount, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBookingCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/CreateBookingCustomAttributeDefinitionResponse.java
index c9fe16eb..88dc7a2c 100644
--- a/src/main/java/com/squareup/square/types/CreateBookingCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateBookingCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public CreateBookingCustomAttributeDefinitionResponse build() {
             return new CreateBookingCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBookingRequest.java b/src/main/java/com/squareup/square/types/CreateBookingRequest.java
index 3794d737..24cfe36e 100644
--- a/src/main/java/com/squareup/square/types/CreateBookingRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateBookingRequest.java
@@ -91,6 +91,10 @@ public interface BookingStage {
     public interface _FinalStage {
         CreateBookingRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique key to make this request an idempotent operation.</p>
          */
@@ -153,5 +157,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateBookingRequest build() {
             return new CreateBookingRequest(idempotencyKey, booking, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBookingResponse.java b/src/main/java/com/squareup/square/types/CreateBookingResponse.java
index 392db8fc..28111795 100644
--- a/src/main/java/com/squareup/square/types/CreateBookingResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateBookingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateBookingResponse build() {
             return new CreateBookingResponse(booking, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateBreakTypeResponse.java b/src/main/java/com/squareup/square/types/CreateBreakTypeResponse.java
index 16728e2c..e795fddf 100644
--- a/src/main/java/com/squareup/square/types/CreateBreakTypeResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateBreakTypeResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateBreakTypeResponse build() {
             return new CreateBreakTypeResponse(breakType, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCardRequest.java b/src/main/java/com/squareup/square/types/CreateCardRequest.java
index 1401fafa..192fa24e 100644
--- a/src/main/java/com/squareup/square/types/CreateCardRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateCardRequest.java
@@ -143,6 +143,10 @@ public interface CardStage {
     public interface _FinalStage {
         CreateCardRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>An identifying token generated by <a href="https://developer.squareup.com/reference/sdks/web/payments/objects/Payments#Payments.verifyBuyer">Payments.verifyBuyer()</a>.
          * Verification tokens encapsulate customer device information and 3-D Secure
@@ -250,5 +254,17 @@ public _FinalStage verificationToken(Optional<String> verificationToken) {
         public CreateCardRequest build() {
             return new CreateCardRequest(idempotencyKey, sourceId, verificationToken, card, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCardResponse.java b/src/main/java/com/squareup/square/types/CreateCardResponse.java
index 4a1d33bd..fb920a6d 100644
--- a/src/main/java/com/squareup/square/types/CreateCardResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCardResponse.java
@@ -127,5 +127,15 @@ public Builder card(Card card) {
         public CreateCardResponse build() {
             return new CreateCardResponse(errors, card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCatalogImageRequest.java b/src/main/java/com/squareup/square/types/CreateCatalogImageRequest.java
index cfb0076c..4bd32110 100644
--- a/src/main/java/com/squareup/square/types/CreateCatalogImageRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateCatalogImageRequest.java
@@ -136,6 +136,10 @@ public interface ImageStage {
     public interface _FinalStage {
         CreateCatalogImageRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Unique ID of the <code>CatalogObject</code> to attach this <code>CatalogImage</code> object to. Leave this
          * field empty to create unattached images, for example if you are building an integration
@@ -262,5 +266,17 @@ public _FinalStage objectId(Optional<String> objectId) {
         public CreateCatalogImageRequest build() {
             return new CreateCatalogImageRequest(idempotencyKey, objectId, image, isPrimary, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCatalogImageResponse.java b/src/main/java/com/squareup/square/types/CreateCatalogImageResponse.java
index 19d18992..ae4b9fba 100644
--- a/src/main/java/com/squareup/square/types/CreateCatalogImageResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCatalogImageResponse.java
@@ -129,5 +129,15 @@ public Builder image(CatalogObject image) {
         public CreateCatalogImageResponse build() {
             return new CreateCatalogImageResponse(errors, image, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCheckoutRequest.java b/src/main/java/com/squareup/square/types/CreateCheckoutRequest.java
index c3731682..4a62459b 100644
--- a/src/main/java/com/squareup/square/types/CreateCheckoutRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateCheckoutRequest.java
@@ -263,6 +263,10 @@ public interface OrderStage {
     public interface _FinalStage {
         CreateCheckoutRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>If <code>true</code>, Square Checkout collects shipping information on your behalf and stores
          * that information with the transaction information in the Square Seller Dashboard.</p>
@@ -638,5 +642,17 @@ public CreateCheckoutRequest build() {
                     note,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCheckoutResponse.java b/src/main/java/com/squareup/square/types/CreateCheckoutResponse.java
index a053c5f6..3866ce5c 100644
--- a/src/main/java/com/squareup/square/types/CreateCheckoutResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCheckoutResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateCheckoutResponse build() {
             return new CreateCheckoutResponse(checkout, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCustomerCardResponse.java b/src/main/java/com/squareup/square/types/CreateCustomerCardResponse.java
index 8ac91490..c6715760 100644
--- a/src/main/java/com/squareup/square/types/CreateCustomerCardResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCustomerCardResponse.java
@@ -127,5 +127,15 @@ public Builder card(Card card) {
         public CreateCustomerCardResponse build() {
             return new CreateCustomerCardResponse(errors, card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCustomerCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/CreateCustomerCustomAttributeDefinitionResponse.java
index d712531f..a99b915c 100644
--- a/src/main/java/com/squareup/square/types/CreateCustomerCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCustomerCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public CreateCustomerCustomAttributeDefinitionResponse build() {
             return new CreateCustomerCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCustomerGroupResponse.java b/src/main/java/com/squareup/square/types/CreateCustomerGroupResponse.java
index dcc691f9..fd8fcf57 100644
--- a/src/main/java/com/squareup/square/types/CreateCustomerGroupResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCustomerGroupResponse.java
@@ -127,5 +127,15 @@ public Builder group(CustomerGroup group) {
         public CreateCustomerGroupResponse build() {
             return new CreateCustomerGroupResponse(errors, group, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCustomerRequest.java b/src/main/java/com/squareup/square/types/CreateCustomerRequest.java
index dc5925e0..7a124014 100644
--- a/src/main/java/com/squareup/square/types/CreateCustomerRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateCustomerRequest.java
@@ -486,5 +486,15 @@ public CreateCustomerRequest build() {
                     taxIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateCustomerResponse.java b/src/main/java/com/squareup/square/types/CreateCustomerResponse.java
index 97c3b3fa..9ecfffc2 100644
--- a/src/main/java/com/squareup/square/types/CreateCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateCustomerResponse.java
@@ -127,5 +127,15 @@ public Builder customer(Customer customer) {
         public CreateCustomerResponse build() {
             return new CreateCustomerResponse(errors, customer, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateDeviceCodeResponse.java b/src/main/java/com/squareup/square/types/CreateDeviceCodeResponse.java
index fcd18b3f..5ef45058 100644
--- a/src/main/java/com/squareup/square/types/CreateDeviceCodeResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateDeviceCodeResponse.java
@@ -127,5 +127,15 @@ public Builder deviceCode(DeviceCode deviceCode) {
         public CreateDeviceCodeResponse build() {
             return new CreateDeviceCodeResponse(errors, deviceCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileRequest.java b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileRequest.java
index 7238cd51..b2d21d62 100644
--- a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileRequest.java
@@ -109,6 +109,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         CreateDisputeEvidenceFileRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The type of evidence you are uploading.
          * See <a href="#type-disputeevidencetype">DisputeEvidenceType</a> for possible values</p>
@@ -208,5 +212,17 @@ public CreateDisputeEvidenceFileRequest build() {
             return new CreateDisputeEvidenceFileRequest(
                     idempotencyKey, evidenceType, contentType, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileResponse.java b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileResponse.java
index f0d7e8d4..360f1f18 100644
--- a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceFileResponse.java
@@ -129,5 +129,15 @@ public Builder evidence(DisputeEvidence evidence) {
         public CreateDisputeEvidenceFileResponse build() {
             return new CreateDisputeEvidenceFileResponse(errors, evidence, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextRequest.java b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextRequest.java
index 7e804786..a41fb6c5 100644
--- a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextRequest.java
@@ -135,6 +135,10 @@ public interface EvidenceTextStage {
     public interface _FinalStage {
         CreateDisputeEvidenceTextRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The type of evidence you are uploading.
          * See <a href="#type-disputeevidencetype">DisputeEvidenceType</a> for possible values</p>
@@ -231,5 +235,17 @@ public CreateDisputeEvidenceTextRequest build() {
             return new CreateDisputeEvidenceTextRequest(
                     disputeId, idempotencyKey, evidenceType, evidenceText, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextResponse.java b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextResponse.java
index d6309c5c..350ab23d 100644
--- a/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateDisputeEvidenceTextResponse.java
@@ -129,5 +129,15 @@ public Builder evidence(DisputeEvidence evidence) {
         public CreateDisputeEvidenceTextResponse build() {
             return new CreateDisputeEvidenceTextResponse(errors, evidence, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateEvidenceFileDisputesRequest.java b/src/main/java/com/squareup/square/types/CreateEvidenceFileDisputesRequest.java
index a863d33b..0b2fe5bf 100644
--- a/src/main/java/com/squareup/square/types/CreateEvidenceFileDisputesRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateEvidenceFileDisputesRequest.java
@@ -100,6 +100,10 @@ public interface DisputeIdStage {
     public interface _FinalStage {
         CreateEvidenceFileDisputesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         _FinalStage imageFile(Optional<File> imageFile);
 
         _FinalStage imageFile(File imageFile);
@@ -172,5 +176,17 @@ public _FinalStage imageFile(Optional<File> imageFile) {
         public CreateEvidenceFileDisputesRequest build() {
             return new CreateEvidenceFileDisputesRequest(imageFile, disputeId, request, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateGiftCardActivityResponse.java b/src/main/java/com/squareup/square/types/CreateGiftCardActivityResponse.java
index 7cc0cd93..35481fa4 100644
--- a/src/main/java/com/squareup/square/types/CreateGiftCardActivityResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateGiftCardActivityResponse.java
@@ -129,5 +129,15 @@ public Builder giftCardActivity(GiftCardActivity giftCardActivity) {
         public CreateGiftCardActivityResponse build() {
             return new CreateGiftCardActivityResponse(errors, giftCardActivity, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateGiftCardRequest.java b/src/main/java/com/squareup/square/types/CreateGiftCardRequest.java
index b14f9cb6..3d454efa 100644
--- a/src/main/java/com/squareup/square/types/CreateGiftCardRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateGiftCardRequest.java
@@ -147,6 +147,10 @@ public interface GiftCardStage {
 
     public interface _FinalStage {
         CreateGiftCardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -242,5 +246,17 @@ public _FinalStage giftCard(@NotNull GiftCard giftCard) {
         public CreateGiftCardRequest build() {
             return new CreateGiftCardRequest(idempotencyKey, locationId, giftCard, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateGiftCardResponse.java b/src/main/java/com/squareup/square/types/CreateGiftCardResponse.java
index 9e598fc8..53e18e9a 100644
--- a/src/main/java/com/squareup/square/types/CreateGiftCardResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateGiftCardResponse.java
@@ -127,5 +127,15 @@ public Builder giftCard(GiftCard giftCard) {
         public CreateGiftCardResponse build() {
             return new CreateGiftCardResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequest.java b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequest.java
index 9c3d5871..6580040d 100644
--- a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequest.java
@@ -100,6 +100,10 @@ public interface InvoiceIdStage {
     public interface _FinalStage {
         CreateInvoiceAttachmentRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         _FinalStage imageFile(Optional<File> imageFile);
 
         _FinalStage imageFile(File imageFile);
@@ -172,5 +176,17 @@ public _FinalStage imageFile(Optional<File> imageFile) {
         public CreateInvoiceAttachmentRequest build() {
             return new CreateInvoiceAttachmentRequest(imageFile, invoiceId, request, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequestData.java b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequestData.java
index 294cbf60..ea0985dc 100644
--- a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequestData.java
+++ b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentRequestData.java
@@ -129,5 +129,15 @@ public Builder description(String description) {
         public CreateInvoiceAttachmentRequestData build() {
             return new CreateInvoiceAttachmentRequestData(idempotencyKey, description, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentResponse.java b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentResponse.java
index 51434867..78bccc64 100644
--- a/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateInvoiceAttachmentResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public CreateInvoiceAttachmentResponse build() {
             return new CreateInvoiceAttachmentResponse(attachment, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateInvoiceRequest.java b/src/main/java/com/squareup/square/types/CreateInvoiceRequest.java
index a90c998c..51b06357 100644
--- a/src/main/java/com/squareup/square/types/CreateInvoiceRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateInvoiceRequest.java
@@ -94,6 +94,10 @@ public interface InvoiceStage {
     public interface _FinalStage {
         CreateInvoiceRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies the <code>CreateInvoice</code> request. If you do not
          * provide <code>idempotency_key</code> (or provide an empty string as the value), the endpoint
@@ -165,5 +169,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateInvoiceRequest build() {
             return new CreateInvoiceRequest(invoice, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateInvoiceResponse.java b/src/main/java/com/squareup/square/types/CreateInvoiceResponse.java
index e66d1ac1..b7d3ac58 100644
--- a/src/main/java/com/squareup/square/types/CreateInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateInvoiceResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateInvoiceResponse build() {
             return new CreateInvoiceResponse(invoice, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateJobRequest.java b/src/main/java/com/squareup/square/types/CreateJobRequest.java
index 573b899a..d1cce0ef 100644
--- a/src/main/java/com/squareup/square/types/CreateJobRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateJobRequest.java
@@ -98,6 +98,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         CreateJobRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -150,5 +154,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public CreateJobRequest build() {
             return new CreateJobRequest(job, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateJobResponse.java b/src/main/java/com/squareup/square/types/CreateJobResponse.java
index 53e0afdc..69a97b57 100644
--- a/src/main/java/com/squareup/square/types/CreateJobResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateJobResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateJobResponse build() {
             return new CreateJobResponse(job, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLocationCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/CreateLocationCustomAttributeDefinitionResponse.java
index e6c75583..b73ae9e5 100644
--- a/src/main/java/com/squareup/square/types/CreateLocationCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateLocationCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public CreateLocationCustomAttributeDefinitionResponse build() {
             return new CreateLocationCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLocationRequest.java b/src/main/java/com/squareup/square/types/CreateLocationRequest.java
index 6221f53e..c38b8ec7 100644
--- a/src/main/java/com/squareup/square/types/CreateLocationRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateLocationRequest.java
@@ -101,5 +101,15 @@ public Builder location(Location location) {
         public CreateLocationRequest build() {
             return new CreateLocationRequest(location, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLocationResponse.java b/src/main/java/com/squareup/square/types/CreateLocationResponse.java
index 6d34975c..a04098c1 100644
--- a/src/main/java/com/squareup/square/types/CreateLocationResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateLocationResponse.java
@@ -127,5 +127,15 @@ public Builder location(Location location) {
         public CreateLocationResponse build() {
             return new CreateLocationResponse(errors, location, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLoyaltyAccountResponse.java b/src/main/java/com/squareup/square/types/CreateLoyaltyAccountResponse.java
index 774be1dd..1027e94f 100644
--- a/src/main/java/com/squareup/square/types/CreateLoyaltyAccountResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateLoyaltyAccountResponse.java
@@ -129,5 +129,15 @@ public Builder loyaltyAccount(LoyaltyAccount loyaltyAccount) {
         public CreateLoyaltyAccountResponse build() {
             return new CreateLoyaltyAccountResponse(errors, loyaltyAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLoyaltyPromotionResponse.java b/src/main/java/com/squareup/square/types/CreateLoyaltyPromotionResponse.java
index ad283bf4..3bc91a23 100644
--- a/src/main/java/com/squareup/square/types/CreateLoyaltyPromotionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateLoyaltyPromotionResponse.java
@@ -129,5 +129,15 @@ public Builder loyaltyPromotion(LoyaltyPromotion loyaltyPromotion) {
         public CreateLoyaltyPromotionResponse build() {
             return new CreateLoyaltyPromotionResponse(errors, loyaltyPromotion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateLoyaltyRewardResponse.java b/src/main/java/com/squareup/square/types/CreateLoyaltyRewardResponse.java
index f641d94b..da53b040 100644
--- a/src/main/java/com/squareup/square/types/CreateLoyaltyRewardResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateLoyaltyRewardResponse.java
@@ -127,5 +127,15 @@ public Builder reward(LoyaltyReward reward) {
         public CreateLoyaltyRewardResponse build() {
             return new CreateLoyaltyRewardResponse(errors, reward, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateMerchantCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/CreateMerchantCustomAttributeDefinitionResponse.java
index 21cdc347..e380beaa 100644
--- a/src/main/java/com/squareup/square/types/CreateMerchantCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateMerchantCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public CreateMerchantCustomAttributeDefinitionResponse build() {
             return new CreateMerchantCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateOrderCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/CreateOrderCustomAttributeDefinitionResponse.java
index 148e670d..7c9c7072 100644
--- a/src/main/java/com/squareup/square/types/CreateOrderCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateOrderCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public CreateOrderCustomAttributeDefinitionResponse build() {
             return new CreateOrderCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateOrderRequest.java b/src/main/java/com/squareup/square/types/CreateOrderRequest.java
index 1f37f139..c7842df0 100644
--- a/src/main/java/com/squareup/square/types/CreateOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateOrderRequest.java
@@ -138,5 +138,15 @@ public Builder idempotencyKey(String idempotencyKey) {
         public CreateOrderRequest build() {
             return new CreateOrderRequest(order, idempotencyKey, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateOrderResponse.java b/src/main/java/com/squareup/square/types/CreateOrderResponse.java
index d6c1cf06..1542c72b 100644
--- a/src/main/java/com/squareup/square/types/CreateOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateOrderResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateOrderResponse build() {
             return new CreateOrderResponse(order, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreatePaymentLinkResponse.java b/src/main/java/com/squareup/square/types/CreatePaymentLinkResponse.java
index e34a9629..3de0aa0a 100644
--- a/src/main/java/com/squareup/square/types/CreatePaymentLinkResponse.java
+++ b/src/main/java/com/squareup/square/types/CreatePaymentLinkResponse.java
@@ -160,5 +160,15 @@ public Builder relatedResources(PaymentLinkRelatedResources relatedResources) {
         public CreatePaymentLinkResponse build() {
             return new CreatePaymentLinkResponse(errors, paymentLink, relatedResources, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreatePaymentRequest.java b/src/main/java/com/squareup/square/types/CreatePaymentRequest.java
index 5c6df699..75f8ee7d 100644
--- a/src/main/java/com/squareup/square/types/CreatePaymentRequest.java
+++ b/src/main/java/com/squareup/square/types/CreatePaymentRequest.java
@@ -514,6 +514,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         CreatePaymentRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The amount of money to accept for this payment, not including <code>tip_money</code>.</p>
          * <p>The amount must be specified in the smallest denomination of the applicable currency
@@ -1504,5 +1508,17 @@ public CreatePaymentRequest build() {
                     offlinePaymentDetails,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreatePaymentResponse.java b/src/main/java/com/squareup/square/types/CreatePaymentResponse.java
index 2314dfac..01c0bc1e 100644
--- a/src/main/java/com/squareup/square/types/CreatePaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/CreatePaymentResponse.java
@@ -127,5 +127,15 @@ public Builder payment(Payment payment) {
         public CreatePaymentResponse build() {
             return new CreatePaymentResponse(errors, payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateScheduledShiftRequest.java b/src/main/java/com/squareup/square/types/CreateScheduledShiftRequest.java
index 1f199bc9..58b32fa5 100644
--- a/src/main/java/com/squareup/square/types/CreateScheduledShiftRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateScheduledShiftRequest.java
@@ -103,6 +103,10 @@ public interface ScheduledShiftStage {
     public interface _FinalStage {
         CreateScheduledShiftRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique identifier for the <code>CreateScheduledShift</code> request, used to ensure the
          * <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/idempotency">idempotency</a>
@@ -181,5 +185,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateScheduledShiftRequest build() {
             return new CreateScheduledShiftRequest(idempotencyKey, scheduledShift, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateScheduledShiftResponse.java b/src/main/java/com/squareup/square/types/CreateScheduledShiftResponse.java
index 4178e594..d5b301a8 100644
--- a/src/main/java/com/squareup/square/types/CreateScheduledShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateScheduledShiftResponse.java
@@ -133,5 +133,15 @@ public Builder errors(List<Error> errors) {
         public CreateScheduledShiftResponse build() {
             return new CreateScheduledShiftResponse(scheduledShift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateShiftResponse.java b/src/main/java/com/squareup/square/types/CreateShiftResponse.java
index 83e5a427..2800257f 100644
--- a/src/main/java/com/squareup/square/types/CreateShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateShiftResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateShiftResponse build() {
             return new CreateShiftResponse(shift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateSubscriptionRequest.java b/src/main/java/com/squareup/square/types/CreateSubscriptionRequest.java
index edadeb36..5f88c580 100644
--- a/src/main/java/com/squareup/square/types/CreateSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateSubscriptionRequest.java
@@ -277,6 +277,10 @@ public interface CustomerIdStage {
     public interface _FinalStage {
         CreateSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies this <code>CreateSubscription</code> request.
          * If you do not provide a unique string (or provide an empty string as the value),
@@ -725,5 +729,17 @@ public CreateSubscriptionRequest build() {
                     phases,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateSubscriptionResponse.java b/src/main/java/com/squareup/square/types/CreateSubscriptionResponse.java
index f9f8207a..7f434de9 100644
--- a/src/main/java/com/squareup/square/types/CreateSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateSubscriptionResponse.java
@@ -133,5 +133,15 @@ public Builder subscription(Subscription subscription) {
         public CreateSubscriptionResponse build() {
             return new CreateSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTeamMemberRequest.java b/src/main/java/com/squareup/square/types/CreateTeamMemberRequest.java
index 5ee752c4..73570556 100644
--- a/src/main/java/com/squareup/square/types/CreateTeamMemberRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateTeamMemberRequest.java
@@ -136,5 +136,15 @@ public Builder teamMember(TeamMember teamMember) {
         public CreateTeamMemberRequest build() {
             return new CreateTeamMemberRequest(idempotencyKey, teamMember, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTeamMemberResponse.java b/src/main/java/com/squareup/square/types/CreateTeamMemberResponse.java
index 2ff9d510..ebf536cc 100644
--- a/src/main/java/com/squareup/square/types/CreateTeamMemberResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTeamMemberResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateTeamMemberResponse build() {
             return new CreateTeamMemberResponse(teamMember, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTerminalActionResponse.java b/src/main/java/com/squareup/square/types/CreateTerminalActionResponse.java
index 177c15ae..9bf4d82d 100644
--- a/src/main/java/com/squareup/square/types/CreateTerminalActionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTerminalActionResponse.java
@@ -127,5 +127,15 @@ public Builder action(TerminalAction action) {
         public CreateTerminalActionResponse build() {
             return new CreateTerminalActionResponse(errors, action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTerminalCheckoutResponse.java b/src/main/java/com/squareup/square/types/CreateTerminalCheckoutResponse.java
index 722b18fc..999e8fd2 100644
--- a/src/main/java/com/squareup/square/types/CreateTerminalCheckoutResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTerminalCheckoutResponse.java
@@ -129,5 +129,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public CreateTerminalCheckoutResponse build() {
             return new CreateTerminalCheckoutResponse(errors, checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTerminalRefundResponse.java b/src/main/java/com/squareup/square/types/CreateTerminalRefundResponse.java
index cabce65e..d67d0cd2 100644
--- a/src/main/java/com/squareup/square/types/CreateTerminalRefundResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTerminalRefundResponse.java
@@ -127,5 +127,15 @@ public Builder refund(TerminalRefund refund) {
         public CreateTerminalRefundResponse build() {
             return new CreateTerminalRefundResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTimecardRequest.java b/src/main/java/com/squareup/square/types/CreateTimecardRequest.java
index c52e8fa0..f4a3bc6c 100644
--- a/src/main/java/com/squareup/square/types/CreateTimecardRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateTimecardRequest.java
@@ -91,6 +91,10 @@ public interface TimecardStage {
     public interface _FinalStage {
         CreateTimecardRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string value to ensure the idempotency of the operation.</p>
          */
@@ -153,5 +157,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateTimecardRequest build() {
             return new CreateTimecardRequest(idempotencyKey, timecard, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTimecardResponse.java b/src/main/java/com/squareup/square/types/CreateTimecardResponse.java
index 5d4a5128..76f6d316 100644
--- a/src/main/java/com/squareup/square/types/CreateTimecardResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTimecardResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public CreateTimecardResponse build() {
             return new CreateTimecardResponse(timecard, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTransferOrderData.java b/src/main/java/com/squareup/square/types/CreateTransferOrderData.java
index 55cdeca1..26510aac 100644
--- a/src/main/java/com/squareup/square/types/CreateTransferOrderData.java
+++ b/src/main/java/com/squareup/square/types/CreateTransferOrderData.java
@@ -227,6 +227,10 @@ public interface DestinationLocationIdStage {
     public interface _FinalStage {
         CreateTransferOrderData build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Expected transfer date in RFC 3339 format (e.g. &quot;2023-10-01T12:00:00Z&quot;).</p>
          */
@@ -531,5 +535,17 @@ public CreateTransferOrderData build() {
                     lineItems,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTransferOrderLineData.java b/src/main/java/com/squareup/square/types/CreateTransferOrderLineData.java
index ea827c0f..2924a3b1 100644
--- a/src/main/java/com/squareup/square/types/CreateTransferOrderLineData.java
+++ b/src/main/java/com/squareup/square/types/CreateTransferOrderLineData.java
@@ -107,6 +107,10 @@ public interface QuantityOrderedStage {
 
     public interface _FinalStage {
         CreateTransferOrderLineData build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -167,5 +171,17 @@ public _FinalStage quantityOrdered(@NotNull String quantityOrdered) {
         public CreateTransferOrderLineData build() {
             return new CreateTransferOrderLineData(itemVariationId, quantityOrdered, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTransferOrderRequest.java b/src/main/java/com/squareup/square/types/CreateTransferOrderRequest.java
index 0d480d52..47ad9352 100644
--- a/src/main/java/com/squareup/square/types/CreateTransferOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateTransferOrderRequest.java
@@ -97,6 +97,10 @@ public interface TransferOrderStage {
 
     public interface _FinalStage {
         CreateTransferOrderRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -147,5 +151,17 @@ public _FinalStage transferOrder(@NotNull CreateTransferOrderData transferOrder)
         public CreateTransferOrderRequest build() {
             return new CreateTransferOrderRequest(idempotencyKey, transferOrder, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateTransferOrderResponse.java b/src/main/java/com/squareup/square/types/CreateTransferOrderResponse.java
index 3702e395..a3dfa53c 100644
--- a/src/main/java/com/squareup/square/types/CreateTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public CreateTransferOrderResponse build() {
             return new CreateTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateVendorRequest.java b/src/main/java/com/squareup/square/types/CreateVendorRequest.java
index 608465f0..b7ce64b5 100644
--- a/src/main/java/com/squareup/square/types/CreateVendorRequest.java
+++ b/src/main/java/com/squareup/square/types/CreateVendorRequest.java
@@ -97,6 +97,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         CreateVendorRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The requested <a href="entity:Vendor">Vendor</a> to be created.</p>
          */
@@ -165,5 +169,17 @@ public _FinalStage vendor(Optional<Vendor> vendor) {
         public CreateVendorRequest build() {
             return new CreateVendorRequest(idempotencyKey, vendor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateVendorResponse.java b/src/main/java/com/squareup/square/types/CreateVendorResponse.java
index 9a472ea8..dc858e9b 100644
--- a/src/main/java/com/squareup/square/types/CreateVendorResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateVendorResponse.java
@@ -127,5 +127,15 @@ public Builder vendor(Vendor vendor) {
         public CreateVendorResponse build() {
             return new CreateVendorResponse(errors, vendor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CreateWebhookSubscriptionResponse.java b/src/main/java/com/squareup/square/types/CreateWebhookSubscriptionResponse.java
index f92252b5..084d4ee4 100644
--- a/src/main/java/com/squareup/square/types/CreateWebhookSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/CreateWebhookSubscriptionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(WebhookSubscription subscription) {
         public CreateWebhookSubscriptionResponse build() {
             return new CreateWebhookSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttribute.java b/src/main/java/com/squareup/square/types/CustomAttribute.java
index f3974b60..4af282ea 100644
--- a/src/main/java/com/squareup/square/types/CustomAttribute.java
+++ b/src/main/java/com/squareup/square/types/CustomAttribute.java
@@ -364,5 +364,15 @@ public CustomAttribute build() {
             return new CustomAttribute(
                     key, value, version, visibility, definition, updatedAt, createdAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeDefinition.java b/src/main/java/com/squareup/square/types/CustomAttributeDefinition.java
index f7e31a07..f5e22e43 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeDefinition.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeDefinition.java
@@ -455,5 +455,15 @@ public CustomAttributeDefinition build() {
             return new CustomAttributeDefinition(
                     key, schema, name, description, visibility, version, updatedAt, createdAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventData.java b/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventData.java
index 664ec60d..e7621bc3 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventData.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventData.java
@@ -181,5 +181,15 @@ public Builder object(CustomAttributeDefinitionEventDataObject object) {
         public CustomAttributeDefinitionEventData build() {
             return new CustomAttributeDefinitionEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventDataObject.java b/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventDataObject.java
index 177df511..71570620 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventDataObject.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeDefinitionEventDataObject.java
@@ -99,5 +99,15 @@ public Builder customAttributeDefinition(CustomAttributeDefinition customAttribu
         public CustomAttributeDefinitionEventDataObject build() {
             return new CustomAttributeDefinitionEventDataObject(customAttributeDefinition, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeEventData.java b/src/main/java/com/squareup/square/types/CustomAttributeEventData.java
index 758b6133..5d7ecb8c 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeEventData.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeEventData.java
@@ -180,5 +180,15 @@ public Builder object(CustomAttributeEventDataObject object) {
         public CustomAttributeEventData build() {
             return new CustomAttributeEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeEventDataObject.java b/src/main/java/com/squareup/square/types/CustomAttributeEventDataObject.java
index eb05ffe7..259c357e 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeEventDataObject.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeEventDataObject.java
@@ -98,5 +98,15 @@ public Builder customAttribute(CustomAttribute customAttribute) {
         public CustomAttributeEventDataObject build() {
             return new CustomAttributeEventDataObject(customAttribute, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomAttributeFilter.java b/src/main/java/com/squareup/square/types/CustomAttributeFilter.java
index 682df15f..cc9d533e 100644
--- a/src/main/java/com/squareup/square/types/CustomAttributeFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomAttributeFilter.java
@@ -390,5 +390,15 @@ public CustomAttributeFilter build() {
                     boolFilter,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomField.java b/src/main/java/com/squareup/square/types/CustomField.java
index fd3c1a91..d9bacba6 100644
--- a/src/main/java/com/squareup/square/types/CustomField.java
+++ b/src/main/java/com/squareup/square/types/CustomField.java
@@ -76,6 +76,10 @@ public interface TitleStage {
 
     public interface _FinalStage {
         CustomField build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage title(@NotNull String title) {
         public CustomField build() {
             return new CustomField(title, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Customer.java b/src/main/java/com/squareup/square/types/Customer.java
index 7fe90089..f3b78d45 100644
--- a/src/main/java/com/squareup/square/types/Customer.java
+++ b/src/main/java/com/squareup/square/types/Customer.java
@@ -914,5 +914,15 @@ public Customer build() {
                     taxIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerAddressFilter.java b/src/main/java/com/squareup/square/types/CustomerAddressFilter.java
index 073f4b7b..444cccec 100644
--- a/src/main/java/com/squareup/square/types/CustomerAddressFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomerAddressFilter.java
@@ -130,5 +130,15 @@ public Builder country(Country country) {
         public CustomerAddressFilter build() {
             return new CustomerAddressFilter(postalCode, country, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCreatedEvent.java
index bf4e9b48..83c57106 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CustomerCreatedEventData data) {
         public CustomerCreatedEvent build() {
             return new CustomerCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreatedEventData.java b/src/main/java/com/squareup/square/types/CustomerCreatedEventData.java
index aa3fa83e..f647b0c9 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CustomerCreatedEventObject object) {
         public CustomerCreatedEventData build() {
             return new CustomerCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContext.java b/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContext.java
index b6459990..4cc2d01f 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContext.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContext.java
@@ -98,5 +98,15 @@ public Builder merge(CustomerCreatedEventEventContextMerge merge) {
         public CustomerCreatedEventEventContext build() {
             return new CustomerCreatedEventEventContext(merge, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContextMerge.java b/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContextMerge.java
index 6a631205..3a19baf2 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContextMerge.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreatedEventEventContextMerge.java
@@ -173,5 +173,15 @@ public Builder toCustomerId(Nullable<String> toCustomerId) {
         public CustomerCreatedEventEventContextMerge build() {
             return new CustomerCreatedEventEventContextMerge(fromCustomerIds, toCustomerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreatedEventObject.java b/src/main/java/com/squareup/square/types/CustomerCreatedEventObject.java
index 66f40529..1e6b40a1 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreatedEventObject.java
@@ -128,5 +128,15 @@ public Builder eventContext(CustomerCreatedEventEventContext eventContext) {
         public CustomerCreatedEventObject build() {
             return new CustomerCreatedEventObject(customer, eventContext, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCreationSourceFilter.java b/src/main/java/com/squareup/square/types/CustomerCreationSourceFilter.java
index 1eca1d50..36bd9c50 100644
--- a/src/main/java/com/squareup/square/types/CustomerCreationSourceFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomerCreationSourceFilter.java
@@ -160,5 +160,15 @@ public Builder rule(CustomerInclusionExclusion rule) {
         public CustomerCreationSourceFilter build() {
             return new CustomerCreationSourceFilter(values, rule, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedEvent.java
index 48ef7758..3fa556b3 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionCreatedEvent build() {
             return new CustomerCustomAttributeDefinitionCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedPublicEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedPublicEvent.java
index 2648a140..39d0a0ca 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedPublicEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionCreatedPublicEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionCreatedPublicEvent build() {
             return new CustomerCustomAttributeDefinitionCreatedPublicEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedEvent.java
index d0203bed..3adb79c2 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionDeletedEvent build() {
             return new CustomerCustomAttributeDefinitionDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedPublicEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedPublicEvent.java
index e119841a..59ab6d05 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedPublicEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionDeletedPublicEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionDeletedPublicEvent build() {
             return new CustomerCustomAttributeDefinitionDeletedPublicEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedCreatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedCreatedEvent.java
index 992e7ad3..3244350b 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedCreatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionOwnedCreatedEvent build() {
             return new CustomerCustomAttributeDefinitionOwnedCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedDeletedEvent.java
index 689042ba..8c84425c 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionOwnedDeletedEvent build() {
             return new CustomerCustomAttributeDefinitionOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedUpdatedEvent.java
index 9274fb00..ba94c02d 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionOwnedUpdatedEvent build() {
             return new CustomerCustomAttributeDefinitionOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedEvent.java
index 78f5efe3..b77d11f6 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionUpdatedEvent build() {
             return new CustomerCustomAttributeDefinitionUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedPublicEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedPublicEvent.java
index 5ccad633..eaf9ca54 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedPublicEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionUpdatedPublicEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionUpdatedPublicEvent build() {
             return new CustomerCustomAttributeDefinitionUpdatedPublicEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleCreatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleCreatedEvent.java
index e323e97f..c07f7daa 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleCreatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionVisibleCreatedEvent build() {
             return new CustomerCustomAttributeDefinitionVisibleCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleDeletedEvent.java
index 161f9b10..6a218f20 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionVisibleDeletedEvent build() {
             return new CustomerCustomAttributeDefinitionVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleUpdatedEvent.java
index 8751d1ee..94cf304b 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDefinitionVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDefinitionVisibleUpdatedEvent build() {
             return new CustomerCustomAttributeDefinitionVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedEvent.java
index 4d978aa0..ac333de3 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDeletedEvent build() {
             return new CustomerCustomAttributeDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedPublicEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedPublicEvent.java
index 55257805..52bf3d04 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedPublicEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeDeletedPublicEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeDeletedPublicEvent build() {
             return new CustomerCustomAttributeDeletedPublicEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilter.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilter.java
index 0a08feac..f295048d 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilter.java
@@ -112,6 +112,10 @@ public interface KeyStage {
     public interface _FinalStage {
         CustomerCustomAttributeFilter build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A filter that corresponds to the data type of the target custom attribute. For example, provide the <code>phone</code> filter to
          * search based on the value of a <code>PhoneNumber</code>-type custom attribute. The data type is specified by the schema field of the custom attribute definition,
@@ -221,5 +225,17 @@ public _FinalStage filter(Optional<CustomerCustomAttributeFilterValue> filter) {
         public CustomerCustomAttributeFilter build() {
             return new CustomerCustomAttributeFilter(key, filter, updatedAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilterValue.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilterValue.java
index 7a885ea8..17a90df7 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilterValue.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilterValue.java
@@ -397,5 +397,15 @@ public CustomerCustomAttributeFilterValue build() {
             return new CustomerCustomAttributeFilterValue(
                     email, phone, text, selection, date, number, boolean_, address, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilters.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilters.java
index 47e5ec78..54091674 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilters.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeFilters.java
@@ -124,5 +124,15 @@ public Builder filters(Nullable<List<CustomerCustomAttributeFilter>> filters) {
         public CustomerCustomAttributeFilters build() {
             return new CustomerCustomAttributeFilters(filters, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedDeletedEvent.java
index 8e014e9c..d4bfc675 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeOwnedDeletedEvent build() {
             return new CustomerCustomAttributeOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedUpdatedEvent.java
index bac3c61d..07f4b48d 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeOwnedUpdatedEvent build() {
             return new CustomerCustomAttributeOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedEvent.java
index 2dfd604b..ed00cc84 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeUpdatedEvent build() {
             return new CustomerCustomAttributeUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedPublicEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedPublicEvent.java
index 3b13e394..2344175b 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedPublicEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeUpdatedPublicEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeUpdatedPublicEvent build() {
             return new CustomerCustomAttributeUpdatedPublicEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleDeletedEvent.java
index 4cc08c45..96d7f660 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeVisibleDeletedEvent build() {
             return new CustomerCustomAttributeVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleUpdatedEvent.java
index 84ba316f..43ee11ee 100644
--- a/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerCustomAttributeVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public CustomerCustomAttributeVisibleUpdatedEvent build() {
             return new CustomerCustomAttributeVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDeletedEvent.java b/src/main/java/com/squareup/square/types/CustomerDeletedEvent.java
index e039d5b3..0532465b 100644
--- a/src/main/java/com/squareup/square/types/CustomerDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerDeletedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CustomerDeletedEventData data) {
         public CustomerDeletedEvent build() {
             return new CustomerDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDeletedEventData.java b/src/main/java/com/squareup/square/types/CustomerDeletedEventData.java
index 0e5786b9..bfcca326 100644
--- a/src/main/java/com/squareup/square/types/CustomerDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/CustomerDeletedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CustomerDeletedEventObject object) {
         public CustomerDeletedEventData build() {
             return new CustomerDeletedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContext.java b/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContext.java
index 96d05953..1bec033e 100644
--- a/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContext.java
+++ b/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContext.java
@@ -98,5 +98,15 @@ public Builder merge(CustomerDeletedEventEventContextMerge merge) {
         public CustomerDeletedEventEventContext build() {
             return new CustomerDeletedEventEventContext(merge, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContextMerge.java b/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContextMerge.java
index b7d96700..b8efda6f 100644
--- a/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContextMerge.java
+++ b/src/main/java/com/squareup/square/types/CustomerDeletedEventEventContextMerge.java
@@ -173,5 +173,15 @@ public Builder toCustomerId(Nullable<String> toCustomerId) {
         public CustomerDeletedEventEventContextMerge build() {
             return new CustomerDeletedEventEventContextMerge(fromCustomerIds, toCustomerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDeletedEventObject.java b/src/main/java/com/squareup/square/types/CustomerDeletedEventObject.java
index 16b294cc..7c048c92 100644
--- a/src/main/java/com/squareup/square/types/CustomerDeletedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CustomerDeletedEventObject.java
@@ -128,5 +128,15 @@ public Builder eventContext(CustomerDeletedEventEventContext eventContext) {
         public CustomerDeletedEventObject build() {
             return new CustomerDeletedEventObject(customer, eventContext, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerDetails.java b/src/main/java/com/squareup/square/types/CustomerDetails.java
index 81f57e21..e37d68ae 100644
--- a/src/main/java/com/squareup/square/types/CustomerDetails.java
+++ b/src/main/java/com/squareup/square/types/CustomerDetails.java
@@ -173,5 +173,15 @@ public Builder sellerKeyedIn(Nullable<Boolean> sellerKeyedIn) {
         public CustomerDetails build() {
             return new CustomerDetails(customerInitiated, sellerKeyedIn, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerFilter.java b/src/main/java/com/squareup/square/types/CustomerFilter.java
index 3116c19f..f9b16b68 100644
--- a/src/main/java/com/squareup/square/types/CustomerFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomerFilter.java
@@ -494,5 +494,15 @@ public CustomerFilter build() {
                     segmentIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerGroup.java b/src/main/java/com/squareup/square/types/CustomerGroup.java
index 56c3fbf5..be9744a2 100644
--- a/src/main/java/com/squareup/square/types/CustomerGroup.java
+++ b/src/main/java/com/squareup/square/types/CustomerGroup.java
@@ -120,6 +120,10 @@ public interface NameStage {
     public interface _FinalStage {
         CustomerGroup build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique Square-generated ID for the customer group.</p>
          */
@@ -242,5 +246,17 @@ public _FinalStage id(Optional<String> id) {
         public CustomerGroup build() {
             return new CustomerGroup(id, name, createdAt, updatedAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerPreferences.java b/src/main/java/com/squareup/square/types/CustomerPreferences.java
index 9393ce2b..986b3545 100644
--- a/src/main/java/com/squareup/square/types/CustomerPreferences.java
+++ b/src/main/java/com/squareup/square/types/CustomerPreferences.java
@@ -120,5 +120,15 @@ public Builder emailUnsubscribed(Nullable<Boolean> emailUnsubscribed) {
         public CustomerPreferences build() {
             return new CustomerPreferences(emailUnsubscribed, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerQuery.java b/src/main/java/com/squareup/square/types/CustomerQuery.java
index 6e9e3c80..c241b615 100644
--- a/src/main/java/com/squareup/square/types/CustomerQuery.java
+++ b/src/main/java/com/squareup/square/types/CustomerQuery.java
@@ -134,5 +134,15 @@ public Builder sort(CustomerSort sort) {
         public CustomerQuery build() {
             return new CustomerQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerSegment.java b/src/main/java/com/squareup/square/types/CustomerSegment.java
index 8e3d1a4f..4a298c69 100644
--- a/src/main/java/com/squareup/square/types/CustomerSegment.java
+++ b/src/main/java/com/squareup/square/types/CustomerSegment.java
@@ -189,5 +189,15 @@ public Builder updatedAt(String updatedAt) {
         public CustomerSegment build() {
             return new CustomerSegment(id, name, createdAt, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerSort.java b/src/main/java/com/squareup/square/types/CustomerSort.java
index d3958a83..5230dc1e 100644
--- a/src/main/java/com/squareup/square/types/CustomerSort.java
+++ b/src/main/java/com/squareup/square/types/CustomerSort.java
@@ -138,5 +138,15 @@ public Builder order(SortOrder order) {
         public CustomerSort build() {
             return new CustomerSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerTaxIds.java b/src/main/java/com/squareup/square/types/CustomerTaxIds.java
index 0c1cab7e..f1afeffa 100644
--- a/src/main/java/com/squareup/square/types/CustomerTaxIds.java
+++ b/src/main/java/com/squareup/square/types/CustomerTaxIds.java
@@ -120,5 +120,15 @@ public Builder euVat(Nullable<String> euVat) {
         public CustomerTaxIds build() {
             return new CustomerTaxIds(euVat, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerTextFilter.java b/src/main/java/com/squareup/square/types/CustomerTextFilter.java
index b9d71d24..ebe3ffe9 100644
--- a/src/main/java/com/squareup/square/types/CustomerTextFilter.java
+++ b/src/main/java/com/squareup/square/types/CustomerTextFilter.java
@@ -175,5 +175,15 @@ public Builder fuzzy(Nullable<String> fuzzy) {
         public CustomerTextFilter build() {
             return new CustomerTextFilter(exact, fuzzy, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerUpdatedEvent.java b/src/main/java/com/squareup/square/types/CustomerUpdatedEvent.java
index 5ee7d722..cb68a5e4 100644
--- a/src/main/java/com/squareup/square/types/CustomerUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/CustomerUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(CustomerUpdatedEventData data) {
         public CustomerUpdatedEvent build() {
             return new CustomerUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerUpdatedEventData.java b/src/main/java/com/squareup/square/types/CustomerUpdatedEventData.java
index e320c85f..bd3df8aa 100644
--- a/src/main/java/com/squareup/square/types/CustomerUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/CustomerUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(CustomerUpdatedEventObject object) {
         public CustomerUpdatedEventData build() {
             return new CustomerUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/CustomerUpdatedEventObject.java b/src/main/java/com/squareup/square/types/CustomerUpdatedEventObject.java
index a895f161..0f30ddc9 100644
--- a/src/main/java/com/squareup/square/types/CustomerUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/CustomerUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder customer(Customer customer) {
         public CustomerUpdatedEventObject build() {
             return new CustomerUpdatedEventObject(customer, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DataCollectionOptions.java b/src/main/java/com/squareup/square/types/DataCollectionOptions.java
index 5498e6e0..f1a4e418 100644
--- a/src/main/java/com/squareup/square/types/DataCollectionOptions.java
+++ b/src/main/java/com/squareup/square/types/DataCollectionOptions.java
@@ -138,6 +138,10 @@ public interface InputTypeStage {
     public interface _FinalStage {
         DataCollectionOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The buyer’s input text from the data collection screen.</p>
          */
@@ -234,5 +238,17 @@ public _FinalStage collectedData(Optional<CollectedData> collectedData) {
         public DataCollectionOptions build() {
             return new DataCollectionOptions(title, body, inputType, collectedData, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DateRange.java b/src/main/java/com/squareup/square/types/DateRange.java
index 0b582390..baaca021 100644
--- a/src/main/java/com/squareup/square/types/DateRange.java
+++ b/src/main/java/com/squareup/square/types/DateRange.java
@@ -176,5 +176,15 @@ public Builder endDate(Nullable<String> endDate) {
         public DateRange build() {
             return new DateRange(startDate, endDate, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteActionSubscriptionsRequest.java b/src/main/java/com/squareup/square/types/DeleteActionSubscriptionsRequest.java
index d18c249b..b4dd5cb1 100644
--- a/src/main/java/com/squareup/square/types/DeleteActionSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteActionSubscriptionsRequest.java
@@ -95,6 +95,10 @@ public interface ActionIdStage {
 
     public interface _FinalStage {
         DeleteActionSubscriptionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage actionId(@NotNull String actionId) {
         public DeleteActionSubscriptionsRequest build() {
             return new DeleteActionSubscriptionsRequest(subscriptionId, actionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeDefinitionResponse.java
index 22757aa4..6af2277e 100644
--- a/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeDefinitionResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteBookingCustomAttributeDefinitionResponse build() {
             return new DeleteBookingCustomAttributeDefinitionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeResponse.java
index ef336358..ad02c24a 100644
--- a/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteBookingCustomAttributeResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteBookingCustomAttributeResponse build() {
             return new DeleteBookingCustomAttributeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteBreakTypeResponse.java b/src/main/java/com/squareup/square/types/DeleteBreakTypeResponse.java
index cdd768b7..70497611 100644
--- a/src/main/java/com/squareup/square/types/DeleteBreakTypeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteBreakTypeResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteBreakTypeResponse build() {
             return new DeleteBreakTypeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCatalogObjectResponse.java b/src/main/java/com/squareup/square/types/DeleteCatalogObjectResponse.java
index 2f66667d..93bfcf7e 100644
--- a/src/main/java/com/squareup/square/types/DeleteCatalogObjectResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCatalogObjectResponse.java
@@ -168,5 +168,15 @@ public Builder deletedAt(String deletedAt) {
         public DeleteCatalogObjectResponse build() {
             return new DeleteCatalogObjectResponse(errors, deletedObjectIds, deletedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomerCardResponse.java b/src/main/java/com/squareup/square/types/DeleteCustomerCardResponse.java
index 07e393c3..a5bc3a17 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomerCardResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomerCardResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteCustomerCardResponse build() {
             return new DeleteCustomerCardResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeDefinitionResponse.java
index 06c03e91..ad396d0e 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeDefinitionResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteCustomerCustomAttributeDefinitionResponse build() {
             return new DeleteCustomerCustomAttributeDefinitionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeResponse.java
index 92af27a4..8c31d311 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomerCustomAttributeResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteCustomerCustomAttributeResponse build() {
             return new DeleteCustomerCustomAttributeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomerGroupResponse.java b/src/main/java/com/squareup/square/types/DeleteCustomerGroupResponse.java
index 4b2b6bcc..124a4bd7 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomerGroupResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomerGroupResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteCustomerGroupResponse build() {
             return new DeleteCustomerGroupResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomerResponse.java b/src/main/java/com/squareup/square/types/DeleteCustomerResponse.java
index d1f76590..4191830f 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomerResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteCustomerResponse build() {
             return new DeleteCustomerResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteCustomersRequest.java b/src/main/java/com/squareup/square/types/DeleteCustomersRequest.java
index e039a77c..ebe255db 100644
--- a/src/main/java/com/squareup/square/types/DeleteCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteCustomersRequest.java
@@ -104,6 +104,10 @@ public interface CustomerIdStage {
     public interface _FinalStage {
         DeleteCustomersRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the customer profile.</p>
          * <p>As a best practice, you should include this parameter to enable <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/optimistic-concurrency">optimistic concurrency</a> control.  For more information, see <a href="https://developer.squareup.com/docs/customers-api/use-the-api/keep-records#delete-customer-profile">Delete a customer profile</a>.</p>
@@ -188,5 +192,17 @@ public _FinalStage version(Optional<Long> version) {
         public DeleteCustomersRequest build() {
             return new DeleteCustomersRequest(customerId, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteDisputeEvidenceResponse.java b/src/main/java/com/squareup/square/types/DeleteDisputeEvidenceResponse.java
index 84ad596c..d86170d9 100644
--- a/src/main/java/com/squareup/square/types/DeleteDisputeEvidenceResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteDisputeEvidenceResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteDisputeEvidenceResponse build() {
             return new DeleteDisputeEvidenceResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentRequest.java b/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentRequest.java
index c8df8694..c5b57450 100644
--- a/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentRequest.java
@@ -95,6 +95,10 @@ public interface AttachmentIdStage {
 
     public interface _FinalStage {
         DeleteInvoiceAttachmentRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage attachmentId(@NotNull String attachmentId) {
         public DeleteInvoiceAttachmentRequest build() {
             return new DeleteInvoiceAttachmentRequest(invoiceId, attachmentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentResponse.java b/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentResponse.java
index 29066273..beb1ed3c 100644
--- a/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteInvoiceAttachmentResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteInvoiceAttachmentResponse build() {
             return new DeleteInvoiceAttachmentResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteInvoiceResponse.java b/src/main/java/com/squareup/square/types/DeleteInvoiceResponse.java
index 3f4fb092..59b792dc 100644
--- a/src/main/java/com/squareup/square/types/DeleteInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteInvoiceResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteInvoiceResponse build() {
             return new DeleteInvoiceResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteInvoicesRequest.java b/src/main/java/com/squareup/square/types/DeleteInvoicesRequest.java
index 7d2ba449..f1f67578 100644
--- a/src/main/java/com/squareup/square/types/DeleteInvoicesRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteInvoicesRequest.java
@@ -105,6 +105,10 @@ public interface InvoiceIdStage {
     public interface _FinalStage {
         DeleteInvoicesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The version of the <a href="entity:Invoice">invoice</a> to delete.
          * If you do not know the version, you can call <a href="api-endpoint:Invoices-GetInvoice">GetInvoice</a> or
@@ -193,5 +197,17 @@ public _FinalStage version(Optional<Integer> version) {
         public DeleteInvoicesRequest build() {
             return new DeleteInvoicesRequest(invoiceId, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeDefinitionResponse.java
index 992be847..d9ebbacc 100644
--- a/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeDefinitionResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteLocationCustomAttributeDefinitionResponse build() {
             return new DeleteLocationCustomAttributeDefinitionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeResponse.java
index 16015b76..046ef9ce 100644
--- a/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteLocationCustomAttributeResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteLocationCustomAttributeResponse build() {
             return new DeleteLocationCustomAttributeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteLoyaltyRewardResponse.java b/src/main/java/com/squareup/square/types/DeleteLoyaltyRewardResponse.java
index ab8105ac..0f2658c3 100644
--- a/src/main/java/com/squareup/square/types/DeleteLoyaltyRewardResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteLoyaltyRewardResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteLoyaltyRewardResponse build() {
             return new DeleteLoyaltyRewardResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeDefinitionResponse.java
index 3012f12d..772ad680 100644
--- a/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeDefinitionResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteMerchantCustomAttributeDefinitionResponse build() {
             return new DeleteMerchantCustomAttributeDefinitionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeResponse.java
index 2b093516..24b126dd 100644
--- a/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteMerchantCustomAttributeResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteMerchantCustomAttributeResponse build() {
             return new DeleteMerchantCustomAttributeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeDefinitionResponse.java
index d23710d3..8904fe5b 100644
--- a/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeDefinitionResponse.java
@@ -100,5 +100,15 @@ public Builder errors(List<Error> errors) {
         public DeleteOrderCustomAttributeDefinitionResponse build() {
             return new DeleteOrderCustomAttributeDefinitionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeResponse.java
index 5fe65798..f534facd 100644
--- a/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteOrderCustomAttributeResponse.java
@@ -99,5 +99,15 @@ public Builder errors(List<Error> errors) {
         public DeleteOrderCustomAttributeResponse build() {
             return new DeleteOrderCustomAttributeResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeletePaymentLinkResponse.java b/src/main/java/com/squareup/square/types/DeletePaymentLinkResponse.java
index 81f12bf2..3c08d6ae 100644
--- a/src/main/java/com/squareup/square/types/DeletePaymentLinkResponse.java
+++ b/src/main/java/com/squareup/square/types/DeletePaymentLinkResponse.java
@@ -154,5 +154,15 @@ public Builder cancelledOrderId(String cancelledOrderId) {
         public DeletePaymentLinkResponse build() {
             return new DeletePaymentLinkResponse(errors, id, cancelledOrderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteShiftResponse.java b/src/main/java/com/squareup/square/types/DeleteShiftResponse.java
index 6ed75f4d..d9a31de5 100644
--- a/src/main/java/com/squareup/square/types/DeleteShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteShiftResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteShiftResponse build() {
             return new DeleteShiftResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteSnippetResponse.java b/src/main/java/com/squareup/square/types/DeleteSnippetResponse.java
index dd0dd5d3..92c05388 100644
--- a/src/main/java/com/squareup/square/types/DeleteSnippetResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteSnippetResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteSnippetResponse build() {
             return new DeleteSnippetResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteSnippetsRequest.java b/src/main/java/com/squareup/square/types/DeleteSnippetsRequest.java
index 7d6754fa..8ff12ec7 100644
--- a/src/main/java/com/squareup/square/types/DeleteSnippetsRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteSnippetsRequest.java
@@ -76,6 +76,10 @@ public interface SiteIdStage {
 
     public interface _FinalStage {
         DeleteSnippetsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage siteId(@NotNull String siteId) {
         public DeleteSnippetsRequest build() {
             return new DeleteSnippetsRequest(siteId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteSubscriptionActionResponse.java b/src/main/java/com/squareup/square/types/DeleteSubscriptionActionResponse.java
index ca16f270..f3128eef 100644
--- a/src/main/java/com/squareup/square/types/DeleteSubscriptionActionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteSubscriptionActionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(Subscription subscription) {
         public DeleteSubscriptionActionResponse build() {
             return new DeleteSubscriptionActionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteTimecardRequest.java b/src/main/java/com/squareup/square/types/DeleteTimecardRequest.java
index ebe5850a..f2697b95 100644
--- a/src/main/java/com/squareup/square/types/DeleteTimecardRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteTimecardRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         DeleteTimecardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public DeleteTimecardRequest build() {
             return new DeleteTimecardRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteTimecardResponse.java b/src/main/java/com/squareup/square/types/DeleteTimecardResponse.java
index 829cee6c..d0fa216b 100644
--- a/src/main/java/com/squareup/square/types/DeleteTimecardResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteTimecardResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteTimecardResponse build() {
             return new DeleteTimecardResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteTransferOrderResponse.java b/src/main/java/com/squareup/square/types/DeleteTransferOrderResponse.java
index 27d9b9a0..ec1cb55e 100644
--- a/src/main/java/com/squareup/square/types/DeleteTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteTransferOrderResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteTransferOrderResponse build() {
             return new DeleteTransferOrderResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteTransferOrdersRequest.java b/src/main/java/com/squareup/square/types/DeleteTransferOrdersRequest.java
index 1379695b..7ad28517 100644
--- a/src/main/java/com/squareup/square/types/DeleteTransferOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/DeleteTransferOrdersRequest.java
@@ -103,6 +103,10 @@ public interface TransferOrderIdStage {
     public interface _FinalStage {
         DeleteTransferOrdersRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Version for optimistic concurrency</p>
          */
@@ -183,5 +187,17 @@ public _FinalStage version(Optional<Long> version) {
         public DeleteTransferOrdersRequest build() {
             return new DeleteTransferOrdersRequest(transferOrderId, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeleteWebhookSubscriptionResponse.java b/src/main/java/com/squareup/square/types/DeleteWebhookSubscriptionResponse.java
index 01d812dd..bf285501 100644
--- a/src/main/java/com/squareup/square/types/DeleteWebhookSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/DeleteWebhookSubscriptionResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DeleteWebhookSubscriptionResponse build() {
             return new DeleteWebhookSubscriptionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeprecatedGetAdjustmentInventoryRequest.java b/src/main/java/com/squareup/square/types/DeprecatedGetAdjustmentInventoryRequest.java
index 2a37ac52..c8d9ec1b 100644
--- a/src/main/java/com/squareup/square/types/DeprecatedGetAdjustmentInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/DeprecatedGetAdjustmentInventoryRequest.java
@@ -77,6 +77,10 @@ public interface AdjustmentIdStage {
 
     public interface _FinalStage {
         DeprecatedGetAdjustmentInventoryRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage adjustmentId(@NotNull String adjustmentId) {
         public DeprecatedGetAdjustmentInventoryRequest build() {
             return new DeprecatedGetAdjustmentInventoryRequest(adjustmentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeprecatedGetPhysicalCountInventoryRequest.java b/src/main/java/com/squareup/square/types/DeprecatedGetPhysicalCountInventoryRequest.java
index 03bbd12b..3bcce181 100644
--- a/src/main/java/com/squareup/square/types/DeprecatedGetPhysicalCountInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/DeprecatedGetPhysicalCountInventoryRequest.java
@@ -80,6 +80,10 @@ public interface PhysicalCountIdStage {
 
     public interface _FinalStage {
         DeprecatedGetPhysicalCountInventoryRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -115,5 +119,17 @@ public _FinalStage physicalCountId(@NotNull String physicalCountId) {
         public DeprecatedGetPhysicalCountInventoryRequest build() {
             return new DeprecatedGetPhysicalCountInventoryRequest(physicalCountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Destination.java b/src/main/java/com/squareup/square/types/Destination.java
index 76a2d0e4..a634ef98 100644
--- a/src/main/java/com/squareup/square/types/Destination.java
+++ b/src/main/java/com/squareup/square/types/Destination.java
@@ -127,5 +127,15 @@ public Builder id(String id) {
         public Destination build() {
             return new Destination(type, id, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DestinationDetails.java b/src/main/java/com/squareup/square/types/DestinationDetails.java
index a0dda2e2..4a0011fc 100644
--- a/src/main/java/com/squareup/square/types/DestinationDetails.java
+++ b/src/main/java/com/squareup/square/types/DestinationDetails.java
@@ -159,5 +159,15 @@ public Builder externalDetails(DestinationDetailsExternalRefundDetails externalD
         public DestinationDetails build() {
             return new DestinationDetails(cardDetails, cashDetails, externalDetails, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DestinationDetailsCardRefundDetails.java b/src/main/java/com/squareup/square/types/DestinationDetailsCardRefundDetails.java
index a16576bc..67ac1f2b 100644
--- a/src/main/java/com/squareup/square/types/DestinationDetailsCardRefundDetails.java
+++ b/src/main/java/com/squareup/square/types/DestinationDetailsCardRefundDetails.java
@@ -205,5 +205,15 @@ public Builder authResultCode(Nullable<String> authResultCode) {
         public DestinationDetailsCardRefundDetails build() {
             return new DestinationDetailsCardRefundDetails(card, entryMethod, authResultCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DestinationDetailsCashRefundDetails.java b/src/main/java/com/squareup/square/types/DestinationDetailsCashRefundDetails.java
index b46f8017..cb717bc1 100644
--- a/src/main/java/com/squareup/square/types/DestinationDetailsCashRefundDetails.java
+++ b/src/main/java/com/squareup/square/types/DestinationDetailsCashRefundDetails.java
@@ -94,6 +94,10 @@ public interface SellerSuppliedMoneyStage {
     public interface _FinalStage {
         DestinationDetailsCashRefundDetails build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The amount of change due back to the seller.
          * This read-only field is calculated
@@ -163,5 +167,17 @@ public _FinalStage changeBackMoney(Optional<Money> changeBackMoney) {
         public DestinationDetailsCashRefundDetails build() {
             return new DestinationDetailsCashRefundDetails(sellerSuppliedMoney, changeBackMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DestinationDetailsExternalRefundDetails.java b/src/main/java/com/squareup/square/types/DestinationDetailsExternalRefundDetails.java
index 55833062..22ec60fb 100644
--- a/src/main/java/com/squareup/square/types/DestinationDetailsExternalRefundDetails.java
+++ b/src/main/java/com/squareup/square/types/DestinationDetailsExternalRefundDetails.java
@@ -154,6 +154,10 @@ public interface SourceStage {
     public interface _FinalStage {
         DestinationDetailsExternalRefundDetails build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>An ID to associate the refund to its originating source.</p>
          */
@@ -281,5 +285,17 @@ public _FinalStage sourceId(Optional<String> sourceId) {
         public DestinationDetailsExternalRefundDetails build() {
             return new DestinationDetailsExternalRefundDetails(type, source, sourceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Device.java b/src/main/java/com/squareup/square/types/Device.java
index f2949750..42dfc41e 100644
--- a/src/main/java/com/squareup/square/types/Device.java
+++ b/src/main/java/com/squareup/square/types/Device.java
@@ -134,6 +134,10 @@ public interface AttributesStage {
     public interface _FinalStage {
         Device build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A synthetic identifier for the device. The identifier includes a standardized prefix and
          * is otherwise an opaque id generated from key device fields.</p>
@@ -277,5 +281,17 @@ public _FinalStage id(Optional<String> id) {
         public Device build() {
             return new Device(id, attributes, components, status, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceAttributes.java b/src/main/java/com/squareup/square/types/DeviceAttributes.java
index 5f4e116d..b35c6287 100644
--- a/src/main/java/com/squareup/square/types/DeviceAttributes.java
+++ b/src/main/java/com/squareup/square/types/DeviceAttributes.java
@@ -230,6 +230,10 @@ public interface ManufacturerStage {
     public interface _FinalStage {
         DeviceAttributes build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The specific model of the device.</p>
          */
@@ -547,5 +551,17 @@ public DeviceAttributes build() {
                     merchantToken,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCheckoutOptions.java b/src/main/java/com/squareup/square/types/DeviceCheckoutOptions.java
index 78a62c12..f4d666bb 100644
--- a/src/main/java/com/squareup/square/types/DeviceCheckoutOptions.java
+++ b/src/main/java/com/squareup/square/types/DeviceCheckoutOptions.java
@@ -199,6 +199,10 @@ public interface DeviceIdStage {
     public interface _FinalStage {
         DeviceCheckoutOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Instructs the device to skip the receipt screen. Defaults to false.</p>
          */
@@ -480,5 +484,17 @@ public DeviceCheckoutOptions build() {
                     allowAutoCardSurcharge,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCode.java b/src/main/java/com/squareup/square/types/DeviceCode.java
index b466293d..2e24d8fb 100644
--- a/src/main/java/com/squareup/square/types/DeviceCode.java
+++ b/src/main/java/com/squareup/square/types/DeviceCode.java
@@ -244,6 +244,10 @@ public interface ProductTypeStage {
     public interface _FinalStage {
         DeviceCode build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The unique id for this device code.</p>
          */
@@ -627,5 +631,17 @@ public DeviceCode build() {
                     pairedAt,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCodePairedEvent.java b/src/main/java/com/squareup/square/types/DeviceCodePairedEvent.java
index 8cb7d112..e71a9301 100644
--- a/src/main/java/com/squareup/square/types/DeviceCodePairedEvent.java
+++ b/src/main/java/com/squareup/square/types/DeviceCodePairedEvent.java
@@ -333,5 +333,15 @@ public DeviceCodePairedEvent build() {
             return new DeviceCodePairedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCodePairedEventData.java b/src/main/java/com/squareup/square/types/DeviceCodePairedEventData.java
index f5cd3089..ae99534a 100644
--- a/src/main/java/com/squareup/square/types/DeviceCodePairedEventData.java
+++ b/src/main/java/com/squareup/square/types/DeviceCodePairedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DeviceCodePairedEventObject object) {
         public DeviceCodePairedEventData build() {
             return new DeviceCodePairedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCodePairedEventObject.java b/src/main/java/com/squareup/square/types/DeviceCodePairedEventObject.java
index 54c1c039..a2ce54df 100644
--- a/src/main/java/com/squareup/square/types/DeviceCodePairedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DeviceCodePairedEventObject.java
@@ -97,5 +97,15 @@ public Builder deviceCode(DeviceCode deviceCode) {
         public DeviceCodePairedEventObject build() {
             return new DeviceCodePairedEventObject(deviceCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsApplicationDetails.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsApplicationDetails.java
index 6e997cd8..7fe62199 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsApplicationDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsApplicationDetails.java
@@ -236,5 +236,15 @@ public DeviceComponentDetailsApplicationDetails build() {
             return new DeviceComponentDetailsApplicationDetails(
                     applicationType, version, sessionLocation, deviceCodeId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsBatteryDetails.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsBatteryDetails.java
index e633da7f..56396033 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsBatteryDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsBatteryDetails.java
@@ -154,5 +154,15 @@ public Builder externalPower(DeviceComponentDetailsExternalPower externalPower)
         public DeviceComponentDetailsBatteryDetails build() {
             return new DeviceComponentDetailsBatteryDetails(visiblePercent, externalPower, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsCardReaderDetails.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsCardReaderDetails.java
index 2217083e..42f458b5 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsCardReaderDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsCardReaderDetails.java
@@ -99,5 +99,15 @@ public Builder version(String version) {
         public DeviceComponentDetailsCardReaderDetails build() {
             return new DeviceComponentDetailsCardReaderDetails(version, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsEthernetDetails.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsEthernetDetails.java
index 2077f3b3..c66b145e 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsEthernetDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsEthernetDetails.java
@@ -223,5 +223,15 @@ public Builder macAddress(Nullable<String> macAddress) {
         public DeviceComponentDetailsEthernetDetails build() {
             return new DeviceComponentDetailsEthernetDetails(active, ipAddressV4, macAddress, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsMeasurement.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsMeasurement.java
index fdc3595d..00b0ca7d 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsMeasurement.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsMeasurement.java
@@ -120,5 +120,15 @@ public Builder value(Nullable<Integer> value) {
         public DeviceComponentDetailsMeasurement build() {
             return new DeviceComponentDetailsMeasurement(value, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceComponentDetailsWiFiDetails.java b/src/main/java/com/squareup/square/types/DeviceComponentDetailsWiFiDetails.java
index f3a19aa0..1cbf9084 100644
--- a/src/main/java/com/squareup/square/types/DeviceComponentDetailsWiFiDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceComponentDetailsWiFiDetails.java
@@ -356,5 +356,15 @@ public DeviceComponentDetailsWiFiDetails build() {
             return new DeviceComponentDetailsWiFiDetails(
                     active, ssid, ipAddressV4, secureConnection, signalStrength, macAddress, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCreatedEvent.java b/src/main/java/com/squareup/square/types/DeviceCreatedEvent.java
index 67bb35ed..d3d39399 100644
--- a/src/main/java/com/squareup/square/types/DeviceCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/DeviceCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(DeviceCreatedEventData data) {
         public DeviceCreatedEvent build() {
             return new DeviceCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCreatedEventData.java b/src/main/java/com/squareup/square/types/DeviceCreatedEventData.java
index 1488fefe..0c3aac8a 100644
--- a/src/main/java/com/squareup/square/types/DeviceCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/DeviceCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DeviceCreatedEventObject object) {
         public DeviceCreatedEventData build() {
             return new DeviceCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceCreatedEventObject.java b/src/main/java/com/squareup/square/types/DeviceCreatedEventObject.java
index f40c6518..d1b9ad7d 100644
--- a/src/main/java/com/squareup/square/types/DeviceCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DeviceCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder device(Device device) {
         public DeviceCreatedEventObject build() {
             return new DeviceCreatedEventObject(device, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceDetails.java b/src/main/java/com/squareup/square/types/DeviceDetails.java
index 16ca0efd..4df2706d 100644
--- a/src/main/java/com/squareup/square/types/DeviceDetails.java
+++ b/src/main/java/com/squareup/square/types/DeviceDetails.java
@@ -222,5 +222,15 @@ public Builder deviceName(Nullable<String> deviceName) {
         public DeviceDetails build() {
             return new DeviceDetails(deviceId, deviceInstallationId, deviceName, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceMetadata.java b/src/main/java/com/squareup/square/types/DeviceMetadata.java
index f45887b4..7371a43e 100644
--- a/src/main/java/com/squareup/square/types/DeviceMetadata.java
+++ b/src/main/java/com/squareup/square/types/DeviceMetadata.java
@@ -705,5 +705,15 @@ public DeviceMetadata build() {
                     ipAddress,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DeviceStatus.java b/src/main/java/com/squareup/square/types/DeviceStatus.java
index 8447ad2f..11dc8149 100644
--- a/src/main/java/com/squareup/square/types/DeviceStatus.java
+++ b/src/main/java/com/squareup/square/types/DeviceStatus.java
@@ -99,5 +99,15 @@ public Builder category(DeviceStatusCategory category) {
         public DeviceStatus build() {
             return new DeviceStatus(category, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DigitalWalletDetails.java b/src/main/java/com/squareup/square/types/DigitalWalletDetails.java
index 0c8021ed..cfb717cc 100644
--- a/src/main/java/com/squareup/square/types/DigitalWalletDetails.java
+++ b/src/main/java/com/squareup/square/types/DigitalWalletDetails.java
@@ -237,5 +237,15 @@ public Builder errors(List<Error> errors) {
         public DigitalWalletDetails build() {
             return new DigitalWalletDetails(status, brand, cashAppDetails, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisableBankAccountRequest.java b/src/main/java/com/squareup/square/types/DisableBankAccountRequest.java
index e03792f7..ee91abf4 100644
--- a/src/main/java/com/squareup/square/types/DisableBankAccountRequest.java
+++ b/src/main/java/com/squareup/square/types/DisableBankAccountRequest.java
@@ -76,6 +76,10 @@ public interface BankAccountIdStage {
 
     public interface _FinalStage {
         DisableBankAccountRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage bankAccountId(@NotNull String bankAccountId) {
         public DisableBankAccountRequest build() {
             return new DisableBankAccountRequest(bankAccountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisableBankAccountResponse.java b/src/main/java/com/squareup/square/types/DisableBankAccountResponse.java
index 6cb42a19..c9b739bc 100644
--- a/src/main/java/com/squareup/square/types/DisableBankAccountResponse.java
+++ b/src/main/java/com/squareup/square/types/DisableBankAccountResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public DisableBankAccountResponse build() {
             return new DisableBankAccountResponse(bankAccount, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisableCardResponse.java b/src/main/java/com/squareup/square/types/DisableCardResponse.java
index bbe167c1..bd423b92 100644
--- a/src/main/java/com/squareup/square/types/DisableCardResponse.java
+++ b/src/main/java/com/squareup/square/types/DisableCardResponse.java
@@ -127,5 +127,15 @@ public Builder card(Card card) {
         public DisableCardResponse build() {
             return new DisableCardResponse(errors, card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisableCardsRequest.java b/src/main/java/com/squareup/square/types/DisableCardsRequest.java
index d7cbb46b..3de5e08b 100644
--- a/src/main/java/com/squareup/square/types/DisableCardsRequest.java
+++ b/src/main/java/com/squareup/square/types/DisableCardsRequest.java
@@ -76,6 +76,10 @@ public interface CardIdStage {
 
     public interface _FinalStage {
         DisableCardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage cardId(@NotNull String cardId) {
         public DisableCardsRequest build() {
             return new DisableCardsRequest(cardId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisableEventsResponse.java b/src/main/java/com/squareup/square/types/DisableEventsResponse.java
index 3f2de699..86d607ab 100644
--- a/src/main/java/com/squareup/square/types/DisableEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/DisableEventsResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public DisableEventsResponse build() {
             return new DisableEventsResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalActionRequest.java b/src/main/java/com/squareup/square/types/DismissTerminalActionRequest.java
index cb8bedf5..662dc17f 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalActionRequest.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalActionRequest.java
@@ -76,6 +76,10 @@ public interface ActionIdStage {
 
     public interface _FinalStage {
         DismissTerminalActionRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage actionId(@NotNull String actionId) {
         public DismissTerminalActionRequest build() {
             return new DismissTerminalActionRequest(actionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalActionResponse.java b/src/main/java/com/squareup/square/types/DismissTerminalActionResponse.java
index 448991ab..d74c3916 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalActionResponse.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalActionResponse.java
@@ -127,5 +127,15 @@ public Builder action(TerminalAction action) {
         public DismissTerminalActionResponse build() {
             return new DismissTerminalActionResponse(errors, action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalCheckoutRequest.java b/src/main/java/com/squareup/square/types/DismissTerminalCheckoutRequest.java
index 9be28779..3e269ca0 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalCheckoutRequest.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalCheckoutRequest.java
@@ -76,6 +76,10 @@ public interface CheckoutIdStage {
 
     public interface _FinalStage {
         DismissTerminalCheckoutRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage checkoutId(@NotNull String checkoutId) {
         public DismissTerminalCheckoutRequest build() {
             return new DismissTerminalCheckoutRequest(checkoutId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalCheckoutResponse.java b/src/main/java/com/squareup/square/types/DismissTerminalCheckoutResponse.java
index c70e07cd..b8ab4604 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalCheckoutResponse.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalCheckoutResponse.java
@@ -129,5 +129,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public DismissTerminalCheckoutResponse build() {
             return new DismissTerminalCheckoutResponse(errors, checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalRefundRequest.java b/src/main/java/com/squareup/square/types/DismissTerminalRefundRequest.java
index e7daf186..b1477fa8 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalRefundRequest.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalRefundRequest.java
@@ -76,6 +76,10 @@ public interface TerminalRefundIdStage {
 
     public interface _FinalStage {
         DismissTerminalRefundRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage terminalRefundId(@NotNull String terminalRefundId) {
         public DismissTerminalRefundRequest build() {
             return new DismissTerminalRefundRequest(terminalRefundId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DismissTerminalRefundResponse.java b/src/main/java/com/squareup/square/types/DismissTerminalRefundResponse.java
index fac2609f..a597c53e 100644
--- a/src/main/java/com/squareup/square/types/DismissTerminalRefundResponse.java
+++ b/src/main/java/com/squareup/square/types/DismissTerminalRefundResponse.java
@@ -127,5 +127,15 @@ public Builder refund(TerminalRefund refund) {
         public DismissTerminalRefundResponse build() {
             return new DismissTerminalRefundResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Dispute.java b/src/main/java/com/squareup/square/types/Dispute.java
index c8cda9c0..6185943b 100644
--- a/src/main/java/com/squareup/square/types/Dispute.java
+++ b/src/main/java/com/squareup/square/types/Dispute.java
@@ -734,5 +734,15 @@ public Dispute build() {
                     locationId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeCreatedEvent.java b/src/main/java/com/squareup/square/types/DisputeCreatedEvent.java
index ff5bc4fd..d885593b 100644
--- a/src/main/java/com/squareup/square/types/DisputeCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeCreatedEvent.java
@@ -333,5 +333,15 @@ public DisputeCreatedEvent build() {
             return new DisputeCreatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeCreatedEventData.java b/src/main/java/com/squareup/square/types/DisputeCreatedEventData.java
index 1f143817..7a5b5c33 100644
--- a/src/main/java/com/squareup/square/types/DisputeCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeCreatedEventObject object) {
         public DisputeCreatedEventData build() {
             return new DisputeCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeCreatedEventObject.java b/src/main/java/com/squareup/square/types/DisputeCreatedEventObject.java
index 9455183e..a48044be 100644
--- a/src/main/java/com/squareup/square/types/DisputeCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeCreatedEventObject build() {
             return new DisputeCreatedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidence.java b/src/main/java/com/squareup/square/types/DisputeEvidence.java
index 5d26bc7b..acff509a 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidence.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidence.java
@@ -379,5 +379,15 @@ public DisputeEvidence build() {
                     evidenceType,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEvent.java b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEvent.java
index 6c628b27..5945633b 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEvent.java
@@ -333,5 +333,15 @@ public DisputeEvidenceAddedEvent build() {
             return new DisputeEvidenceAddedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventData.java b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventData.java
index bad59f5a..0bb56d12 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeEvidenceAddedEventObject object) {
         public DisputeEvidenceAddedEventData build() {
             return new DisputeEvidenceAddedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventObject.java b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventObject.java
index 30067290..d07180c2 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceAddedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeEvidenceAddedEventObject build() {
             return new DisputeEvidenceAddedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEvent.java b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEvent.java
index 2be0c869..f21cfd63 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEvent.java
@@ -333,5 +333,15 @@ public DisputeEvidenceCreatedEvent build() {
             return new DisputeEvidenceCreatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventData.java b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventData.java
index 1ccc4dfd..cb2c7541 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeEvidenceCreatedEventObject object) {
         public DisputeEvidenceCreatedEventData build() {
             return new DisputeEvidenceCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventObject.java b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventObject.java
index bb2c93df..abf4d651 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeEvidenceCreatedEventObject build() {
             return new DisputeEvidenceCreatedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEvent.java b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEvent.java
index 6af8716d..f2a32da9 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEvent.java
@@ -333,5 +333,15 @@ public DisputeEvidenceDeletedEvent build() {
             return new DisputeEvidenceDeletedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventData.java b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventData.java
index 64fd32e9..a67c1c68 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeEvidenceDeletedEventObject object) {
         public DisputeEvidenceDeletedEventData build() {
             return new DisputeEvidenceDeletedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventObject.java b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventObject.java
index 08b1379f..91cc5d61 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceDeletedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeEvidenceDeletedEventObject build() {
             return new DisputeEvidenceDeletedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceFile.java b/src/main/java/com/squareup/square/types/DisputeEvidenceFile.java
index ff189205..bf1c9f79 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceFile.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceFile.java
@@ -169,5 +169,15 @@ public Builder filetype(Nullable<String> filetype) {
         public DisputeEvidenceFile build() {
             return new DisputeEvidenceFile(filename, filetype, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEvent.java b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEvent.java
index a74333d1..29aa07fd 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEvent.java
@@ -333,5 +333,15 @@ public DisputeEvidenceRemovedEvent build() {
             return new DisputeEvidenceRemovedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventData.java b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventData.java
index 57b30373..a0cd4190 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeEvidenceRemovedEventObject object) {
         public DisputeEvidenceRemovedEventData build() {
             return new DisputeEvidenceRemovedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventObject.java b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventObject.java
index b961588a..de306942 100644
--- a/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeEvidenceRemovedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeEvidenceRemovedEventObject build() {
             return new DisputeEvidenceRemovedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateChangedEvent.java b/src/main/java/com/squareup/square/types/DisputeStateChangedEvent.java
index 87a54eb5..7e46642f 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateChangedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateChangedEvent.java
@@ -333,5 +333,15 @@ public DisputeStateChangedEvent build() {
             return new DisputeStateChangedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateChangedEventData.java b/src/main/java/com/squareup/square/types/DisputeStateChangedEventData.java
index ee0d69fb..44efa994 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateChangedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateChangedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeStateChangedEventObject object) {
         public DisputeStateChangedEventData build() {
             return new DisputeStateChangedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateChangedEventObject.java b/src/main/java/com/squareup/square/types/DisputeStateChangedEventObject.java
index 6d41a016..97672dde 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateChangedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateChangedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeStateChangedEventObject build() {
             return new DisputeStateChangedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEvent.java b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEvent.java
index e223e21d..b8cbb765 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEvent.java
@@ -333,5 +333,15 @@ public DisputeStateUpdatedEvent build() {
             return new DisputeStateUpdatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventData.java b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventData.java
index 32edfce6..a09533b4 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(DisputeStateUpdatedEventObject object) {
         public DisputeStateUpdatedEventData build() {
             return new DisputeStateUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventObject.java b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventObject.java
index 2de0f3e8..911d6e8e 100644
--- a/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/DisputeStateUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder object(Dispute object) {
         public DisputeStateUpdatedEventObject build() {
             return new DisputeStateUpdatedEventObject(object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/DisputedPayment.java b/src/main/java/com/squareup/square/types/DisputedPayment.java
index fdbabfb7..5920230a 100644
--- a/src/main/java/com/squareup/square/types/DisputedPayment.java
+++ b/src/main/java/com/squareup/square/types/DisputedPayment.java
@@ -120,5 +120,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public DisputedPayment build() {
             return new DisputedPayment(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Employee.java b/src/main/java/com/squareup/square/types/Employee.java
index 27e21b2f..3a8959ad 100644
--- a/src/main/java/com/squareup/square/types/Employee.java
+++ b/src/main/java/com/squareup/square/types/Employee.java
@@ -520,5 +520,15 @@ public Employee build() {
                     updatedAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/EmployeeWage.java b/src/main/java/com/squareup/square/types/EmployeeWage.java
index 14afae2e..8c71a14a 100644
--- a/src/main/java/com/squareup/square/types/EmployeeWage.java
+++ b/src/main/java/com/squareup/square/types/EmployeeWage.java
@@ -234,5 +234,15 @@ public Builder hourlyRate(Money hourlyRate) {
         public EmployeeWage build() {
             return new EmployeeWage(id, employeeId, title, hourlyRate, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/EnableEventsResponse.java b/src/main/java/com/squareup/square/types/EnableEventsResponse.java
index df100cea..b371df56 100644
--- a/src/main/java/com/squareup/square/types/EnableEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/EnableEventsResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public EnableEventsResponse build() {
             return new EnableEventsResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Error.java b/src/main/java/com/squareup/square/types/Error.java
index c50a73c1..a2c4f03d 100644
--- a/src/main/java/com/squareup/square/types/Error.java
+++ b/src/main/java/com/squareup/square/types/Error.java
@@ -132,6 +132,10 @@ public interface CodeStage {
     public interface _FinalStage {
         Error build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A human-readable description of the error for debugging purposes.</p>
          */
@@ -246,5 +250,17 @@ public _FinalStage detail(Optional<String> detail) {
         public Error build() {
             return new Error(category, code, detail, field, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Event.java b/src/main/java/com/squareup/square/types/Event.java
index 5f9fd359..3f4f4778 100644
--- a/src/main/java/com/squareup/square/types/Event.java
+++ b/src/main/java/com/squareup/square/types/Event.java
@@ -332,5 +332,15 @@ public Builder data(EventData data) {
         public Event build() {
             return new Event(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/EventData.java b/src/main/java/com/squareup/square/types/EventData.java
index f66be4d8..cb3a1de1 100644
--- a/src/main/java/com/squareup/square/types/EventData.java
+++ b/src/main/java/com/squareup/square/types/EventData.java
@@ -252,5 +252,15 @@ public Builder object(Nullable<Map<String, Object>> object) {
         public EventData build() {
             return new EventData(type, id, deleted, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/EventMetadata.java b/src/main/java/com/squareup/square/types/EventMetadata.java
index 9c10e382..083c4795 100644
--- a/src/main/java/com/squareup/square/types/EventMetadata.java
+++ b/src/main/java/com/squareup/square/types/EventMetadata.java
@@ -169,5 +169,15 @@ public Builder apiVersion(Nullable<String> apiVersion) {
         public EventMetadata build() {
             return new EventMetadata(eventId, apiVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/EventTypeMetadata.java b/src/main/java/com/squareup/square/types/EventTypeMetadata.java
index 3a908b4f..87ab7557 100644
--- a/src/main/java/com/squareup/square/types/EventTypeMetadata.java
+++ b/src/main/java/com/squareup/square/types/EventTypeMetadata.java
@@ -159,5 +159,15 @@ public Builder releaseStatus(String releaseStatus) {
         public EventTypeMetadata build() {
             return new EventTypeMetadata(eventType, apiVersionIntroduced, releaseStatus, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ExternalPaymentDetails.java b/src/main/java/com/squareup/square/types/ExternalPaymentDetails.java
index a1a5678b..b121bc59 100644
--- a/src/main/java/com/squareup/square/types/ExternalPaymentDetails.java
+++ b/src/main/java/com/squareup/square/types/ExternalPaymentDetails.java
@@ -170,6 +170,10 @@ public interface SourceStage {
     public interface _FinalStage {
         ExternalPaymentDetails build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>An ID to associate the payment to its originating source.</p>
          */
@@ -328,5 +332,17 @@ public _FinalStage sourceId(Optional<String> sourceId) {
         public ExternalPaymentDetails build() {
             return new ExternalPaymentDetails(type, source, sourceId, sourceFeeMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FilterValue.java b/src/main/java/com/squareup/square/types/FilterValue.java
index b6d389a2..882b5e95 100644
--- a/src/main/java/com/squareup/square/types/FilterValue.java
+++ b/src/main/java/com/squareup/square/types/FilterValue.java
@@ -223,5 +223,15 @@ public Builder none(Nullable<List<String>> none) {
         public FilterValue build() {
             return new FilterValue(all, any, none, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FloatNumberRange.java b/src/main/java/com/squareup/square/types/FloatNumberRange.java
index 471e1921..c248f0ec 100644
--- a/src/main/java/com/squareup/square/types/FloatNumberRange.java
+++ b/src/main/java/com/squareup/square/types/FloatNumberRange.java
@@ -169,5 +169,15 @@ public Builder endAt(Nullable<String> endAt) {
         public FloatNumberRange build() {
             return new FloatNumberRange(startAt, endAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Fulfillment.java b/src/main/java/com/squareup/square/types/Fulfillment.java
index 363ac4ec..8289a4ea 100644
--- a/src/main/java/com/squareup/square/types/Fulfillment.java
+++ b/src/main/java/com/squareup/square/types/Fulfillment.java
@@ -468,5 +468,15 @@ public Fulfillment build() {
                     deliveryDetails,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentDeliveryDetails.java b/src/main/java/com/squareup/square/types/FulfillmentDeliveryDetails.java
index 78b17bb6..74f13f35 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentDeliveryDetails.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentDeliveryDetails.java
@@ -1206,5 +1206,15 @@ public FulfillmentDeliveryDetails build() {
                     managedDelivery,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentFulfillmentEntry.java b/src/main/java/com/squareup/square/types/FulfillmentFulfillmentEntry.java
index 0ffaa869..da3714ab 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentFulfillmentEntry.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentFulfillmentEntry.java
@@ -166,6 +166,10 @@ public interface QuantityStage {
     public interface _FinalStage {
         FulfillmentFulfillmentEntry build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID that identifies the fulfillment entry only within this order.</p>
          */
@@ -363,5 +367,17 @@ public _FinalStage uid(Optional<String> uid) {
         public FulfillmentFulfillmentEntry build() {
             return new FulfillmentFulfillmentEntry(uid, lineItemUid, quantity, metadata, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentPickupDetails.java b/src/main/java/com/squareup/square/types/FulfillmentPickupDetails.java
index b0e7cb85..8376925a 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentPickupDetails.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentPickupDetails.java
@@ -880,5 +880,15 @@ public FulfillmentPickupDetails build() {
                     curbsidePickupDetails,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentPickupDetailsCurbsidePickupDetails.java b/src/main/java/com/squareup/square/types/FulfillmentPickupDetailsCurbsidePickupDetails.java
index 853e185d..f81b5926 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentPickupDetailsCurbsidePickupDetails.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentPickupDetailsCurbsidePickupDetails.java
@@ -177,5 +177,15 @@ public FulfillmentPickupDetailsCurbsidePickupDetails build() {
             return new FulfillmentPickupDetailsCurbsidePickupDetails(
                     curbsideDetails, buyerArrivedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentRecipient.java b/src/main/java/com/squareup/square/types/FulfillmentRecipient.java
index 69842b6e..394714e3 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentRecipient.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentRecipient.java
@@ -331,5 +331,15 @@ public FulfillmentRecipient build() {
             return new FulfillmentRecipient(
                     customerId, displayName, emailAddress, phoneNumber, address, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/FulfillmentShipmentDetails.java b/src/main/java/com/squareup/square/types/FulfillmentShipmentDetails.java
index a99aea41..3fc7eb2a 100644
--- a/src/main/java/com/squareup/square/types/FulfillmentShipmentDetails.java
+++ b/src/main/java/com/squareup/square/types/FulfillmentShipmentDetails.java
@@ -765,5 +765,15 @@ public FulfillmentShipmentDetails build() {
                     failureReason,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetAdjustmentInventoryRequest.java b/src/main/java/com/squareup/square/types/GetAdjustmentInventoryRequest.java
index 917577c8..d2f1fe8c 100644
--- a/src/main/java/com/squareup/square/types/GetAdjustmentInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/GetAdjustmentInventoryRequest.java
@@ -76,6 +76,10 @@ public interface AdjustmentIdStage {
 
     public interface _FinalStage {
         GetAdjustmentInventoryRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage adjustmentId(@NotNull String adjustmentId) {
         public GetAdjustmentInventoryRequest build() {
             return new GetAdjustmentInventoryRequest(adjustmentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBankAccountByV1IdResponse.java b/src/main/java/com/squareup/square/types/GetBankAccountByV1IdResponse.java
index fff53dc3..05eb2844 100644
--- a/src/main/java/com/squareup/square/types/GetBankAccountByV1IdResponse.java
+++ b/src/main/java/com/squareup/square/types/GetBankAccountByV1IdResponse.java
@@ -127,5 +127,15 @@ public Builder bankAccount(BankAccount bankAccount) {
         public GetBankAccountByV1IdResponse build() {
             return new GetBankAccountByV1IdResponse(errors, bankAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBankAccountResponse.java b/src/main/java/com/squareup/square/types/GetBankAccountResponse.java
index 7440db4a..9c0e67df 100644
--- a/src/main/java/com/squareup/square/types/GetBankAccountResponse.java
+++ b/src/main/java/com/squareup/square/types/GetBankAccountResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetBankAccountResponse build() {
             return new GetBankAccountResponse(bankAccount, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBankAccountsRequest.java b/src/main/java/com/squareup/square/types/GetBankAccountsRequest.java
index 6d4861aa..9a38fe60 100644
--- a/src/main/java/com/squareup/square/types/GetBankAccountsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetBankAccountsRequest.java
@@ -76,6 +76,10 @@ public interface BankAccountIdStage {
 
     public interface _FinalStage {
         GetBankAccountsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage bankAccountId(@NotNull String bankAccountId) {
         public GetBankAccountsRequest build() {
             return new GetBankAccountsRequest(bankAccountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBookingResponse.java b/src/main/java/com/squareup/square/types/GetBookingResponse.java
index 4b42946d..66884868 100644
--- a/src/main/java/com/squareup/square/types/GetBookingResponse.java
+++ b/src/main/java/com/squareup/square/types/GetBookingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetBookingResponse build() {
             return new GetBookingResponse(booking, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBookingsRequest.java b/src/main/java/com/squareup/square/types/GetBookingsRequest.java
index e896d0df..94c8d20d 100644
--- a/src/main/java/com/squareup/square/types/GetBookingsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetBookingsRequest.java
@@ -76,6 +76,10 @@ public interface BookingIdStage {
 
     public interface _FinalStage {
         GetBookingsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage bookingId(@NotNull String bookingId) {
         public GetBookingsRequest build() {
             return new GetBookingsRequest(bookingId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBreakTypeResponse.java b/src/main/java/com/squareup/square/types/GetBreakTypeResponse.java
index 5c1e8d9b..e48a910e 100644
--- a/src/main/java/com/squareup/square/types/GetBreakTypeResponse.java
+++ b/src/main/java/com/squareup/square/types/GetBreakTypeResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetBreakTypeResponse build() {
             return new GetBreakTypeResponse(breakType, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetBusinessBookingProfileResponse.java b/src/main/java/com/squareup/square/types/GetBusinessBookingProfileResponse.java
index 0e4fd227..5e725dad 100644
--- a/src/main/java/com/squareup/square/types/GetBusinessBookingProfileResponse.java
+++ b/src/main/java/com/squareup/square/types/GetBusinessBookingProfileResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public GetBusinessBookingProfileResponse build() {
             return new GetBusinessBookingProfileResponse(businessBookingProfile, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetByV1IdBankAccountsRequest.java b/src/main/java/com/squareup/square/types/GetByV1IdBankAccountsRequest.java
index 2f1b74b0..2ba6a0a7 100644
--- a/src/main/java/com/squareup/square/types/GetByV1IdBankAccountsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetByV1IdBankAccountsRequest.java
@@ -78,6 +78,10 @@ public interface V1BankAccountIdStage {
 
     public interface _FinalStage {
         GetByV1IdBankAccountsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage v1BankAccountId(@NotNull String v1BankAccountId) {
         public GetByV1IdBankAccountsRequest build() {
             return new GetByV1IdBankAccountsRequest(v1BankAccountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCardResponse.java b/src/main/java/com/squareup/square/types/GetCardResponse.java
index eca1e701..cce4c9cf 100644
--- a/src/main/java/com/squareup/square/types/GetCardResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCardResponse.java
@@ -127,5 +127,15 @@ public Builder card(Card card) {
         public GetCardResponse build() {
             return new GetCardResponse(errors, card, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCardsRequest.java b/src/main/java/com/squareup/square/types/GetCardsRequest.java
index 8d775cef..192dc523 100644
--- a/src/main/java/com/squareup/square/types/GetCardsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetCardsRequest.java
@@ -76,6 +76,10 @@ public interface CardIdStage {
 
     public interface _FinalStage {
         GetCardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage cardId(@NotNull String cardId) {
         public GetCardsRequest build() {
             return new GetCardsRequest(cardId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCashDrawerShiftResponse.java b/src/main/java/com/squareup/square/types/GetCashDrawerShiftResponse.java
index 7661779b..df8da84c 100644
--- a/src/main/java/com/squareup/square/types/GetCashDrawerShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCashDrawerShiftResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public GetCashDrawerShiftResponse build() {
             return new GetCashDrawerShiftResponse(cashDrawerShift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCatalogObjectResponse.java b/src/main/java/com/squareup/square/types/GetCatalogObjectResponse.java
index a9bb733c..aece2e5e 100644
--- a/src/main/java/com/squareup/square/types/GetCatalogObjectResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCatalogObjectResponse.java
@@ -160,5 +160,15 @@ public Builder relatedObjects(List<CatalogObject> relatedObjects) {
         public GetCatalogObjectResponse build() {
             return new GetCatalogObjectResponse(errors, object, relatedObjects, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetChannelsRequest.java b/src/main/java/com/squareup/square/types/GetChannelsRequest.java
index a537800e..1e769cfe 100644
--- a/src/main/java/com/squareup/square/types/GetChannelsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetChannelsRequest.java
@@ -76,6 +76,10 @@ public interface ChannelIdStage {
 
     public interface _FinalStage {
         GetChannelsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage channelId(@NotNull String channelId) {
         public GetChannelsRequest build() {
             return new GetChannelsRequest(channelId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeDefinitionResponse.java
index 78b5644d..9306bb3d 100644
--- a/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public GetCustomerCustomAttributeDefinitionResponse build() {
             return new GetCustomerCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeResponse.java
index 9f2a2299..5e875215 100644
--- a/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCustomerCustomAttributeResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public GetCustomerCustomAttributeResponse build() {
             return new GetCustomerCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomerGroupResponse.java b/src/main/java/com/squareup/square/types/GetCustomerGroupResponse.java
index 0cd36117..771e7ab9 100644
--- a/src/main/java/com/squareup/square/types/GetCustomerGroupResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCustomerGroupResponse.java
@@ -127,5 +127,15 @@ public Builder group(CustomerGroup group) {
         public GetCustomerGroupResponse build() {
             return new GetCustomerGroupResponse(errors, group, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomerResponse.java b/src/main/java/com/squareup/square/types/GetCustomerResponse.java
index d9c44055..0de4cf63 100644
--- a/src/main/java/com/squareup/square/types/GetCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCustomerResponse.java
@@ -127,5 +127,15 @@ public Builder customer(Customer customer) {
         public GetCustomerResponse build() {
             return new GetCustomerResponse(errors, customer, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomerSegmentResponse.java b/src/main/java/com/squareup/square/types/GetCustomerSegmentResponse.java
index 5d1db7e7..94acaa9f 100644
--- a/src/main/java/com/squareup/square/types/GetCustomerSegmentResponse.java
+++ b/src/main/java/com/squareup/square/types/GetCustomerSegmentResponse.java
@@ -127,5 +127,15 @@ public Builder segment(CustomerSegment segment) {
         public GetCustomerSegmentResponse build() {
             return new GetCustomerSegmentResponse(errors, segment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetCustomersRequest.java b/src/main/java/com/squareup/square/types/GetCustomersRequest.java
index 00218309..d07f092c 100644
--- a/src/main/java/com/squareup/square/types/GetCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/GetCustomersRequest.java
@@ -76,6 +76,10 @@ public interface CustomerIdStage {
 
     public interface _FinalStage {
         GetCustomersRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage customerId(@NotNull String customerId) {
         public GetCustomersRequest build() {
             return new GetCustomersRequest(customerId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDeviceCodeResponse.java b/src/main/java/com/squareup/square/types/GetDeviceCodeResponse.java
index f9bc02c7..ccb57989 100644
--- a/src/main/java/com/squareup/square/types/GetDeviceCodeResponse.java
+++ b/src/main/java/com/squareup/square/types/GetDeviceCodeResponse.java
@@ -127,5 +127,15 @@ public Builder deviceCode(DeviceCode deviceCode) {
         public GetDeviceCodeResponse build() {
             return new GetDeviceCodeResponse(errors, deviceCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDeviceResponse.java b/src/main/java/com/squareup/square/types/GetDeviceResponse.java
index d288c31b..c6a30d4b 100644
--- a/src/main/java/com/squareup/square/types/GetDeviceResponse.java
+++ b/src/main/java/com/squareup/square/types/GetDeviceResponse.java
@@ -127,5 +127,15 @@ public Builder device(Device device) {
         public GetDeviceResponse build() {
             return new GetDeviceResponse(errors, device, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDevicesRequest.java b/src/main/java/com/squareup/square/types/GetDevicesRequest.java
index 3f8ac879..f3f6efaa 100644
--- a/src/main/java/com/squareup/square/types/GetDevicesRequest.java
+++ b/src/main/java/com/squareup/square/types/GetDevicesRequest.java
@@ -76,6 +76,10 @@ public interface DeviceIdStage {
 
     public interface _FinalStage {
         GetDevicesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage deviceId(@NotNull String deviceId) {
         public GetDevicesRequest build() {
             return new GetDevicesRequest(deviceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDisputeEvidenceResponse.java b/src/main/java/com/squareup/square/types/GetDisputeEvidenceResponse.java
index e37272a1..ad606e42 100644
--- a/src/main/java/com/squareup/square/types/GetDisputeEvidenceResponse.java
+++ b/src/main/java/com/squareup/square/types/GetDisputeEvidenceResponse.java
@@ -129,5 +129,15 @@ public Builder evidence(DisputeEvidence evidence) {
         public GetDisputeEvidenceResponse build() {
             return new GetDisputeEvidenceResponse(errors, evidence, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDisputeResponse.java b/src/main/java/com/squareup/square/types/GetDisputeResponse.java
index 69e3b59b..b7d8e140 100644
--- a/src/main/java/com/squareup/square/types/GetDisputeResponse.java
+++ b/src/main/java/com/squareup/square/types/GetDisputeResponse.java
@@ -127,5 +127,15 @@ public Builder dispute(Dispute dispute) {
         public GetDisputeResponse build() {
             return new GetDisputeResponse(errors, dispute, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetDisputesRequest.java b/src/main/java/com/squareup/square/types/GetDisputesRequest.java
index 9633e8e2..6df6d980 100644
--- a/src/main/java/com/squareup/square/types/GetDisputesRequest.java
+++ b/src/main/java/com/squareup/square/types/GetDisputesRequest.java
@@ -76,6 +76,10 @@ public interface DisputeIdStage {
 
     public interface _FinalStage {
         GetDisputesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage disputeId(@NotNull String disputeId) {
         public GetDisputesRequest build() {
             return new GetDisputesRequest(disputeId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetEmployeeResponse.java b/src/main/java/com/squareup/square/types/GetEmployeeResponse.java
index f5777ca9..5d783921 100644
--- a/src/main/java/com/squareup/square/types/GetEmployeeResponse.java
+++ b/src/main/java/com/squareup/square/types/GetEmployeeResponse.java
@@ -121,5 +121,15 @@ public Builder errors(List<Error> errors) {
         public GetEmployeeResponse build() {
             return new GetEmployeeResponse(employee, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetEmployeeWageResponse.java b/src/main/java/com/squareup/square/types/GetEmployeeWageResponse.java
index a16a2f46..13bd2f6a 100644
--- a/src/main/java/com/squareup/square/types/GetEmployeeWageResponse.java
+++ b/src/main/java/com/squareup/square/types/GetEmployeeWageResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public GetEmployeeWageResponse build() {
             return new GetEmployeeWageResponse(employeeWage, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetEmployeesRequest.java b/src/main/java/com/squareup/square/types/GetEmployeesRequest.java
index f310d875..c5a969a8 100644
--- a/src/main/java/com/squareup/square/types/GetEmployeesRequest.java
+++ b/src/main/java/com/squareup/square/types/GetEmployeesRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetEmployeesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetEmployeesRequest build() {
             return new GetEmployeesRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardFromGanRequest.java b/src/main/java/com/squareup/square/types/GetGiftCardFromGanRequest.java
index 498e56f5..4fdccfbf 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardFromGanRequest.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardFromGanRequest.java
@@ -80,6 +80,10 @@ public interface GanStage {
 
     public interface _FinalStage {
         GetGiftCardFromGanRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -117,5 +121,17 @@ public _FinalStage gan(@NotNull String gan) {
         public GetGiftCardFromGanRequest build() {
             return new GetGiftCardFromGanRequest(gan, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardFromGanResponse.java b/src/main/java/com/squareup/square/types/GetGiftCardFromGanResponse.java
index 7af367bb..fe8b41e6 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardFromGanResponse.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardFromGanResponse.java
@@ -127,5 +127,15 @@ public Builder giftCard(GiftCard giftCard) {
         public GetGiftCardFromGanResponse build() {
             return new GetGiftCardFromGanResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardFromNonceRequest.java b/src/main/java/com/squareup/square/types/GetGiftCardFromNonceRequest.java
index 9ee45b39..57f4b269 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardFromNonceRequest.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardFromNonceRequest.java
@@ -78,6 +78,10 @@ public interface NonceStage {
 
     public interface _FinalStage {
         GetGiftCardFromNonceRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage nonce(@NotNull String nonce) {
         public GetGiftCardFromNonceRequest build() {
             return new GetGiftCardFromNonceRequest(nonce, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardFromNonceResponse.java b/src/main/java/com/squareup/square/types/GetGiftCardFromNonceResponse.java
index 89b76e3d..7872cb2d 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardFromNonceResponse.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardFromNonceResponse.java
@@ -127,5 +127,15 @@ public Builder giftCard(GiftCard giftCard) {
         public GetGiftCardFromNonceResponse build() {
             return new GetGiftCardFromNonceResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardResponse.java b/src/main/java/com/squareup/square/types/GetGiftCardResponse.java
index 8051aef8..70f2731d 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardResponse.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardResponse.java
@@ -127,5 +127,15 @@ public Builder giftCard(GiftCard giftCard) {
         public GetGiftCardResponse build() {
             return new GetGiftCardResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetGiftCardsRequest.java b/src/main/java/com/squareup/square/types/GetGiftCardsRequest.java
index 63a6a6c8..f54165a8 100644
--- a/src/main/java/com/squareup/square/types/GetGiftCardsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetGiftCardsRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         GetGiftCardsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public GetGiftCardsRequest build() {
             return new GetGiftCardsRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryAdjustmentResponse.java b/src/main/java/com/squareup/square/types/GetInventoryAdjustmentResponse.java
index 53335f6e..c6b30bd5 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryAdjustmentResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryAdjustmentResponse.java
@@ -129,5 +129,15 @@ public Builder adjustment(InventoryAdjustment adjustment) {
         public GetInventoryAdjustmentResponse build() {
             return new GetInventoryAdjustmentResponse(errors, adjustment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryChangesResponse.java b/src/main/java/com/squareup/square/types/GetInventoryChangesResponse.java
index 4a4e27d5..a12d945a 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryChangesResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryChangesResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public GetInventoryChangesResponse build() {
             return new GetInventoryChangesResponse(errors, changes, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryCountResponse.java b/src/main/java/com/squareup/square/types/GetInventoryCountResponse.java
index 6a03cace..57c89809 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryCountResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryCountResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public GetInventoryCountResponse build() {
             return new GetInventoryCountResponse(errors, counts, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryPhysicalCountResponse.java b/src/main/java/com/squareup/square/types/GetInventoryPhysicalCountResponse.java
index abd67124..3e3d4e6f 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryPhysicalCountResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryPhysicalCountResponse.java
@@ -129,5 +129,15 @@ public Builder count(InventoryPhysicalCount count) {
         public GetInventoryPhysicalCountResponse build() {
             return new GetInventoryPhysicalCountResponse(errors, count, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryRequest.java b/src/main/java/com/squareup/square/types/GetInventoryRequest.java
index 231278c2..5a1441e3 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryRequest.java
@@ -131,6 +131,10 @@ public interface CatalogObjectIdStage {
     public interface _FinalStage {
         GetInventoryRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <a href="entity:Location">Location</a> IDs to look up as a comma-separated
          * list. An empty list queries all locations.</p>
@@ -271,5 +275,17 @@ public _FinalStage locationIds(Optional<String> locationIds) {
         public GetInventoryRequest build() {
             return new GetInventoryRequest(catalogObjectId, locationIds, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInventoryTransferResponse.java b/src/main/java/com/squareup/square/types/GetInventoryTransferResponse.java
index 61c02c79..9ee3ee97 100644
--- a/src/main/java/com/squareup/square/types/GetInventoryTransferResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInventoryTransferResponse.java
@@ -129,5 +129,15 @@ public Builder transfer(InventoryTransfer transfer) {
         public GetInventoryTransferResponse build() {
             return new GetInventoryTransferResponse(errors, transfer, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInvoiceResponse.java b/src/main/java/com/squareup/square/types/GetInvoiceResponse.java
index ab74c2a2..7b79daff 100644
--- a/src/main/java/com/squareup/square/types/GetInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/GetInvoiceResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetInvoiceResponse build() {
             return new GetInvoiceResponse(invoice, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetInvoicesRequest.java b/src/main/java/com/squareup/square/types/GetInvoicesRequest.java
index 7df13b58..9ff9cc63 100644
--- a/src/main/java/com/squareup/square/types/GetInvoicesRequest.java
+++ b/src/main/java/com/squareup/square/types/GetInvoicesRequest.java
@@ -76,6 +76,10 @@ public interface InvoiceIdStage {
 
     public interface _FinalStage {
         GetInvoicesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage invoiceId(@NotNull String invoiceId) {
         public GetInvoicesRequest build() {
             return new GetInvoicesRequest(invoiceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLocationResponse.java b/src/main/java/com/squareup/square/types/GetLocationResponse.java
index 840efded..e213b5ba 100644
--- a/src/main/java/com/squareup/square/types/GetLocationResponse.java
+++ b/src/main/java/com/squareup/square/types/GetLocationResponse.java
@@ -127,5 +127,15 @@ public Builder location(Location location) {
         public GetLocationResponse build() {
             return new GetLocationResponse(errors, location, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLocationsRequest.java b/src/main/java/com/squareup/square/types/GetLocationsRequest.java
index 923185fc..95645324 100644
--- a/src/main/java/com/squareup/square/types/GetLocationsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetLocationsRequest.java
@@ -78,6 +78,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         GetLocationsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public GetLocationsRequest build() {
             return new GetLocationsRequest(locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLoyaltyAccountResponse.java b/src/main/java/com/squareup/square/types/GetLoyaltyAccountResponse.java
index eb7eee2f..e9919fdd 100644
--- a/src/main/java/com/squareup/square/types/GetLoyaltyAccountResponse.java
+++ b/src/main/java/com/squareup/square/types/GetLoyaltyAccountResponse.java
@@ -129,5 +129,15 @@ public Builder loyaltyAccount(LoyaltyAccount loyaltyAccount) {
         public GetLoyaltyAccountResponse build() {
             return new GetLoyaltyAccountResponse(errors, loyaltyAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLoyaltyProgramResponse.java b/src/main/java/com/squareup/square/types/GetLoyaltyProgramResponse.java
index 807466a2..758098b6 100644
--- a/src/main/java/com/squareup/square/types/GetLoyaltyProgramResponse.java
+++ b/src/main/java/com/squareup/square/types/GetLoyaltyProgramResponse.java
@@ -127,5 +127,15 @@ public Builder program(LoyaltyProgram program) {
         public GetLoyaltyProgramResponse build() {
             return new GetLoyaltyProgramResponse(errors, program, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLoyaltyPromotionResponse.java b/src/main/java/com/squareup/square/types/GetLoyaltyPromotionResponse.java
index 82c0a714..d0ebd73a 100644
--- a/src/main/java/com/squareup/square/types/GetLoyaltyPromotionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetLoyaltyPromotionResponse.java
@@ -129,5 +129,15 @@ public Builder loyaltyPromotion(LoyaltyPromotion loyaltyPromotion) {
         public GetLoyaltyPromotionResponse build() {
             return new GetLoyaltyPromotionResponse(errors, loyaltyPromotion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetLoyaltyRewardResponse.java b/src/main/java/com/squareup/square/types/GetLoyaltyRewardResponse.java
index 5e853b32..3e9d7f10 100644
--- a/src/main/java/com/squareup/square/types/GetLoyaltyRewardResponse.java
+++ b/src/main/java/com/squareup/square/types/GetLoyaltyRewardResponse.java
@@ -127,5 +127,15 @@ public Builder reward(LoyaltyReward reward) {
         public GetLoyaltyRewardResponse build() {
             return new GetLoyaltyRewardResponse(errors, reward, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetMerchantResponse.java b/src/main/java/com/squareup/square/types/GetMerchantResponse.java
index b8a43a40..d3549662 100644
--- a/src/main/java/com/squareup/square/types/GetMerchantResponse.java
+++ b/src/main/java/com/squareup/square/types/GetMerchantResponse.java
@@ -127,5 +127,15 @@ public Builder merchant(Merchant merchant) {
         public GetMerchantResponse build() {
             return new GetMerchantResponse(errors, merchant, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetMerchantsRequest.java b/src/main/java/com/squareup/square/types/GetMerchantsRequest.java
index 5d41c918..757caf72 100644
--- a/src/main/java/com/squareup/square/types/GetMerchantsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetMerchantsRequest.java
@@ -78,6 +78,10 @@ public interface MerchantIdStage {
 
     public interface _FinalStage {
         GetMerchantsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage merchantId(@NotNull String merchantId) {
         public GetMerchantsRequest build() {
             return new GetMerchantsRequest(merchantId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetOrderResponse.java b/src/main/java/com/squareup/square/types/GetOrderResponse.java
index f50b56b7..cef1fdbb 100644
--- a/src/main/java/com/squareup/square/types/GetOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/GetOrderResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetOrderResponse build() {
             return new GetOrderResponse(order, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetOrdersRequest.java b/src/main/java/com/squareup/square/types/GetOrdersRequest.java
index 349012ae..65c47647 100644
--- a/src/main/java/com/squareup/square/types/GetOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/GetOrdersRequest.java
@@ -76,6 +76,10 @@ public interface OrderIdStage {
 
     public interface _FinalStage {
         GetOrdersRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage orderId(@NotNull String orderId) {
         public GetOrdersRequest build() {
             return new GetOrdersRequest(orderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPaymentLinkResponse.java b/src/main/java/com/squareup/square/types/GetPaymentLinkResponse.java
index 44ddaed3..d351a0b1 100644
--- a/src/main/java/com/squareup/square/types/GetPaymentLinkResponse.java
+++ b/src/main/java/com/squareup/square/types/GetPaymentLinkResponse.java
@@ -127,5 +127,15 @@ public Builder paymentLink(PaymentLink paymentLink) {
         public GetPaymentLinkResponse build() {
             return new GetPaymentLinkResponse(errors, paymentLink, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPaymentRefundResponse.java b/src/main/java/com/squareup/square/types/GetPaymentRefundResponse.java
index 9c920d4f..bda0626e 100644
--- a/src/main/java/com/squareup/square/types/GetPaymentRefundResponse.java
+++ b/src/main/java/com/squareup/square/types/GetPaymentRefundResponse.java
@@ -127,5 +127,15 @@ public Builder refund(PaymentRefund refund) {
         public GetPaymentRefundResponse build() {
             return new GetPaymentRefundResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPaymentResponse.java b/src/main/java/com/squareup/square/types/GetPaymentResponse.java
index fe6a6908..ef9a3073 100644
--- a/src/main/java/com/squareup/square/types/GetPaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/GetPaymentResponse.java
@@ -127,5 +127,15 @@ public Builder payment(Payment payment) {
         public GetPaymentResponse build() {
             return new GetPaymentResponse(errors, payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPaymentsRequest.java b/src/main/java/com/squareup/square/types/GetPaymentsRequest.java
index def07ab1..460b5741 100644
--- a/src/main/java/com/squareup/square/types/GetPaymentsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetPaymentsRequest.java
@@ -76,6 +76,10 @@ public interface PaymentIdStage {
 
     public interface _FinalStage {
         GetPaymentsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage paymentId(@NotNull String paymentId) {
         public GetPaymentsRequest build() {
             return new GetPaymentsRequest(paymentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPayoutResponse.java b/src/main/java/com/squareup/square/types/GetPayoutResponse.java
index 51487ced..32a28791 100644
--- a/src/main/java/com/squareup/square/types/GetPayoutResponse.java
+++ b/src/main/java/com/squareup/square/types/GetPayoutResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetPayoutResponse build() {
             return new GetPayoutResponse(payout, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPayoutsRequest.java b/src/main/java/com/squareup/square/types/GetPayoutsRequest.java
index 5bbee1b4..9073c998 100644
--- a/src/main/java/com/squareup/square/types/GetPayoutsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetPayoutsRequest.java
@@ -76,6 +76,10 @@ public interface PayoutIdStage {
 
     public interface _FinalStage {
         GetPayoutsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage payoutId(@NotNull String payoutId) {
         public GetPayoutsRequest build() {
             return new GetPayoutsRequest(payoutId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetPhysicalCountInventoryRequest.java b/src/main/java/com/squareup/square/types/GetPhysicalCountInventoryRequest.java
index 23e49110..4f0bcc54 100644
--- a/src/main/java/com/squareup/square/types/GetPhysicalCountInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/GetPhysicalCountInventoryRequest.java
@@ -78,6 +78,10 @@ public interface PhysicalCountIdStage {
 
     public interface _FinalStage {
         GetPhysicalCountInventoryRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage physicalCountId(@NotNull String physicalCountId) {
         public GetPhysicalCountInventoryRequest build() {
             return new GetPhysicalCountInventoryRequest(physicalCountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetRefundsRequest.java b/src/main/java/com/squareup/square/types/GetRefundsRequest.java
index cc66f049..093d4419 100644
--- a/src/main/java/com/squareup/square/types/GetRefundsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetRefundsRequest.java
@@ -76,6 +76,10 @@ public interface RefundIdStage {
 
     public interface _FinalStage {
         GetRefundsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage refundId(@NotNull String refundId) {
         public GetRefundsRequest build() {
             return new GetRefundsRequest(refundId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetShiftResponse.java b/src/main/java/com/squareup/square/types/GetShiftResponse.java
index 34bb50bc..0d6001da 100644
--- a/src/main/java/com/squareup/square/types/GetShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/GetShiftResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetShiftResponse build() {
             return new GetShiftResponse(shift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetSnippetResponse.java b/src/main/java/com/squareup/square/types/GetSnippetResponse.java
index 672995bf..946794d1 100644
--- a/src/main/java/com/squareup/square/types/GetSnippetResponse.java
+++ b/src/main/java/com/squareup/square/types/GetSnippetResponse.java
@@ -127,5 +127,15 @@ public Builder snippet(Snippet snippet) {
         public GetSnippetResponse build() {
             return new GetSnippetResponse(errors, snippet, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetSnippetsRequest.java b/src/main/java/com/squareup/square/types/GetSnippetsRequest.java
index d5359e4f..65cf057f 100644
--- a/src/main/java/com/squareup/square/types/GetSnippetsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetSnippetsRequest.java
@@ -76,6 +76,10 @@ public interface SiteIdStage {
 
     public interface _FinalStage {
         GetSnippetsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage siteId(@NotNull String siteId) {
         public GetSnippetsRequest build() {
             return new GetSnippetsRequest(siteId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetSubscriptionResponse.java b/src/main/java/com/squareup/square/types/GetSubscriptionResponse.java
index ae89f9f8..914c14c8 100644
--- a/src/main/java/com/squareup/square/types/GetSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetSubscriptionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(Subscription subscription) {
         public GetSubscriptionResponse build() {
             return new GetSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetSubscriptionsRequest.java b/src/main/java/com/squareup/square/types/GetSubscriptionsRequest.java
index 6f14412e..ea84f707 100644
--- a/src/main/java/com/squareup/square/types/GetSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetSubscriptionsRequest.java
@@ -107,6 +107,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         GetSubscriptionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A query parameter to specify related information to be included in the response.</p>
          * <p>The supported query parameter values are:</p>
@@ -203,5 +207,17 @@ public _FinalStage include(Optional<String> include) {
         public GetSubscriptionsRequest build() {
             return new GetSubscriptionsRequest(subscriptionId, include, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTeamMemberBookingProfileResponse.java b/src/main/java/com/squareup/square/types/GetTeamMemberBookingProfileResponse.java
index 1b197093..62b2a6bd 100644
--- a/src/main/java/com/squareup/square/types/GetTeamMemberBookingProfileResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTeamMemberBookingProfileResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public GetTeamMemberBookingProfileResponse build() {
             return new GetTeamMemberBookingProfileResponse(teamMemberBookingProfile, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTeamMemberResponse.java b/src/main/java/com/squareup/square/types/GetTeamMemberResponse.java
index 93c28f0f..d0ea63e8 100644
--- a/src/main/java/com/squareup/square/types/GetTeamMemberResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTeamMemberResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetTeamMemberResponse build() {
             return new GetTeamMemberResponse(teamMember, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTeamMemberWageResponse.java b/src/main/java/com/squareup/square/types/GetTeamMemberWageResponse.java
index 1c5eb4ba..40dfd9a3 100644
--- a/src/main/java/com/squareup/square/types/GetTeamMemberWageResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTeamMemberWageResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public GetTeamMemberWageResponse build() {
             return new GetTeamMemberWageResponse(teamMemberWage, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTeamMembersRequest.java b/src/main/java/com/squareup/square/types/GetTeamMembersRequest.java
index b206b27e..7516fa40 100644
--- a/src/main/java/com/squareup/square/types/GetTeamMembersRequest.java
+++ b/src/main/java/com/squareup/square/types/GetTeamMembersRequest.java
@@ -76,6 +76,10 @@ public interface TeamMemberIdStage {
 
     public interface _FinalStage {
         GetTeamMembersRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage teamMemberId(@NotNull String teamMemberId) {
         public GetTeamMembersRequest build() {
             return new GetTeamMembersRequest(teamMemberId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTerminalActionResponse.java b/src/main/java/com/squareup/square/types/GetTerminalActionResponse.java
index 92a6b778..a642ba9e 100644
--- a/src/main/java/com/squareup/square/types/GetTerminalActionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTerminalActionResponse.java
@@ -127,5 +127,15 @@ public Builder action(TerminalAction action) {
         public GetTerminalActionResponse build() {
             return new GetTerminalActionResponse(errors, action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTerminalCheckoutResponse.java b/src/main/java/com/squareup/square/types/GetTerminalCheckoutResponse.java
index 94d9a72e..23d279ae 100644
--- a/src/main/java/com/squareup/square/types/GetTerminalCheckoutResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTerminalCheckoutResponse.java
@@ -129,5 +129,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public GetTerminalCheckoutResponse build() {
             return new GetTerminalCheckoutResponse(errors, checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTerminalRefundResponse.java b/src/main/java/com/squareup/square/types/GetTerminalRefundResponse.java
index 5aa819bd..69de154e 100644
--- a/src/main/java/com/squareup/square/types/GetTerminalRefundResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTerminalRefundResponse.java
@@ -127,5 +127,15 @@ public Builder refund(TerminalRefund refund) {
         public GetTerminalRefundResponse build() {
             return new GetTerminalRefundResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTransactionResponse.java b/src/main/java/com/squareup/square/types/GetTransactionResponse.java
index 1e2371ef..567159de 100644
--- a/src/main/java/com/squareup/square/types/GetTransactionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetTransactionResponse.java
@@ -127,5 +127,15 @@ public Builder transaction(Transaction transaction) {
         public GetTransactionResponse build() {
             return new GetTransactionResponse(errors, transaction, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTransferInventoryRequest.java b/src/main/java/com/squareup/square/types/GetTransferInventoryRequest.java
index f98c2b02..18d163f5 100644
--- a/src/main/java/com/squareup/square/types/GetTransferInventoryRequest.java
+++ b/src/main/java/com/squareup/square/types/GetTransferInventoryRequest.java
@@ -76,6 +76,10 @@ public interface TransferIdStage {
 
     public interface _FinalStage {
         GetTransferInventoryRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage transferId(@NotNull String transferId) {
         public GetTransferInventoryRequest build() {
             return new GetTransferInventoryRequest(transferId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetTransferOrdersRequest.java b/src/main/java/com/squareup/square/types/GetTransferOrdersRequest.java
index aff67216..d2153c26 100644
--- a/src/main/java/com/squareup/square/types/GetTransferOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/GetTransferOrdersRequest.java
@@ -76,6 +76,10 @@ public interface TransferOrderIdStage {
 
     public interface _FinalStage {
         GetTransferOrdersRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage transferOrderId(@NotNull String transferOrderId) {
         public GetTransferOrdersRequest build() {
             return new GetTransferOrdersRequest(transferOrderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetVendorResponse.java b/src/main/java/com/squareup/square/types/GetVendorResponse.java
index ae75fef8..d8984226 100644
--- a/src/main/java/com/squareup/square/types/GetVendorResponse.java
+++ b/src/main/java/com/squareup/square/types/GetVendorResponse.java
@@ -127,5 +127,15 @@ public Builder vendor(Vendor vendor) {
         public GetVendorResponse build() {
             return new GetVendorResponse(errors, vendor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetVendorsRequest.java b/src/main/java/com/squareup/square/types/GetVendorsRequest.java
index c1dd8cdb..8f658b79 100644
--- a/src/main/java/com/squareup/square/types/GetVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/GetVendorsRequest.java
@@ -76,6 +76,10 @@ public interface VendorIdStage {
 
     public interface _FinalStage {
         GetVendorsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage vendorId(@NotNull String vendorId) {
         public GetVendorsRequest build() {
             return new GetVendorsRequest(vendorId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetWageSettingResponse.java b/src/main/java/com/squareup/square/types/GetWageSettingResponse.java
index 1c1d472a..e06a6d5f 100644
--- a/src/main/java/com/squareup/square/types/GetWageSettingResponse.java
+++ b/src/main/java/com/squareup/square/types/GetWageSettingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public GetWageSettingResponse build() {
             return new GetWageSettingResponse(wageSetting, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GetWebhookSubscriptionResponse.java b/src/main/java/com/squareup/square/types/GetWebhookSubscriptionResponse.java
index 010035e5..a9815c30 100644
--- a/src/main/java/com/squareup/square/types/GetWebhookSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/GetWebhookSubscriptionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(WebhookSubscription subscription) {
         public GetWebhookSubscriptionResponse build() {
             return new GetWebhookSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCard.java b/src/main/java/com/squareup/square/types/GiftCard.java
index 004322de..d04d65eb 100644
--- a/src/main/java/com/squareup/square/types/GiftCard.java
+++ b/src/main/java/com/squareup/square/types/GiftCard.java
@@ -202,6 +202,10 @@ public interface TypeStage {
     public interface _FinalStage {
         GiftCard build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the gift card.</p>
          */
@@ -487,5 +491,17 @@ public GiftCard build() {
             return new GiftCard(
                     id, type, ganSource, state, balanceMoney, gan, createdAt, customerIds, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivity.java b/src/main/java/com/squareup/square/types/GiftCardActivity.java
index f61bcb81..7852265f 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivity.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivity.java
@@ -426,6 +426,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         GiftCardActivity build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the gift card activity.</p>
          */
@@ -1218,5 +1222,17 @@ public GiftCardActivity build() {
                     transferBalanceFromActivityDetails,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityActivate.java b/src/main/java/com/squareup/square/types/GiftCardActivityActivate.java
index 21973d88..dd00721b 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityActivate.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityActivate.java
@@ -335,5 +335,15 @@ public GiftCardActivityActivate build() {
             return new GiftCardActivityActivate(
                     amountMoney, orderId, lineItemUid, referenceId, buyerPaymentInstrumentIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityAdjustDecrement.java b/src/main/java/com/squareup/square/types/GiftCardActivityAdjustDecrement.java
index 4c63d772..cd137f97 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityAdjustDecrement.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityAdjustDecrement.java
@@ -97,6 +97,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityAdjustDecrement build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -147,5 +151,17 @@ public _FinalStage reason(@NotNull GiftCardActivityAdjustDecrementReason reason)
         public GiftCardActivityAdjustDecrement build() {
             return new GiftCardActivityAdjustDecrement(amountMoney, reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityAdjustIncrement.java b/src/main/java/com/squareup/square/types/GiftCardActivityAdjustIncrement.java
index 2ac6f5c6..f9caf51e 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityAdjustIncrement.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityAdjustIncrement.java
@@ -97,6 +97,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityAdjustIncrement build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -147,5 +151,17 @@ public _FinalStage reason(@NotNull GiftCardActivityAdjustIncrementReason reason)
         public GiftCardActivityAdjustIncrement build() {
             return new GiftCardActivityAdjustIncrement(amountMoney, reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityBlock.java b/src/main/java/com/squareup/square/types/GiftCardActivityBlock.java
index 6dd0c933..e76a805e 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityBlock.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityBlock.java
@@ -78,6 +78,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityBlock build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage reason(@NotNull String reason) {
         public GiftCardActivityBlock build() {
             return new GiftCardActivityBlock(reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityClearBalance.java b/src/main/java/com/squareup/square/types/GiftCardActivityClearBalance.java
index a6773a42..b0d2509c 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityClearBalance.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityClearBalance.java
@@ -79,6 +79,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityClearBalance build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -114,5 +118,17 @@ public _FinalStage reason(@NotNull GiftCardActivityClearBalanceReason reason) {
         public GiftCardActivityClearBalance build() {
             return new GiftCardActivityClearBalance(reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEvent.java b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEvent.java
index c665c75c..731264bc 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardActivityCreatedEventData data) {
         public GiftCardActivityCreatedEvent build() {
             return new GiftCardActivityCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventData.java b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventData.java
index 685d1d58..da45b617 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardActivityCreatedEventObject object) {
         public GiftCardActivityCreatedEventData build() {
             return new GiftCardActivityCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventObject.java
index fb26117b..60609d7c 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityCreatedEventObject.java
@@ -99,5 +99,15 @@ public Builder giftCardActivity(GiftCardActivity giftCardActivity) {
         public GiftCardActivityCreatedEventObject build() {
             return new GiftCardActivityCreatedEventObject(giftCardActivity, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityDeactivate.java b/src/main/java/com/squareup/square/types/GiftCardActivityDeactivate.java
index 06355b1e..376c6a52 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityDeactivate.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityDeactivate.java
@@ -79,6 +79,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityDeactivate build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -114,5 +118,17 @@ public _FinalStage reason(@NotNull GiftCardActivityDeactivateReason reason) {
         public GiftCardActivityDeactivate build() {
             return new GiftCardActivityDeactivate(reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityImport.java b/src/main/java/com/squareup/square/types/GiftCardActivityImport.java
index 01510814..12db671f 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityImport.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityImport.java
@@ -76,6 +76,10 @@ public interface AmountMoneyStage {
 
     public interface _FinalStage {
         GiftCardActivityImport build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage amountMoney(@NotNull Money amountMoney) {
         public GiftCardActivityImport build() {
             return new GiftCardActivityImport(amountMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityImportReversal.java b/src/main/java/com/squareup/square/types/GiftCardActivityImportReversal.java
index 80e06ded..5bfb9d7a 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityImportReversal.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityImportReversal.java
@@ -78,6 +78,10 @@ public interface AmountMoneyStage {
 
     public interface _FinalStage {
         GiftCardActivityImportReversal build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage amountMoney(@NotNull Money amountMoney) {
         public GiftCardActivityImportReversal build() {
             return new GiftCardActivityImportReversal(amountMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityLoad.java b/src/main/java/com/squareup/square/types/GiftCardActivityLoad.java
index 9ecea320..5293fadd 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityLoad.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityLoad.java
@@ -335,5 +335,15 @@ public GiftCardActivityLoad build() {
             return new GiftCardActivityLoad(
                     amountMoney, orderId, lineItemUid, referenceId, buyerPaymentInstrumentIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityRedeem.java b/src/main/java/com/squareup/square/types/GiftCardActivityRedeem.java
index 3ae338c1..cedf4bf7 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityRedeem.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityRedeem.java
@@ -143,6 +143,10 @@ public interface AmountMoneyStage {
     public interface _FinalStage {
         GiftCardActivityRedeem build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The ID of the payment that represents the gift card redemption. Square populates this field
          * if the payment was processed by Square.</p>
@@ -310,5 +314,17 @@ public _FinalStage paymentId(Optional<String> paymentId) {
         public GiftCardActivityRedeem build() {
             return new GiftCardActivityRedeem(amountMoney, paymentId, referenceId, status, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityRefund.java b/src/main/java/com/squareup/square/types/GiftCardActivityRefund.java
index a78082d4..8264bcfb 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityRefund.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityRefund.java
@@ -247,5 +247,15 @@ public GiftCardActivityRefund build() {
             return new GiftCardActivityRefund(
                     redeemActivityId, amountMoney, referenceId, paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceFrom.java b/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceFrom.java
index 4c061d12..0b96be18 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceFrom.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceFrom.java
@@ -96,6 +96,10 @@ public interface AmountMoneyStage {
 
     public interface _FinalStage {
         GiftCardActivityTransferBalanceFrom build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -145,5 +149,17 @@ public _FinalStage amountMoney(@NotNull Money amountMoney) {
         public GiftCardActivityTransferBalanceFrom build() {
             return new GiftCardActivityTransferBalanceFrom(transferToGiftCardId, amountMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceTo.java b/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceTo.java
index 7bdaf26a..e56b9603 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceTo.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityTransferBalanceTo.java
@@ -95,6 +95,10 @@ public interface AmountMoneyStage {
 
     public interface _FinalStage {
         GiftCardActivityTransferBalanceTo build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -144,5 +148,17 @@ public _FinalStage amountMoney(@NotNull Money amountMoney) {
         public GiftCardActivityTransferBalanceTo build() {
             return new GiftCardActivityTransferBalanceTo(transferFromGiftCardId, amountMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityUnblock.java b/src/main/java/com/squareup/square/types/GiftCardActivityUnblock.java
index 6d59d9f7..ddf637a2 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityUnblock.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityUnblock.java
@@ -78,6 +78,10 @@ public interface ReasonStage {
 
     public interface _FinalStage {
         GiftCardActivityUnblock build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage reason(@NotNull String reason) {
         public GiftCardActivityUnblock build() {
             return new GiftCardActivityUnblock(reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityUnlinkedActivityRefund.java b/src/main/java/com/squareup/square/types/GiftCardActivityUnlinkedActivityRefund.java
index 9ec24002..e897da1e 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityUnlinkedActivityRefund.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityUnlinkedActivityRefund.java
@@ -120,6 +120,10 @@ public interface AmountMoneyStage {
     public interface _FinalStage {
         GiftCardActivityUnlinkedActivityRefund build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A client-specified ID that associates the gift card activity with an entity in another system.</p>
          */
@@ -231,5 +235,17 @@ public GiftCardActivityUnlinkedActivityRefund build() {
             return new GiftCardActivityUnlinkedActivityRefund(
                     amountMoney, referenceId, paymentId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEvent.java b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEvent.java
index 69e53f16..63579477 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardActivityUpdatedEventData data) {
         public GiftCardActivityUpdatedEvent build() {
             return new GiftCardActivityUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventData.java b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventData.java
index 723c9169..efea6f00 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardActivityUpdatedEventObject object) {
         public GiftCardActivityUpdatedEventData build() {
             return new GiftCardActivityUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventObject.java
index 4a298f9e..77b55ac7 100644
--- a/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardActivityUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder giftCardActivity(GiftCardActivity giftCardActivity) {
         public GiftCardActivityUpdatedEventObject build() {
             return new GiftCardActivityUpdatedEventObject(giftCardActivity, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCreatedEvent.java b/src/main/java/com/squareup/square/types/GiftCardCreatedEvent.java
index 703cefba..d4c4ffb9 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardCreatedEventData data) {
         public GiftCardCreatedEvent build() {
             return new GiftCardCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCreatedEventData.java b/src/main/java/com/squareup/square/types/GiftCardCreatedEventData.java
index e20b767d..ea17af6e 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardCreatedEventObject object) {
         public GiftCardCreatedEventData build() {
             return new GiftCardCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCreatedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardCreatedEventObject.java
index b35cccd3..48b87df8 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder giftCard(GiftCard giftCard) {
         public GiftCardCreatedEventObject build() {
             return new GiftCardCreatedEventObject(giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEvent.java b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEvent.java
index b5f4b062..aba15915 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardCustomerLinkedEventData data) {
         public GiftCardCustomerLinkedEvent build() {
             return new GiftCardCustomerLinkedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventData.java b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventData.java
index 800aae81..83745f4e 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardCustomerLinkedEventObject object) {
         public GiftCardCustomerLinkedEventData build() {
             return new GiftCardCustomerLinkedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventObject.java
index fa21f4db..41fd6713 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerLinkedEventObject.java
@@ -149,5 +149,15 @@ public Builder linkedCustomerId(Nullable<String> linkedCustomerId) {
         public GiftCardCustomerLinkedEventObject build() {
             return new GiftCardCustomerLinkedEventObject(giftCard, linkedCustomerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEvent.java b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEvent.java
index 9d4303aa..e4c52a65 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardCustomerUnlinkedEventData data) {
         public GiftCardCustomerUnlinkedEvent build() {
             return new GiftCardCustomerUnlinkedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventData.java b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventData.java
index fd462777..35f6226a 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardCustomerUnlinkedEventObject object) {
         public GiftCardCustomerUnlinkedEventData build() {
             return new GiftCardCustomerUnlinkedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventObject.java
index 3e0ce972..d9a27ce2 100644
--- a/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardCustomerUnlinkedEventObject.java
@@ -154,5 +154,15 @@ public Builder unlinkedCustomerId(Nullable<String> unlinkedCustomerId) {
         public GiftCardCustomerUnlinkedEventObject build() {
             return new GiftCardCustomerUnlinkedEventObject(giftCard, unlinkedCustomerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardUpdatedEvent.java b/src/main/java/com/squareup/square/types/GiftCardUpdatedEvent.java
index 2f03a637..bf6b3269 100644
--- a/src/main/java/com/squareup/square/types/GiftCardUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/GiftCardUpdatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(GiftCardUpdatedEventData data) {
         public GiftCardUpdatedEvent build() {
             return new GiftCardUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardUpdatedEventData.java b/src/main/java/com/squareup/square/types/GiftCardUpdatedEventData.java
index 93878ff4..6ea43301 100644
--- a/src/main/java/com/squareup/square/types/GiftCardUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/GiftCardUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(GiftCardUpdatedEventObject object) {
         public GiftCardUpdatedEventData build() {
             return new GiftCardUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/GiftCardUpdatedEventObject.java b/src/main/java/com/squareup/square/types/GiftCardUpdatedEventObject.java
index ba75bcbf..daf7b9ab 100644
--- a/src/main/java/com/squareup/square/types/GiftCardUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/GiftCardUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder giftCard(GiftCard giftCard) {
         public GiftCardUpdatedEventObject build() {
             return new GiftCardUpdatedEventObject(giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryAdjustment.java b/src/main/java/com/squareup/square/types/InventoryAdjustment.java
index 3a2b5209..ceebdbc1 100644
--- a/src/main/java/com/squareup/square/types/InventoryAdjustment.java
+++ b/src/main/java/com/squareup/square/types/InventoryAdjustment.java
@@ -897,5 +897,15 @@ public InventoryAdjustment build() {
                     adjustmentGroup,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryAdjustmentGroup.java b/src/main/java/com/squareup/square/types/InventoryAdjustmentGroup.java
index 0dc2837f..d7af1f36 100644
--- a/src/main/java/com/squareup/square/types/InventoryAdjustmentGroup.java
+++ b/src/main/java/com/squareup/square/types/InventoryAdjustmentGroup.java
@@ -203,5 +203,15 @@ public Builder toState(InventoryState toState) {
         public InventoryAdjustmentGroup build() {
             return new InventoryAdjustmentGroup(id, rootAdjustmentId, fromState, toState, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryChange.java b/src/main/java/com/squareup/square/types/InventoryChange.java
index 1cf177c1..dd9f0374 100644
--- a/src/main/java/com/squareup/square/types/InventoryChange.java
+++ b/src/main/java/com/squareup/square/types/InventoryChange.java
@@ -276,5 +276,15 @@ public InventoryChange build() {
                     measurementUnitId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryCount.java b/src/main/java/com/squareup/square/types/InventoryCount.java
index 8329b4de..b542358b 100644
--- a/src/main/java/com/squareup/square/types/InventoryCount.java
+++ b/src/main/java/com/squareup/square/types/InventoryCount.java
@@ -401,5 +401,15 @@ public InventoryCount build() {
                     isEstimated,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEvent.java b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEvent.java
index 7b1a74e5..5786d2b2 100644
--- a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InventoryCountUpdatedEventData data) {
         public InventoryCountUpdatedEvent build() {
             return new InventoryCountUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventData.java b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventData.java
index a88d6e0b..ecd82878 100644
--- a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(InventoryCountUpdatedEventObject object) {
         public InventoryCountUpdatedEventData build() {
             return new InventoryCountUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventObject.java b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventObject.java
index bd646f37..d199ccf8 100644
--- a/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InventoryCountUpdatedEventObject.java
@@ -122,5 +122,15 @@ public Builder inventoryCounts(Nullable<List<InventoryCount>> inventoryCounts) {
         public InventoryCountUpdatedEventObject build() {
             return new InventoryCountUpdatedEventObject(inventoryCounts, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryPhysicalCount.java b/src/main/java/com/squareup/square/types/InventoryPhysicalCount.java
index 62919f41..9901ab68 100644
--- a/src/main/java/com/squareup/square/types/InventoryPhysicalCount.java
+++ b/src/main/java/com/squareup/square/types/InventoryPhysicalCount.java
@@ -649,5 +649,15 @@ public InventoryPhysicalCount build() {
                     createdAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InventoryTransfer.java b/src/main/java/com/squareup/square/types/InventoryTransfer.java
index 3aa1d8a0..9c910ae4 100644
--- a/src/main/java/com/squareup/square/types/InventoryTransfer.java
+++ b/src/main/java/com/squareup/square/types/InventoryTransfer.java
@@ -703,5 +703,15 @@ public InventoryTransfer build() {
                     teamMemberId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Invoice.java b/src/main/java/com/squareup/square/types/Invoice.java
index 1a5e4842..700925cc 100644
--- a/src/main/java/com/squareup/square/types/Invoice.java
+++ b/src/main/java/com/squareup/square/types/Invoice.java
@@ -1216,5 +1216,15 @@ public Invoice build() {
                     creatorTeamMemberId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceAcceptedPaymentMethods.java b/src/main/java/com/squareup/square/types/InvoiceAcceptedPaymentMethods.java
index c84e3c8b..86178e4a 100644
--- a/src/main/java/com/squareup/square/types/InvoiceAcceptedPaymentMethods.java
+++ b/src/main/java/com/squareup/square/types/InvoiceAcceptedPaymentMethods.java
@@ -335,5 +335,15 @@ public InvoiceAcceptedPaymentMethods build() {
             return new InvoiceAcceptedPaymentMethods(
                     card, squareGiftCard, bankAccount, buyNowPayLater, cashAppPay, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceAttachment.java b/src/main/java/com/squareup/square/types/InvoiceAttachment.java
index 0d5fff00..3d0d013b 100644
--- a/src/main/java/com/squareup/square/types/InvoiceAttachment.java
+++ b/src/main/java/com/squareup/square/types/InvoiceAttachment.java
@@ -287,5 +287,15 @@ public InvoiceAttachment build() {
             return new InvoiceAttachment(
                     id, filename, description, filesize, hash, mimeType, uploadedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCanceledEvent.java b/src/main/java/com/squareup/square/types/InvoiceCanceledEvent.java
index 082acd80..1a7b05c7 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCanceledEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCanceledEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoiceCanceledEventData data) {
         public InvoiceCanceledEvent build() {
             return new InvoiceCanceledEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCanceledEventData.java b/src/main/java/com/squareup/square/types/InvoiceCanceledEventData.java
index f20c7e01..519cff88 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCanceledEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCanceledEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoiceCanceledEventObject object) {
         public InvoiceCanceledEventData build() {
             return new InvoiceCanceledEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCanceledEventObject.java b/src/main/java/com/squareup/square/types/InvoiceCanceledEventObject.java
index e1ce8f93..778f8b56 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCanceledEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCanceledEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoiceCanceledEventObject build() {
             return new InvoiceCanceledEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCreatedEvent.java b/src/main/java/com/squareup/square/types/InvoiceCreatedEvent.java
index 68b1e28e..1f140edd 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoiceCreatedEventData data) {
         public InvoiceCreatedEvent build() {
             return new InvoiceCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCreatedEventData.java b/src/main/java/com/squareup/square/types/InvoiceCreatedEventData.java
index 4f6a43d4..59d0cb3a 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoiceCreatedEventObject object) {
         public InvoiceCreatedEventData build() {
             return new InvoiceCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCreatedEventObject.java b/src/main/java/com/squareup/square/types/InvoiceCreatedEventObject.java
index 21f03163..4a9ac6e5 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoiceCreatedEventObject build() {
             return new InvoiceCreatedEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceCustomField.java b/src/main/java/com/squareup/square/types/InvoiceCustomField.java
index e5c2cc52..26d95e63 100644
--- a/src/main/java/com/squareup/square/types/InvoiceCustomField.java
+++ b/src/main/java/com/squareup/square/types/InvoiceCustomField.java
@@ -202,5 +202,15 @@ public Builder placement(InvoiceCustomFieldPlacement placement) {
         public InvoiceCustomField build() {
             return new InvoiceCustomField(label, value, placement, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceDeletedEvent.java b/src/main/java/com/squareup/square/types/InvoiceDeletedEvent.java
index 04a1d37d..72dea151 100644
--- a/src/main/java/com/squareup/square/types/InvoiceDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceDeletedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoiceDeletedEventData data) {
         public InvoiceDeletedEvent build() {
             return new InvoiceDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceDeletedEventData.java b/src/main/java/com/squareup/square/types/InvoiceDeletedEventData.java
index 59ec5c3f..c63b29fe 100644
--- a/src/main/java/com/squareup/square/types/InvoiceDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceDeletedEventData.java
@@ -200,5 +200,15 @@ public Builder deleted(Nullable<Boolean> deleted) {
         public InvoiceDeletedEventData build() {
             return new InvoiceDeletedEventData(type, id, deleted, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceFilter.java b/src/main/java/com/squareup/square/types/InvoiceFilter.java
index c87dff96..bf1d1293 100644
--- a/src/main/java/com/squareup/square/types/InvoiceFilter.java
+++ b/src/main/java/com/squareup/square/types/InvoiceFilter.java
@@ -167,5 +167,15 @@ public Builder customerIds(Nullable<List<String>> customerIds) {
         public InvoiceFilter build() {
             return new InvoiceFilter(locationIds, customerIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEvent.java b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEvent.java
index 053a286d..e367f072 100644
--- a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoicePaymentMadeEventData data) {
         public InvoicePaymentMadeEvent build() {
             return new InvoicePaymentMadeEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventData.java b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventData.java
index 57500cdc..18b385b2 100644
--- a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoicePaymentMadeEventObject object) {
         public InvoicePaymentMadeEventData build() {
             return new InvoicePaymentMadeEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventObject.java b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventObject.java
index a2812576..aebf8497 100644
--- a/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoicePaymentMadeEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoicePaymentMadeEventObject build() {
             return new InvoicePaymentMadeEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePaymentReminder.java b/src/main/java/com/squareup/square/types/InvoicePaymentReminder.java
index e240f7f1..c094c826 100644
--- a/src/main/java/com/squareup/square/types/InvoicePaymentReminder.java
+++ b/src/main/java/com/squareup/square/types/InvoicePaymentReminder.java
@@ -271,5 +271,15 @@ public InvoicePaymentReminder build() {
             return new InvoicePaymentReminder(
                     uid, relativeScheduledDays, message, status, sentAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePaymentRequest.java b/src/main/java/com/squareup/square/types/InvoicePaymentRequest.java
index c996011a..ef68c488 100644
--- a/src/main/java/com/squareup/square/types/InvoicePaymentRequest.java
+++ b/src/main/java/com/squareup/square/types/InvoicePaymentRequest.java
@@ -688,5 +688,15 @@ public InvoicePaymentRequest build() {
                     roundingAdjustmentIncludedMoney,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePublishedEvent.java b/src/main/java/com/squareup/square/types/InvoicePublishedEvent.java
index 31d23007..bed23c38 100644
--- a/src/main/java/com/squareup/square/types/InvoicePublishedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoicePublishedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoicePublishedEventData data) {
         public InvoicePublishedEvent build() {
             return new InvoicePublishedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePublishedEventData.java b/src/main/java/com/squareup/square/types/InvoicePublishedEventData.java
index 0cda5fed..f4f52e86 100644
--- a/src/main/java/com/squareup/square/types/InvoicePublishedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoicePublishedEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoicePublishedEventObject object) {
         public InvoicePublishedEventData build() {
             return new InvoicePublishedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoicePublishedEventObject.java b/src/main/java/com/squareup/square/types/InvoicePublishedEventObject.java
index e7ee430b..c21b3d96 100644
--- a/src/main/java/com/squareup/square/types/InvoicePublishedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoicePublishedEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoicePublishedEventObject build() {
             return new InvoicePublishedEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceQuery.java b/src/main/java/com/squareup/square/types/InvoiceQuery.java
index b82b3dd5..5972ac0a 100644
--- a/src/main/java/com/squareup/square/types/InvoiceQuery.java
+++ b/src/main/java/com/squareup/square/types/InvoiceQuery.java
@@ -92,6 +92,10 @@ public interface FilterStage {
     public interface _FinalStage {
         InvoiceQuery build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Describes the sort order for the search result.</p>
          */
@@ -156,5 +160,17 @@ public _FinalStage sort(Optional<InvoiceSort> sort) {
         public InvoiceQuery build() {
             return new InvoiceQuery(filter, sort, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceRecipient.java b/src/main/java/com/squareup/square/types/InvoiceRecipient.java
index 2d8b3ace..d05a22dd 100644
--- a/src/main/java/com/squareup/square/types/InvoiceRecipient.java
+++ b/src/main/java/com/squareup/square/types/InvoiceRecipient.java
@@ -353,5 +353,15 @@ public InvoiceRecipient build() {
                     taxIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceRecipientTaxIds.java b/src/main/java/com/squareup/square/types/InvoiceRecipientTaxIds.java
index 1d04bffd..5fe78eb1 100644
--- a/src/main/java/com/squareup/square/types/InvoiceRecipientTaxIds.java
+++ b/src/main/java/com/squareup/square/types/InvoiceRecipientTaxIds.java
@@ -97,5 +97,15 @@ public Builder euVat(String euVat) {
         public InvoiceRecipientTaxIds build() {
             return new InvoiceRecipientTaxIds(euVat, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceRefundedEvent.java b/src/main/java/com/squareup/square/types/InvoiceRefundedEvent.java
index b26655f4..f54a6d36 100644
--- a/src/main/java/com/squareup/square/types/InvoiceRefundedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceRefundedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoiceRefundedEventData data) {
         public InvoiceRefundedEvent build() {
             return new InvoiceRefundedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceRefundedEventData.java b/src/main/java/com/squareup/square/types/InvoiceRefundedEventData.java
index 46353853..03f969ee 100644
--- a/src/main/java/com/squareup/square/types/InvoiceRefundedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceRefundedEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoiceRefundedEventObject object) {
         public InvoiceRefundedEventData build() {
             return new InvoiceRefundedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceRefundedEventObject.java b/src/main/java/com/squareup/square/types/InvoiceRefundedEventObject.java
index 658337ba..50ad2888 100644
--- a/src/main/java/com/squareup/square/types/InvoiceRefundedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoiceRefundedEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoiceRefundedEventObject build() {
             return new InvoiceRefundedEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEvent.java b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEvent.java
index 521cd5c3..4a4bf38b 100644
--- a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEvent.java
@@ -283,5 +283,15 @@ public InvoiceScheduledChargeFailedEvent build() {
             return new InvoiceScheduledChargeFailedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventData.java b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventData.java
index 8de765c9..4c0b56a4 100644
--- a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventData.java
@@ -181,5 +181,15 @@ public Builder object(InvoiceScheduledChargeFailedEventObject object) {
         public InvoiceScheduledChargeFailedEventData build() {
             return new InvoiceScheduledChargeFailedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventObject.java b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventObject.java
index 484ba2a4..80ac0437 100644
--- a/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoiceScheduledChargeFailedEventObject.java
@@ -99,5 +99,15 @@ public Builder invoice(Invoice invoice) {
         public InvoiceScheduledChargeFailedEventObject build() {
             return new InvoiceScheduledChargeFailedEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceSort.java b/src/main/java/com/squareup/square/types/InvoiceSort.java
index 0f1ec84f..96ef9a46 100644
--- a/src/main/java/com/squareup/square/types/InvoiceSort.java
+++ b/src/main/java/com/squareup/square/types/InvoiceSort.java
@@ -93,6 +93,10 @@ public interface FieldStage {
     public interface _FinalStage {
         InvoiceSort build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The order to use for sorting the results.
          * See <a href="#type-sortorder">SortOrder</a> for possible values</p>
@@ -160,5 +164,17 @@ public _FinalStage order(Optional<SortOrder> order) {
         public InvoiceSort build() {
             return new InvoiceSort(field, order, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceUpdatedEvent.java b/src/main/java/com/squareup/square/types/InvoiceUpdatedEvent.java
index e291c2b4..47aa4b15 100644
--- a/src/main/java/com/squareup/square/types/InvoiceUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/InvoiceUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(InvoiceUpdatedEventData data) {
         public InvoiceUpdatedEvent build() {
             return new InvoiceUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceUpdatedEventData.java b/src/main/java/com/squareup/square/types/InvoiceUpdatedEventData.java
index bb5e2246..a1f4a999 100644
--- a/src/main/java/com/squareup/square/types/InvoiceUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/InvoiceUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(InvoiceUpdatedEventObject object) {
         public InvoiceUpdatedEventData build() {
             return new InvoiceUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/InvoiceUpdatedEventObject.java b/src/main/java/com/squareup/square/types/InvoiceUpdatedEventObject.java
index 67c95a11..adfcb7de 100644
--- a/src/main/java/com/squareup/square/types/InvoiceUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/InvoiceUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder invoice(Invoice invoice) {
         public InvoiceUpdatedEventObject build() {
             return new InvoiceUpdatedEventObject(invoice, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ItemVariationLocationOverrides.java b/src/main/java/com/squareup/square/types/ItemVariationLocationOverrides.java
index 9dffd6c2..0bdc8f77 100644
--- a/src/main/java/com/squareup/square/types/ItemVariationLocationOverrides.java
+++ b/src/main/java/com/squareup/square/types/ItemVariationLocationOverrides.java
@@ -413,5 +413,15 @@ public ItemVariationLocationOverrides build() {
                     soldOutValidUntil,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Job.java b/src/main/java/com/squareup/square/types/Job.java
index e498e2d6..2c0cc1e7 100644
--- a/src/main/java/com/squareup/square/types/Job.java
+++ b/src/main/java/com/squareup/square/types/Job.java
@@ -302,5 +302,15 @@ public Builder version(Integer version) {
         public Job build() {
             return new Job(id, title, isTipEligible, createdAt, updatedAt, version, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobAssignment.java b/src/main/java/com/squareup/square/types/JobAssignment.java
index a6d55e06..67324ace 100644
--- a/src/main/java/com/squareup/square/types/JobAssignment.java
+++ b/src/main/java/com/squareup/square/types/JobAssignment.java
@@ -182,6 +182,10 @@ public interface PayTypeStage {
     public interface _FinalStage {
         JobAssignment build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The title of the job.</p>
          */
@@ -426,5 +430,17 @@ public JobAssignment build() {
             return new JobAssignment(
                     jobTitle, payType, hourlyRate, annualRate, weeklyHours, jobId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobCreatedEvent.java b/src/main/java/com/squareup/square/types/JobCreatedEvent.java
index f9cb1184..9c9691ce 100644
--- a/src/main/java/com/squareup/square/types/JobCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/JobCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(JobCreatedEventData data) {
         public JobCreatedEvent build() {
             return new JobCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobCreatedEventData.java b/src/main/java/com/squareup/square/types/JobCreatedEventData.java
index ca8f9b86..0550d548 100644
--- a/src/main/java/com/squareup/square/types/JobCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/JobCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(JobCreatedEventObject object) {
         public JobCreatedEventData build() {
             return new JobCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobCreatedEventObject.java b/src/main/java/com/squareup/square/types/JobCreatedEventObject.java
index afcd2db0..de9e75e8 100644
--- a/src/main/java/com/squareup/square/types/JobCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/JobCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder job(Job job) {
         public JobCreatedEventObject build() {
             return new JobCreatedEventObject(job, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobUpdatedEvent.java b/src/main/java/com/squareup/square/types/JobUpdatedEvent.java
index 819ed24f..0ed7a702 100644
--- a/src/main/java/com/squareup/square/types/JobUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/JobUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(JobUpdatedEventData data) {
         public JobUpdatedEvent build() {
             return new JobUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobUpdatedEventData.java b/src/main/java/com/squareup/square/types/JobUpdatedEventData.java
index 4f86d7fa..9adcb629 100644
--- a/src/main/java/com/squareup/square/types/JobUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/JobUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(JobUpdatedEventObject object) {
         public JobUpdatedEventData build() {
             return new JobUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/JobUpdatedEventObject.java b/src/main/java/com/squareup/square/types/JobUpdatedEventObject.java
index 90d389c8..4d615aff 100644
--- a/src/main/java/com/squareup/square/types/JobUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/JobUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder job(Job job) {
         public JobUpdatedEventObject build() {
             return new JobUpdatedEventObject(job, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEvent.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEvent.java
index 0193507a..374882c8 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEvent.java
@@ -333,5 +333,15 @@ public LaborScheduledShiftCreatedEvent build() {
             return new LaborScheduledShiftCreatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventData.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventData.java
index 767494d4..ba0a78da 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventData.java
@@ -181,5 +181,15 @@ public Builder object(LaborScheduledShiftCreatedEventObject object) {
         public LaborScheduledShiftCreatedEventData build() {
             return new LaborScheduledShiftCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventObject.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventObject.java
index 1b2b8e62..150d780f 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftCreatedEventObject.java
@@ -99,5 +99,15 @@ public Builder scheduledShift(ScheduledShift scheduledShift) {
         public LaborScheduledShiftCreatedEventObject build() {
             return new LaborScheduledShiftCreatedEventObject(scheduledShift, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEvent.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEvent.java
index 2470364f..2867f874 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEvent.java
@@ -333,5 +333,15 @@ public LaborScheduledShiftDeletedEvent build() {
             return new LaborScheduledShiftDeletedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEventData.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEventData.java
index c904a3df..9929e950 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftDeletedEventData.java
@@ -201,5 +201,15 @@ public Builder deleted(Nullable<Boolean> deleted) {
         public LaborScheduledShiftDeletedEventData build() {
             return new LaborScheduledShiftDeletedEventData(type, id, deleted, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEvent.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEvent.java
index 0a3212f8..2479a33f 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEvent.java
@@ -333,5 +333,15 @@ public LaborScheduledShiftPublishedEvent build() {
             return new LaborScheduledShiftPublishedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventData.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventData.java
index 9083f5df..6f0ecef3 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventData.java
@@ -181,5 +181,15 @@ public Builder object(LaborScheduledShiftPublishedEventObject object) {
         public LaborScheduledShiftPublishedEventData build() {
             return new LaborScheduledShiftPublishedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventObject.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventObject.java
index fba5254e..bdf56bc8 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftPublishedEventObject.java
@@ -99,5 +99,15 @@ public Builder scheduledShift(ScheduledShift scheduledShift) {
         public LaborScheduledShiftPublishedEventObject build() {
             return new LaborScheduledShiftPublishedEventObject(scheduledShift, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEvent.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEvent.java
index 0a920dd1..8d8a9562 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEvent.java
@@ -333,5 +333,15 @@ public LaborScheduledShiftUpdatedEvent build() {
             return new LaborScheduledShiftUpdatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventData.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventData.java
index f737f58f..6dff0bf4 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventData.java
@@ -181,5 +181,15 @@ public Builder object(LaborScheduledShiftUpdatedEventObject object) {
         public LaborScheduledShiftUpdatedEventData build() {
             return new LaborScheduledShiftUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventObject.java
index 74c90c2f..cc2e8463 100644
--- a/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborScheduledShiftUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder scheduledShift(ScheduledShift scheduledShift) {
         public LaborScheduledShiftUpdatedEventObject build() {
             return new LaborScheduledShiftUpdatedEventObject(scheduledShift, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftCreatedEvent.java b/src/main/java/com/squareup/square/types/LaborShiftCreatedEvent.java
index 0f5a3026..2ff9f6d1 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborShiftCreatedEventData data) {
         public LaborShiftCreatedEvent build() {
             return new LaborShiftCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftCreatedEventData.java b/src/main/java/com/squareup/square/types/LaborShiftCreatedEventData.java
index 80455f55..3c51f8f1 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LaborShiftCreatedEventObject object) {
         public LaborShiftCreatedEventData build() {
             return new LaborShiftCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftCreatedEventObject.java b/src/main/java/com/squareup/square/types/LaborShiftCreatedEventObject.java
index 7cc926a2..c8826412 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder shift(Shift shift) {
         public LaborShiftCreatedEventObject build() {
             return new LaborShiftCreatedEventObject(shift, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftDeletedEvent.java b/src/main/java/com/squareup/square/types/LaborShiftDeletedEvent.java
index aca9ccfb..932ac746 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftDeletedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborShiftDeletedEventData data) {
         public LaborShiftDeletedEvent build() {
             return new LaborShiftDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftDeletedEventData.java b/src/main/java/com/squareup/square/types/LaborShiftDeletedEventData.java
index e57dfc4b..2a6403ac 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftDeletedEventData.java
@@ -200,5 +200,15 @@ public Builder deleted(Nullable<Boolean> deleted) {
         public LaborShiftDeletedEventData build() {
             return new LaborShiftDeletedEventData(type, id, deleted, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEvent.java b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEvent.java
index 111e1d33..bbe8f8be 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborShiftUpdatedEventData data) {
         public LaborShiftUpdatedEvent build() {
             return new LaborShiftUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventData.java b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventData.java
index bd36d227..ad04542a 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LaborShiftUpdatedEventObject object) {
         public LaborShiftUpdatedEventData build() {
             return new LaborShiftUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventObject.java
index 4e177629..45296346 100644
--- a/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborShiftUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder shift(Shift shift) {
         public LaborShiftUpdatedEventObject build() {
             return new LaborShiftUpdatedEventObject(shift, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEvent.java b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEvent.java
index 60e72ec2..7597feaf 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborTimecardCreatedEventData data) {
         public LaborTimecardCreatedEvent build() {
             return new LaborTimecardCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventData.java b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventData.java
index bbe487e0..20a18f85 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LaborTimecardCreatedEventObject object) {
         public LaborTimecardCreatedEventData build() {
             return new LaborTimecardCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventObject.java b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventObject.java
index 6378a772..62d3f56b 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder timecard(Timecard timecard) {
         public LaborTimecardCreatedEventObject build() {
             return new LaborTimecardCreatedEventObject(timecard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardDeletedEvent.java b/src/main/java/com/squareup/square/types/LaborTimecardDeletedEvent.java
index 98b33a08..406a6277 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardDeletedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborTimecardDeletedEventData data) {
         public LaborTimecardDeletedEvent build() {
             return new LaborTimecardDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardDeletedEventData.java b/src/main/java/com/squareup/square/types/LaborTimecardDeletedEventData.java
index c536ccdc..50c06750 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardDeletedEventData.java
@@ -200,5 +200,15 @@ public Builder deleted(Nullable<Boolean> deleted) {
         public LaborTimecardDeletedEventData build() {
             return new LaborTimecardDeletedEventData(type, id, deleted, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEvent.java b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEvent.java
index d365f04e..80393528 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LaborTimecardUpdatedEventData data) {
         public LaborTimecardUpdatedEvent build() {
             return new LaborTimecardUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventData.java b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventData.java
index ebe9cbd0..cec354f6 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LaborTimecardUpdatedEventObject object) {
         public LaborTimecardUpdatedEventData build() {
             return new LaborTimecardUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventObject.java
index 3f711f54..c0f3eeab 100644
--- a/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LaborTimecardUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder timecard(Timecard timecard) {
         public LaborTimecardUpdatedEventObject build() {
             return new LaborTimecardUpdatedEventObject(timecard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardRequest.java b/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardRequest.java
index 28cd90de..a0add70f 100644
--- a/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardRequest.java
+++ b/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardRequest.java
@@ -95,6 +95,10 @@ public interface CustomerIdStage {
 
     public interface _FinalStage {
         LinkCustomerToGiftCardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage customerId(@NotNull String customerId) {
         public LinkCustomerToGiftCardRequest build() {
             return new LinkCustomerToGiftCardRequest(giftCardId, customerId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardResponse.java b/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardResponse.java
index 398bc574..2e47c62d 100644
--- a/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardResponse.java
+++ b/src/main/java/com/squareup/square/types/LinkCustomerToGiftCardResponse.java
@@ -127,5 +127,15 @@ public Builder giftCard(GiftCard giftCard) {
         public LinkCustomerToGiftCardResponse build() {
             return new LinkCustomerToGiftCardResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBankAccountsRequest.java b/src/main/java/com/squareup/square/types/ListBankAccountsRequest.java
index 1d63faef..49f970a6 100644
--- a/src/main/java/com/squareup/square/types/ListBankAccountsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListBankAccountsRequest.java
@@ -286,5 +286,15 @@ public Builder customerId(Nullable<String> customerId) {
         public ListBankAccountsRequest build() {
             return new ListBankAccountsRequest(cursor, limit, locationId, customerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBankAccountsResponse.java b/src/main/java/com/squareup/square/types/ListBankAccountsResponse.java
index 1ef871f4..67e9a39a 100644
--- a/src/main/java/com/squareup/square/types/ListBankAccountsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListBankAccountsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListBankAccountsResponse build() {
             return new ListBankAccountsResponse(bankAccounts, errors, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBookingCustomAttributeDefinitionsResponse.java b/src/main/java/com/squareup/square/types/ListBookingCustomAttributeDefinitionsResponse.java
index 56881d92..53151cdc 100644
--- a/src/main/java/com/squareup/square/types/ListBookingCustomAttributeDefinitionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListBookingCustomAttributeDefinitionsResponse.java
@@ -169,5 +169,15 @@ public ListBookingCustomAttributeDefinitionsResponse build() {
             return new ListBookingCustomAttributeDefinitionsResponse(
                     customAttributeDefinitions, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBookingCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/ListBookingCustomAttributesResponse.java
index 00ee8b80..c992113d 100644
--- a/src/main/java/com/squareup/square/types/ListBookingCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListBookingCustomAttributesResponse.java
@@ -169,5 +169,15 @@ public Builder errors(List<Error> errors) {
         public ListBookingCustomAttributesResponse build() {
             return new ListBookingCustomAttributesResponse(customAttributes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBookingsRequest.java b/src/main/java/com/squareup/square/types/ListBookingsRequest.java
index b0d28673..1ae5595f 100644
--- a/src/main/java/com/squareup/square/types/ListBookingsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListBookingsRequest.java
@@ -430,5 +430,15 @@ public ListBookingsRequest build() {
             return new ListBookingsRequest(
                     limit, cursor, customerId, teamMemberId, locationId, startAtMin, startAtMax, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBookingsResponse.java b/src/main/java/com/squareup/square/types/ListBookingsResponse.java
index c8329e35..046042b7 100644
--- a/src/main/java/com/squareup/square/types/ListBookingsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListBookingsResponse.java
@@ -158,5 +158,15 @@ public Builder errors(List<Error> errors) {
         public ListBookingsResponse build() {
             return new ListBookingsResponse(bookings, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListBreakTypesResponse.java b/src/main/java/com/squareup/square/types/ListBreakTypesResponse.java
index a1aecf3d..174da3f4 100644
--- a/src/main/java/com/squareup/square/types/ListBreakTypesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListBreakTypesResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public ListBreakTypesResponse build() {
             return new ListBreakTypesResponse(breakTypes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCardsRequest.java b/src/main/java/com/squareup/square/types/ListCardsRequest.java
index 1549a293..e247930b 100644
--- a/src/main/java/com/squareup/square/types/ListCardsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListCardsRequest.java
@@ -333,5 +333,15 @@ public ListCardsRequest build() {
             return new ListCardsRequest(
                     cursor, customerId, includeDisabled, referenceId, sortOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCardsResponse.java b/src/main/java/com/squareup/square/types/ListCardsResponse.java
index 11f29f54..18cfbfba 100644
--- a/src/main/java/com/squareup/square/types/ListCardsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCardsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListCardsResponse build() {
             return new ListCardsResponse(errors, cards, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCashDrawerShiftEventsResponse.java b/src/main/java/com/squareup/square/types/ListCashDrawerShiftEventsResponse.java
index c667fb03..19d69f1f 100644
--- a/src/main/java/com/squareup/square/types/ListCashDrawerShiftEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCashDrawerShiftEventsResponse.java
@@ -164,5 +164,15 @@ public Builder cashDrawerShiftEvents(List<CashDrawerShiftEvent> cashDrawerShiftE
         public ListCashDrawerShiftEventsResponse build() {
             return new ListCashDrawerShiftEventsResponse(cursor, errors, cashDrawerShiftEvents, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCashDrawerShiftsResponse.java b/src/main/java/com/squareup/square/types/ListCashDrawerShiftsResponse.java
index d12ebe79..5aa1ca00 100644
--- a/src/main/java/com/squareup/square/types/ListCashDrawerShiftsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCashDrawerShiftsResponse.java
@@ -164,5 +164,15 @@ public Builder cashDrawerShifts(List<CashDrawerShiftSummary> cashDrawerShifts) {
         public ListCashDrawerShiftsResponse build() {
             return new ListCashDrawerShiftsResponse(cursor, errors, cashDrawerShifts, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCatalogRequest.java b/src/main/java/com/squareup/square/types/ListCatalogRequest.java
index 2441fa7a..36fa7f1e 100644
--- a/src/main/java/com/squareup/square/types/ListCatalogRequest.java
+++ b/src/main/java/com/squareup/square/types/ListCatalogRequest.java
@@ -250,5 +250,15 @@ public Builder catalogVersion(Nullable<Long> catalogVersion) {
         public ListCatalogRequest build() {
             return new ListCatalogRequest(cursor, types, catalogVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCatalogResponse.java b/src/main/java/com/squareup/square/types/ListCatalogResponse.java
index c3eb3447..3d48ab7a 100644
--- a/src/main/java/com/squareup/square/types/ListCatalogResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCatalogResponse.java
@@ -160,5 +160,15 @@ public Builder objects(List<CatalogObject> objects) {
         public ListCatalogResponse build() {
             return new ListCatalogResponse(errors, cursor, objects, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListChannelsRequest.java b/src/main/java/com/squareup/square/types/ListChannelsRequest.java
index 784e4783..40e353b4 100644
--- a/src/main/java/com/squareup/square/types/ListChannelsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListChannelsRequest.java
@@ -324,5 +324,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListChannelsRequest build() {
             return new ListChannelsRequest(referenceType, referenceId, status, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListChannelsResponse.java b/src/main/java/com/squareup/square/types/ListChannelsResponse.java
index 20e37573..89657715 100644
--- a/src/main/java/com/squareup/square/types/ListChannelsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListChannelsResponse.java
@@ -158,5 +158,15 @@ public Builder cursor(String cursor) {
         public ListChannelsResponse build() {
             return new ListChannelsResponse(errors, channels, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomerCustomAttributeDefinitionsResponse.java b/src/main/java/com/squareup/square/types/ListCustomerCustomAttributeDefinitionsResponse.java
index 02996bc5..417b5014 100644
--- a/src/main/java/com/squareup/square/types/ListCustomerCustomAttributeDefinitionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCustomerCustomAttributeDefinitionsResponse.java
@@ -169,5 +169,15 @@ public ListCustomerCustomAttributeDefinitionsResponse build() {
             return new ListCustomerCustomAttributeDefinitionsResponse(
                     customAttributeDefinitions, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomerCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/ListCustomerCustomAttributesResponse.java
index 461193ed..e9657d00 100644
--- a/src/main/java/com/squareup/square/types/ListCustomerCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCustomerCustomAttributesResponse.java
@@ -169,5 +169,15 @@ public Builder errors(List<Error> errors) {
         public ListCustomerCustomAttributesResponse build() {
             return new ListCustomerCustomAttributesResponse(customAttributes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomerGroupsResponse.java b/src/main/java/com/squareup/square/types/ListCustomerGroupsResponse.java
index 7b4a1fc7..cd9d0439 100644
--- a/src/main/java/com/squareup/square/types/ListCustomerGroupsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCustomerGroupsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListCustomerGroupsResponse build() {
             return new ListCustomerGroupsResponse(errors, groups, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomerSegmentsResponse.java b/src/main/java/com/squareup/square/types/ListCustomerSegmentsResponse.java
index 8fa33898..dd246d6c 100644
--- a/src/main/java/com/squareup/square/types/ListCustomerSegmentsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCustomerSegmentsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListCustomerSegmentsResponse build() {
             return new ListCustomerSegmentsResponse(errors, segments, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomersRequest.java b/src/main/java/com/squareup/square/types/ListCustomersRequest.java
index 8650e184..adbd68f5 100644
--- a/src/main/java/com/squareup/square/types/ListCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/ListCustomersRequest.java
@@ -338,5 +338,15 @@ public Builder count(Nullable<Boolean> count) {
         public ListCustomersRequest build() {
             return new ListCustomersRequest(cursor, limit, sortField, sortOrder, count, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListCustomersResponse.java b/src/main/java/com/squareup/square/types/ListCustomersResponse.java
index 54203551..f82e8b40 100644
--- a/src/main/java/com/squareup/square/types/ListCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/ListCustomersResponse.java
@@ -204,5 +204,15 @@ public Builder count(Long count) {
         public ListCustomersResponse build() {
             return new ListCustomersResponse(errors, customers, cursor, count, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDeviceCodesResponse.java b/src/main/java/com/squareup/square/types/ListDeviceCodesResponse.java
index 1540e8c7..316c8832 100644
--- a/src/main/java/com/squareup/square/types/ListDeviceCodesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListDeviceCodesResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListDeviceCodesResponse build() {
             return new ListDeviceCodesResponse(errors, deviceCodes, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDevicesRequest.java b/src/main/java/com/squareup/square/types/ListDevicesRequest.java
index 3b67aceb..5dc68423 100644
--- a/src/main/java/com/squareup/square/types/ListDevicesRequest.java
+++ b/src/main/java/com/squareup/square/types/ListDevicesRequest.java
@@ -284,5 +284,15 @@ public Builder locationId(Nullable<String> locationId) {
         public ListDevicesRequest build() {
             return new ListDevicesRequest(cursor, sortOrder, limit, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDevicesResponse.java b/src/main/java/com/squareup/square/types/ListDevicesResponse.java
index c1b4b6ba..01b12543 100644
--- a/src/main/java/com/squareup/square/types/ListDevicesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListDevicesResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListDevicesResponse build() {
             return new ListDevicesResponse(errors, devices, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDisputeEvidenceResponse.java b/src/main/java/com/squareup/square/types/ListDisputeEvidenceResponse.java
index 65eeace0..64eaf790 100644
--- a/src/main/java/com/squareup/square/types/ListDisputeEvidenceResponse.java
+++ b/src/main/java/com/squareup/square/types/ListDisputeEvidenceResponse.java
@@ -160,5 +160,15 @@ public Builder cursor(String cursor) {
         public ListDisputeEvidenceResponse build() {
             return new ListDisputeEvidenceResponse(evidence, errors, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDisputesRequest.java b/src/main/java/com/squareup/square/types/ListDisputesRequest.java
index 3cb5dc65..3cd3392f 100644
--- a/src/main/java/com/squareup/square/types/ListDisputesRequest.java
+++ b/src/main/java/com/squareup/square/types/ListDisputesRequest.java
@@ -226,5 +226,15 @@ public Builder locationId(Nullable<String> locationId) {
         public ListDisputesRequest build() {
             return new ListDisputesRequest(cursor, states, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListDisputesResponse.java b/src/main/java/com/squareup/square/types/ListDisputesResponse.java
index 4fe9f2e5..aa07b085 100644
--- a/src/main/java/com/squareup/square/types/ListDisputesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListDisputesResponse.java
@@ -160,5 +160,15 @@ public Builder cursor(String cursor) {
         public ListDisputesResponse build() {
             return new ListDisputesResponse(errors, disputes, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEmployeeWagesResponse.java b/src/main/java/com/squareup/square/types/ListEmployeeWagesResponse.java
index 59086076..167d68d9 100644
--- a/src/main/java/com/squareup/square/types/ListEmployeeWagesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListEmployeeWagesResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public ListEmployeeWagesResponse build() {
             return new ListEmployeeWagesResponse(employeeWages, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEmployeesRequest.java b/src/main/java/com/squareup/square/types/ListEmployeesRequest.java
index b66a523a..c7c80a60 100644
--- a/src/main/java/com/squareup/square/types/ListEmployeesRequest.java
+++ b/src/main/java/com/squareup/square/types/ListEmployeesRequest.java
@@ -269,5 +269,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListEmployeesRequest build() {
             return new ListEmployeesRequest(locationId, status, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEmployeesResponse.java b/src/main/java/com/squareup/square/types/ListEmployeesResponse.java
index dc6b04b6..4ef57c2d 100644
--- a/src/main/java/com/squareup/square/types/ListEmployeesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListEmployeesResponse.java
@@ -152,5 +152,15 @@ public Builder errors(List<Error> errors) {
         public ListEmployeesResponse build() {
             return new ListEmployeesResponse(employees, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEntriesPayoutsRequest.java b/src/main/java/com/squareup/square/types/ListEntriesPayoutsRequest.java
index 7c8037f2..864d0203 100644
--- a/src/main/java/com/squareup/square/types/ListEntriesPayoutsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListEntriesPayoutsRequest.java
@@ -157,6 +157,10 @@ public interface PayoutIdStage {
     public interface _FinalStage {
         ListEntriesPayoutsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The order in which payout entries are listed.</p>
          */
@@ -361,5 +365,17 @@ public _FinalStage sortOrder(Optional<SortOrder> sortOrder) {
         public ListEntriesPayoutsRequest build() {
             return new ListEntriesPayoutsRequest(payoutId, sortOrder, cursor, limit, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEventTypesRequest.java b/src/main/java/com/squareup/square/types/ListEventTypesRequest.java
index f356b842..f0f6462e 100644
--- a/src/main/java/com/squareup/square/types/ListEventTypesRequest.java
+++ b/src/main/java/com/squareup/square/types/ListEventTypesRequest.java
@@ -120,5 +120,15 @@ public Builder apiVersion(Nullable<String> apiVersion) {
         public ListEventTypesRequest build() {
             return new ListEventTypesRequest(apiVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEventTypesResponse.java b/src/main/java/com/squareup/square/types/ListEventTypesResponse.java
index 470ee310..df79f71c 100644
--- a/src/main/java/com/squareup/square/types/ListEventTypesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListEventTypesResponse.java
@@ -158,5 +158,15 @@ public Builder metadata(List<EventTypeMetadata> metadata) {
         public ListEventTypesResponse build() {
             return new ListEventTypesResponse(errors, eventTypes, metadata, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListEventsSubscriptionsRequest.java b/src/main/java/com/squareup/square/types/ListEventsSubscriptionsRequest.java
index c9a3ad96..3b9b0331 100644
--- a/src/main/java/com/squareup/square/types/ListEventsSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListEventsSubscriptionsRequest.java
@@ -130,6 +130,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         ListEventsSubscriptionsRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>When the total number of resulting subscription events exceeds the limit of a paged response,
          * specify the cursor returned from a preceding response here to fetch the next set of results.
@@ -274,5 +278,17 @@ public _FinalStage cursor(Optional<String> cursor) {
         public ListEventsSubscriptionsRequest build() {
             return new ListEventsSubscriptionsRequest(subscriptionId, cursor, limit, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListGiftCardActivitiesResponse.java b/src/main/java/com/squareup/square/types/ListGiftCardActivitiesResponse.java
index fb4fdb21..16c8f01f 100644
--- a/src/main/java/com/squareup/square/types/ListGiftCardActivitiesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListGiftCardActivitiesResponse.java
@@ -166,5 +166,15 @@ public Builder cursor(String cursor) {
         public ListGiftCardActivitiesResponse build() {
             return new ListGiftCardActivitiesResponse(errors, giftCardActivities, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListGiftCardsRequest.java b/src/main/java/com/squareup/square/types/ListGiftCardsRequest.java
index e2e8060b..5a1509ab 100644
--- a/src/main/java/com/squareup/square/types/ListGiftCardsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListGiftCardsRequest.java
@@ -336,5 +336,15 @@ public Builder customerId(Nullable<String> customerId) {
         public ListGiftCardsRequest build() {
             return new ListGiftCardsRequest(type, state, limit, cursor, customerId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListGiftCardsResponse.java b/src/main/java/com/squareup/square/types/ListGiftCardsResponse.java
index a8c01577..583f5d97 100644
--- a/src/main/java/com/squareup/square/types/ListGiftCardsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListGiftCardsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListGiftCardsResponse build() {
             return new ListGiftCardsResponse(errors, giftCards, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListInvoicesRequest.java b/src/main/java/com/squareup/square/types/ListInvoicesRequest.java
index 4e600ec6..113f046e 100644
--- a/src/main/java/com/squareup/square/types/ListInvoicesRequest.java
+++ b/src/main/java/com/squareup/square/types/ListInvoicesRequest.java
@@ -129,6 +129,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         ListInvoicesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A pagination cursor returned by a previous call to this endpoint.
          * Provide this cursor to retrieve the next set of results for your original query.</p>
@@ -269,5 +273,17 @@ public _FinalStage cursor(Optional<String> cursor) {
         public ListInvoicesRequest build() {
             return new ListInvoicesRequest(locationId, cursor, limit, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListInvoicesResponse.java b/src/main/java/com/squareup/square/types/ListInvoicesResponse.java
index 0e549ab1..86edd79e 100644
--- a/src/main/java/com/squareup/square/types/ListInvoicesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListInvoicesResponse.java
@@ -164,5 +164,15 @@ public Builder errors(List<Error> errors) {
         public ListInvoicesResponse build() {
             return new ListInvoicesResponse(invoices, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListJobsRequest.java b/src/main/java/com/squareup/square/types/ListJobsRequest.java
index 444dac08..dffb7bd9 100644
--- a/src/main/java/com/squareup/square/types/ListJobsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListJobsRequest.java
@@ -124,5 +124,15 @@ public Builder cursor(Nullable<String> cursor) {
         public ListJobsRequest build() {
             return new ListJobsRequest(cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListJobsResponse.java b/src/main/java/com/squareup/square/types/ListJobsResponse.java
index 56614a98..924ac148 100644
--- a/src/main/java/com/squareup/square/types/ListJobsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListJobsResponse.java
@@ -162,5 +162,15 @@ public Builder errors(List<Error> errors) {
         public ListJobsResponse build() {
             return new ListJobsResponse(jobs, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLocationBookingProfilesResponse.java b/src/main/java/com/squareup/square/types/ListLocationBookingProfilesResponse.java
index b20d898d..3ee143d5 100644
--- a/src/main/java/com/squareup/square/types/ListLocationBookingProfilesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLocationBookingProfilesResponse.java
@@ -162,5 +162,15 @@ public ListLocationBookingProfilesResponse build() {
             return new ListLocationBookingProfilesResponse(
                     locationBookingProfiles, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLocationCustomAttributeDefinitionsResponse.java b/src/main/java/com/squareup/square/types/ListLocationCustomAttributeDefinitionsResponse.java
index f58ed842..b5dd2c05 100644
--- a/src/main/java/com/squareup/square/types/ListLocationCustomAttributeDefinitionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLocationCustomAttributeDefinitionsResponse.java
@@ -169,5 +169,15 @@ public ListLocationCustomAttributeDefinitionsResponse build() {
             return new ListLocationCustomAttributeDefinitionsResponse(
                     customAttributeDefinitions, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLocationCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/ListLocationCustomAttributesResponse.java
index 2a3d4a45..7743a273 100644
--- a/src/main/java/com/squareup/square/types/ListLocationCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLocationCustomAttributesResponse.java
@@ -169,5 +169,15 @@ public Builder errors(List<Error> errors) {
         public ListLocationCustomAttributesResponse build() {
             return new ListLocationCustomAttributesResponse(customAttributes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLocationsResponse.java b/src/main/java/com/squareup/square/types/ListLocationsResponse.java
index 98d0a9c1..47d50ce4 100644
--- a/src/main/java/com/squareup/square/types/ListLocationsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLocationsResponse.java
@@ -129,5 +129,15 @@ public Builder locations(List<Location> locations) {
         public ListLocationsResponse build() {
             return new ListLocationsResponse(errors, locations, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLoyaltyProgramsResponse.java b/src/main/java/com/squareup/square/types/ListLoyaltyProgramsResponse.java
index 72ae9c26..0ce025b3 100644
--- a/src/main/java/com/squareup/square/types/ListLoyaltyProgramsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLoyaltyProgramsResponse.java
@@ -129,5 +129,15 @@ public Builder programs(List<LoyaltyProgram> programs) {
         public ListLoyaltyProgramsResponse build() {
             return new ListLoyaltyProgramsResponse(errors, programs, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListLoyaltyPromotionsResponse.java b/src/main/java/com/squareup/square/types/ListLoyaltyPromotionsResponse.java
index c4791366..5fcc4438 100644
--- a/src/main/java/com/squareup/square/types/ListLoyaltyPromotionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListLoyaltyPromotionsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListLoyaltyPromotionsResponse build() {
             return new ListLoyaltyPromotionsResponse(errors, loyaltyPromotions, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListMerchantCustomAttributeDefinitionsResponse.java b/src/main/java/com/squareup/square/types/ListMerchantCustomAttributeDefinitionsResponse.java
index 3cbb0fbc..b542d6d4 100644
--- a/src/main/java/com/squareup/square/types/ListMerchantCustomAttributeDefinitionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListMerchantCustomAttributeDefinitionsResponse.java
@@ -169,5 +169,15 @@ public ListMerchantCustomAttributeDefinitionsResponse build() {
             return new ListMerchantCustomAttributeDefinitionsResponse(
                     customAttributeDefinitions, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListMerchantCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/ListMerchantCustomAttributesResponse.java
index 29d4d5c4..41d9e7b0 100644
--- a/src/main/java/com/squareup/square/types/ListMerchantCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListMerchantCustomAttributesResponse.java
@@ -169,5 +169,15 @@ public Builder errors(List<Error> errors) {
         public ListMerchantCustomAttributesResponse build() {
             return new ListMerchantCustomAttributesResponse(customAttributes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListMerchantsRequest.java b/src/main/java/com/squareup/square/types/ListMerchantsRequest.java
index 8b37dc03..7da5a0cb 100644
--- a/src/main/java/com/squareup/square/types/ListMerchantsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListMerchantsRequest.java
@@ -120,5 +120,15 @@ public Builder cursor(Nullable<Integer> cursor) {
         public ListMerchantsRequest build() {
             return new ListMerchantsRequest(cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListMerchantsResponse.java b/src/main/java/com/squareup/square/types/ListMerchantsResponse.java
index c41b0a9b..f5edbe78 100644
--- a/src/main/java/com/squareup/square/types/ListMerchantsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListMerchantsResponse.java
@@ -158,5 +158,15 @@ public Builder cursor(Integer cursor) {
         public ListMerchantsResponse build() {
             return new ListMerchantsResponse(errors, merchant, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListOrderCustomAttributeDefinitionsResponse.java b/src/main/java/com/squareup/square/types/ListOrderCustomAttributeDefinitionsResponse.java
index 358c5b45..ec75fefd 100644
--- a/src/main/java/com/squareup/square/types/ListOrderCustomAttributeDefinitionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListOrderCustomAttributeDefinitionsResponse.java
@@ -177,5 +177,15 @@ public ListOrderCustomAttributeDefinitionsResponse build() {
             return new ListOrderCustomAttributeDefinitionsResponse(
                     customAttributeDefinitions, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListOrderCustomAttributesResponse.java b/src/main/java/com/squareup/square/types/ListOrderCustomAttributesResponse.java
index 050936cd..f92e3987 100644
--- a/src/main/java/com/squareup/square/types/ListOrderCustomAttributesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListOrderCustomAttributesResponse.java
@@ -164,5 +164,15 @@ public Builder errors(List<Error> errors) {
         public ListOrderCustomAttributesResponse build() {
             return new ListOrderCustomAttributesResponse(customAttributes, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPaymentLinksResponse.java b/src/main/java/com/squareup/square/types/ListPaymentLinksResponse.java
index 62a8840e..2756db5d 100644
--- a/src/main/java/com/squareup/square/types/ListPaymentLinksResponse.java
+++ b/src/main/java/com/squareup/square/types/ListPaymentLinksResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListPaymentLinksResponse build() {
             return new ListPaymentLinksResponse(errors, paymentLinks, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPaymentRefundsResponse.java b/src/main/java/com/squareup/square/types/ListPaymentRefundsResponse.java
index 5ba05320..839fb037 100644
--- a/src/main/java/com/squareup/square/types/ListPaymentRefundsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListPaymentRefundsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListPaymentRefundsResponse build() {
             return new ListPaymentRefundsResponse(errors, refunds, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPaymentsRequest.java b/src/main/java/com/squareup/square/types/ListPaymentsRequest.java
index 6943a41c..da4ee45a 100644
--- a/src/main/java/com/squareup/square/types/ListPaymentsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListPaymentsRequest.java
@@ -903,5 +903,15 @@ public ListPaymentsRequest build() {
                     sortField,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPaymentsResponse.java b/src/main/java/com/squareup/square/types/ListPaymentsResponse.java
index 25417916..4ede2d8f 100644
--- a/src/main/java/com/squareup/square/types/ListPaymentsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListPaymentsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListPaymentsResponse build() {
             return new ListPaymentsResponse(errors, payments, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPayoutEntriesResponse.java b/src/main/java/com/squareup/square/types/ListPayoutEntriesResponse.java
index c895376a..973a9cc5 100644
--- a/src/main/java/com/squareup/square/types/ListPayoutEntriesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListPayoutEntriesResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public ListPayoutEntriesResponse build() {
             return new ListPayoutEntriesResponse(payoutEntries, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPayoutsRequest.java b/src/main/java/com/squareup/square/types/ListPayoutsRequest.java
index 8ffc3d53..0b60c97f 100644
--- a/src/main/java/com/squareup/square/types/ListPayoutsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListPayoutsRequest.java
@@ -444,5 +444,15 @@ public ListPayoutsRequest build() {
             return new ListPayoutsRequest(
                     locationId, status, beginTime, endTime, sortOrder, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListPayoutsResponse.java b/src/main/java/com/squareup/square/types/ListPayoutsResponse.java
index 3bbf4638..71cdb4f4 100644
--- a/src/main/java/com/squareup/square/types/ListPayoutsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListPayoutsResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public ListPayoutsResponse build() {
             return new ListPayoutsResponse(payouts, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListRefundsRequest.java b/src/main/java/com/squareup/square/types/ListRefundsRequest.java
index 3b2793ac..cae1ef6b 100644
--- a/src/main/java/com/squareup/square/types/ListRefundsRequest.java
+++ b/src/main/java/com/squareup/square/types/ListRefundsRequest.java
@@ -693,5 +693,15 @@ public ListRefundsRequest build() {
                     sortField,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListSitesResponse.java b/src/main/java/com/squareup/square/types/ListSitesResponse.java
index 726b2dc0..0155c78e 100644
--- a/src/main/java/com/squareup/square/types/ListSitesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListSitesResponse.java
@@ -127,5 +127,15 @@ public Builder sites(List<Site> sites) {
         public ListSitesResponse build() {
             return new ListSitesResponse(errors, sites, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListSubscriptionEventsResponse.java b/src/main/java/com/squareup/square/types/ListSubscriptionEventsResponse.java
index d68c11c4..826746e9 100644
--- a/src/main/java/com/squareup/square/types/ListSubscriptionEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListSubscriptionEventsResponse.java
@@ -166,5 +166,15 @@ public Builder cursor(String cursor) {
         public ListSubscriptionEventsResponse build() {
             return new ListSubscriptionEventsResponse(errors, subscriptionEvents, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListTeamMemberBookingProfilesResponse.java b/src/main/java/com/squareup/square/types/ListTeamMemberBookingProfilesResponse.java
index b6737071..638568df 100644
--- a/src/main/java/com/squareup/square/types/ListTeamMemberBookingProfilesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListTeamMemberBookingProfilesResponse.java
@@ -166,5 +166,15 @@ public ListTeamMemberBookingProfilesResponse build() {
             return new ListTeamMemberBookingProfilesResponse(
                     teamMemberBookingProfiles, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListTeamMemberWagesResponse.java b/src/main/java/com/squareup/square/types/ListTeamMemberWagesResponse.java
index efc409fa..45dab7f0 100644
--- a/src/main/java/com/squareup/square/types/ListTeamMemberWagesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListTeamMemberWagesResponse.java
@@ -162,5 +162,15 @@ public Builder errors(List<Error> errors) {
         public ListTeamMemberWagesResponse build() {
             return new ListTeamMemberWagesResponse(teamMemberWages, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListTransactionsResponse.java b/src/main/java/com/squareup/square/types/ListTransactionsResponse.java
index 75b3c4e5..73dbdb0e 100644
--- a/src/main/java/com/squareup/square/types/ListTransactionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListTransactionsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public ListTransactionsResponse build() {
             return new ListTransactionsResponse(errors, transactions, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListWebhookEventTypesResponse.java b/src/main/java/com/squareup/square/types/ListWebhookEventTypesResponse.java
index 1c893333..a35227b3 100644
--- a/src/main/java/com/squareup/square/types/ListWebhookEventTypesResponse.java
+++ b/src/main/java/com/squareup/square/types/ListWebhookEventTypesResponse.java
@@ -158,5 +158,15 @@ public Builder metadata(List<EventTypeMetadata> metadata) {
         public ListWebhookEventTypesResponse build() {
             return new ListWebhookEventTypesResponse(errors, eventTypes, metadata, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListWebhookSubscriptionsResponse.java b/src/main/java/com/squareup/square/types/ListWebhookSubscriptionsResponse.java
index 7ef7d872..880c50b7 100644
--- a/src/main/java/com/squareup/square/types/ListWebhookSubscriptionsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListWebhookSubscriptionsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public ListWebhookSubscriptionsResponse build() {
             return new ListWebhookSubscriptionsResponse(errors, subscriptions, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ListWorkweekConfigsResponse.java b/src/main/java/com/squareup/square/types/ListWorkweekConfigsResponse.java
index a7fe352f..15b0ab27 100644
--- a/src/main/java/com/squareup/square/types/ListWorkweekConfigsResponse.java
+++ b/src/main/java/com/squareup/square/types/ListWorkweekConfigsResponse.java
@@ -162,5 +162,15 @@ public Builder errors(List<Error> errors) {
         public ListWorkweekConfigsResponse build() {
             return new ListWorkweekConfigsResponse(workweekConfigs, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Location.java b/src/main/java/com/squareup/square/types/Location.java
index 1ed571d0..348a5fd3 100644
--- a/src/main/java/com/squareup/square/types/Location.java
+++ b/src/main/java/com/squareup/square/types/Location.java
@@ -1220,5 +1220,15 @@ public Location build() {
                     taxIds,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationBookingProfile.java b/src/main/java/com/squareup/square/types/LocationBookingProfile.java
index 76325db6..d8fd43a1 100644
--- a/src/main/java/com/squareup/square/types/LocationBookingProfile.java
+++ b/src/main/java/com/squareup/square/types/LocationBookingProfile.java
@@ -222,5 +222,15 @@ public Builder onlineBookingEnabled(Nullable<Boolean> onlineBookingEnabled) {
         public LocationBookingProfile build() {
             return new LocationBookingProfile(locationId, bookingSiteUrl, onlineBookingEnabled, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCreatedEvent.java b/src/main/java/com/squareup/square/types/LocationCreatedEvent.java
index cc3a25e9..8435d356 100644
--- a/src/main/java/com/squareup/square/types/LocationCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCreatedEvent.java
@@ -333,5 +333,15 @@ public LocationCreatedEvent build() {
             return new LocationCreatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCreatedEventData.java b/src/main/java/com/squareup/square/types/LocationCreatedEventData.java
index 5c21a3df..1d97dcc2 100644
--- a/src/main/java/com/squareup/square/types/LocationCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LocationCreatedEventData.java
@@ -149,5 +149,15 @@ public Builder id(String id) {
         public LocationCreatedEventData build() {
             return new LocationCreatedEventData(type, id, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedCreatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedCreatedEvent.java
index 0dfccd8d..3bcd9bdc 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedCreatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionOwnedCreatedEvent build() {
             return new LocationCustomAttributeDefinitionOwnedCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedDeletedEvent.java
index 4c818343..677e6e82 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionOwnedDeletedEvent build() {
             return new LocationCustomAttributeDefinitionOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedUpdatedEvent.java
index 95116277..e4325846 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionOwnedUpdatedEvent build() {
             return new LocationCustomAttributeDefinitionOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleCreatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleCreatedEvent.java
index 18b07c00..bc258bdb 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleCreatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionVisibleCreatedEvent build() {
             return new LocationCustomAttributeDefinitionVisibleCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleDeletedEvent.java
index d22b893a..69650df0 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionVisibleDeletedEvent build() {
             return new LocationCustomAttributeDefinitionVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleUpdatedEvent.java
index 44dfd2a2..ceff4941 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeDefinitionVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeDefinitionVisibleUpdatedEvent build() {
             return new LocationCustomAttributeDefinitionVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedDeletedEvent.java
index ccf3c867..dc5ca05e 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeOwnedDeletedEvent build() {
             return new LocationCustomAttributeOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedUpdatedEvent.java
index 265ef95e..d5a51125 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeOwnedUpdatedEvent build() {
             return new LocationCustomAttributeOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleDeletedEvent.java
index 13e63d77..f2ea7c47 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeVisibleDeletedEvent build() {
             return new LocationCustomAttributeVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleUpdatedEvent.java
index 8caddc30..00a0ca37 100644
--- a/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationCustomAttributeVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public LocationCustomAttributeVisibleUpdatedEvent build() {
             return new LocationCustomAttributeVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEvent.java
index bbaa3ebf..218ccb2e 100644
--- a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(LocationSettingsUpdatedEventData data) {
         public LocationSettingsUpdatedEvent build() {
             return new LocationSettingsUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventData.java b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventData.java
index dd49da46..e7935fa4 100644
--- a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LocationSettingsUpdatedEventObject object) {
         public LocationSettingsUpdatedEventData build() {
             return new LocationSettingsUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventObject.java
index ed2cb306..9dd0374b 100644
--- a/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LocationSettingsUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder locationSettings(CheckoutLocationSettings locationSettings) {
         public LocationSettingsUpdatedEventObject build() {
             return new LocationSettingsUpdatedEventObject(locationSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationUpdatedEvent.java b/src/main/java/com/squareup/square/types/LocationUpdatedEvent.java
index 2cb67db2..70ee7abe 100644
--- a/src/main/java/com/squareup/square/types/LocationUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LocationUpdatedEvent.java
@@ -333,5 +333,15 @@ public LocationUpdatedEvent build() {
             return new LocationUpdatedEvent(
                     merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LocationUpdatedEventData.java b/src/main/java/com/squareup/square/types/LocationUpdatedEventData.java
index 82a0574b..2c060ca4 100644
--- a/src/main/java/com/squareup/square/types/LocationUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LocationUpdatedEventData.java
@@ -149,5 +149,15 @@ public Builder id(String id) {
         public LocationUpdatedEventData build() {
             return new LocationUpdatedEventData(type, id, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccount.java b/src/main/java/com/squareup/square/types/LoyaltyAccount.java
index 68d6382f..59d7d96a 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccount.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccount.java
@@ -249,6 +249,10 @@ public interface ProgramIdStage {
     public interface _FinalStage {
         LoyaltyAccount build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the loyalty account.</p>
          */
@@ -654,5 +658,17 @@ public LoyaltyAccount build() {
                     expiringPointDeadlines,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEvent.java
index da665e09..771c914e 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyAccountCreatedEventData data) {
         public LoyaltyAccountCreatedEvent build() {
             return new LoyaltyAccountCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventData.java
index b1a9272c..cd88c3f4 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyAccountCreatedEventObject object) {
         public LoyaltyAccountCreatedEventData build() {
             return new LoyaltyAccountCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventObject.java
index 5c8bc284..0f0f2b25 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyAccount(LoyaltyAccount loyaltyAccount) {
         public LoyaltyAccountCreatedEventObject build() {
             return new LoyaltyAccountCreatedEventObject(loyaltyAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEvent.java
index 619a5d6d..8ebd9f91 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyAccountDeletedEventData data) {
         public LoyaltyAccountDeletedEvent build() {
             return new LoyaltyAccountDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventData.java
index 452c368d..420a5bbb 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyAccountDeletedEventObject object) {
         public LoyaltyAccountDeletedEventData build() {
             return new LoyaltyAccountDeletedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventObject.java
index b55502f8..c170b954 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountDeletedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyAccount(LoyaltyAccount loyaltyAccount) {
         public LoyaltyAccountDeletedEventObject build() {
             return new LoyaltyAccountDeletedEventObject(loyaltyAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountExpiringPointDeadline.java b/src/main/java/com/squareup/square/types/LoyaltyAccountExpiringPointDeadline.java
index fd8f9841..427763db 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountExpiringPointDeadline.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountExpiringPointDeadline.java
@@ -96,6 +96,10 @@ public interface ExpiresAtStage {
 
     public interface _FinalStage {
         LoyaltyAccountExpiringPointDeadline build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -144,5 +148,17 @@ public _FinalStage expiresAt(@NotNull String expiresAt) {
         public LoyaltyAccountExpiringPointDeadline build() {
             return new LoyaltyAccountExpiringPointDeadline(points, expiresAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountMapping.java b/src/main/java/com/squareup/square/types/LoyaltyAccountMapping.java
index 7d01e83c..5dd0f8fc 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountMapping.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountMapping.java
@@ -180,5 +180,15 @@ public Builder phoneNumber(Nullable<String> phoneNumber) {
         public LoyaltyAccountMapping build() {
             return new LoyaltyAccountMapping(id, createdAt, phoneNumber, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEvent.java
index 402e786f..afce7283 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyAccountUpdatedEventData data) {
         public LoyaltyAccountUpdatedEvent build() {
             return new LoyaltyAccountUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventData.java
index 8327a01d..f746ddfe 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyAccountUpdatedEventObject object) {
         public LoyaltyAccountUpdatedEventData build() {
             return new LoyaltyAccountUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventObject.java
index d8c62ca4..8af7ce45 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyAccountUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyAccount(LoyaltyAccount loyaltyAccount) {
         public LoyaltyAccountUpdatedEventObject build() {
             return new LoyaltyAccountUpdatedEventObject(loyaltyAccount, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEvent.java b/src/main/java/com/squareup/square/types/LoyaltyEvent.java
index 3e1cac21..79d09f9d 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEvent.java
@@ -275,6 +275,10 @@ public interface SourceStage {
     public interface _FinalStage {
         LoyaltyEvent build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the loyalty event.</p>
          */
@@ -703,5 +707,17 @@ public LoyaltyEvent build() {
                     accumulatePromotionPoints,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePoints.java b/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePoints.java
index cdaaeca6..24dc8b43 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePoints.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePoints.java
@@ -204,5 +204,15 @@ public Builder orderId(Nullable<String> orderId) {
         public LoyaltyEventAccumulatePoints build() {
             return new LoyaltyEventAccumulatePoints(loyaltyProgramId, points, orderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePromotionPoints.java b/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePromotionPoints.java
index 213e0d0a..e84891e1 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePromotionPoints.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventAccumulatePromotionPoints.java
@@ -193,5 +193,15 @@ public LoyaltyEventAccumulatePromotionPoints build() {
             return new LoyaltyEventAccumulatePromotionPoints(
                     loyaltyProgramId, loyaltyPromotionId, points, orderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventAdjustPoints.java b/src/main/java/com/squareup/square/types/LoyaltyEventAdjustPoints.java
index c565a9a2..0ced6626 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventAdjustPoints.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventAdjustPoints.java
@@ -116,6 +116,10 @@ public interface PointsStage {
     public interface _FinalStage {
         LoyaltyEventAdjustPoints build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the <a href="entity:LoyaltyProgram">loyalty program</a>.</p>
          */
@@ -226,5 +230,17 @@ public _FinalStage loyaltyProgramId(Optional<String> loyaltyProgramId) {
         public LoyaltyEventAdjustPoints build() {
             return new LoyaltyEventAdjustPoints(loyaltyProgramId, points, reason, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventCreateReward.java b/src/main/java/com/squareup/square/types/LoyaltyEventCreateReward.java
index 77793aa2..cfce1784 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventCreateReward.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventCreateReward.java
@@ -161,5 +161,15 @@ public Builder points(Integer points) {
         public LoyaltyEventCreateReward build() {
             return new LoyaltyEventCreateReward(loyaltyProgramId, rewardId, points, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEvent.java
index 78cf8ec9..beaa7cbf 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyEventCreatedEventData data) {
         public LoyaltyEventCreatedEvent build() {
             return new LoyaltyEventCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventData.java
index 0fc5a3ba..11c3689f 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyEventCreatedEventObject object) {
         public LoyaltyEventCreatedEventData build() {
             return new LoyaltyEventCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventObject.java
index 765d8db4..36d2156e 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyEvent(LoyaltyEvent loyaltyEvent) {
         public LoyaltyEventCreatedEventObject build() {
             return new LoyaltyEventCreatedEventObject(loyaltyEvent, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventDateTimeFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventDateTimeFilter.java
index 01852c5c..e94cd22b 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventDateTimeFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventDateTimeFilter.java
@@ -76,6 +76,10 @@ public interface CreatedAtStage {
 
     public interface _FinalStage {
         LoyaltyEventDateTimeFilter build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage createdAt(@NotNull TimeRange createdAt) {
         public LoyaltyEventDateTimeFilter build() {
             return new LoyaltyEventDateTimeFilter(createdAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventDeleteReward.java b/src/main/java/com/squareup/square/types/LoyaltyEventDeleteReward.java
index 2dd7698a..03226001 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventDeleteReward.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventDeleteReward.java
@@ -161,5 +161,15 @@ public Builder points(Integer points) {
         public LoyaltyEventDeleteReward build() {
             return new LoyaltyEventDeleteReward(loyaltyProgramId, rewardId, points, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventExpirePoints.java b/src/main/java/com/squareup/square/types/LoyaltyEventExpirePoints.java
index 229dd163..06dbe955 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventExpirePoints.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventExpirePoints.java
@@ -90,6 +90,10 @@ public interface PointsStage {
     public interface _FinalStage {
         LoyaltyEventExpirePoints build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the <a href="entity:LoyaltyProgram">loyalty program</a>.</p>
          */
@@ -152,5 +156,17 @@ public _FinalStage loyaltyProgramId(Optional<String> loyaltyProgramId) {
         public LoyaltyEventExpirePoints build() {
             return new LoyaltyEventExpirePoints(loyaltyProgramId, points, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventFilter.java
index 343bb9b9..773e4c9b 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventFilter.java
@@ -230,5 +230,15 @@ public LoyaltyEventFilter build() {
                     orderFilter,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventLocationFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventLocationFilter.java
index b1b5aa5f..f3e81445 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventLocationFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventLocationFilter.java
@@ -112,5 +112,15 @@ public Builder addAllLocationIds(List<String> locationIds) {
         public LoyaltyEventLocationFilter build() {
             return new LoyaltyEventLocationFilter(locationIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventLoyaltyAccountFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventLoyaltyAccountFilter.java
index dd5cdf78..327dc460 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventLoyaltyAccountFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventLoyaltyAccountFilter.java
@@ -76,6 +76,10 @@ public interface LoyaltyAccountIdStage {
 
     public interface _FinalStage {
         LoyaltyEventLoyaltyAccountFilter build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage loyaltyAccountId(@NotNull String loyaltyAccountId) {
         public LoyaltyEventLoyaltyAccountFilter build() {
             return new LoyaltyEventLoyaltyAccountFilter(loyaltyAccountId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventOrderFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventOrderFilter.java
index dbafe23c..01612729 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventOrderFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventOrderFilter.java
@@ -76,6 +76,10 @@ public interface OrderIdStage {
 
     public interface _FinalStage {
         LoyaltyEventOrderFilter build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage orderId(@NotNull String orderId) {
         public LoyaltyEventOrderFilter build() {
             return new LoyaltyEventOrderFilter(orderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventOther.java b/src/main/java/com/squareup/square/types/LoyaltyEventOther.java
index e682dd36..45619d1b 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventOther.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventOther.java
@@ -89,6 +89,10 @@ public interface PointsStage {
     public interface _FinalStage {
         LoyaltyEventOther build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the <a href="entity:LoyaltyProgram">loyalty program</a>.</p>
          */
@@ -151,5 +155,17 @@ public _FinalStage loyaltyProgramId(Optional<String> loyaltyProgramId) {
         public LoyaltyEventOther build() {
             return new LoyaltyEventOther(loyaltyProgramId, points, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventQuery.java b/src/main/java/com/squareup/square/types/LoyaltyEventQuery.java
index 7c133d47..7e1d8afe 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventQuery.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventQuery.java
@@ -97,5 +97,15 @@ public Builder filter(LoyaltyEventFilter filter) {
         public LoyaltyEventQuery build() {
             return new LoyaltyEventQuery(filter, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventRedeemReward.java b/src/main/java/com/squareup/square/types/LoyaltyEventRedeemReward.java
index 4bce1acc..3b663c1e 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventRedeemReward.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventRedeemReward.java
@@ -163,5 +163,15 @@ public Builder orderId(String orderId) {
         public LoyaltyEventRedeemReward build() {
             return new LoyaltyEventRedeemReward(loyaltyProgramId, rewardId, orderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyEventTypeFilter.java b/src/main/java/com/squareup/square/types/LoyaltyEventTypeFilter.java
index ebefd4b0..b951e5b9 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyEventTypeFilter.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyEventTypeFilter.java
@@ -114,5 +114,15 @@ public Builder addAllTypes(List<LoyaltyEventType> types) {
         public LoyaltyEventTypeFilter build() {
             return new LoyaltyEventTypeFilter(types, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgram.java b/src/main/java/com/squareup/square/types/LoyaltyProgram.java
index 68d4473c..26c1a0ed 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgram.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgram.java
@@ -430,5 +430,15 @@ public LoyaltyProgram build() {
                     accrualRules,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRule.java b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRule.java
index a8a731db..e834daea 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRule.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRule.java
@@ -167,6 +167,10 @@ public interface AccrualTypeStage {
     public interface _FinalStage {
         LoyaltyProgramAccrualRule build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The number of points that
          * buyers earn based on the <code>accrual_type</code>.</p>
@@ -374,5 +378,17 @@ public LoyaltyProgramAccrualRule build() {
             return new LoyaltyProgramAccrualRule(
                     accrualType, points, visitData, spendData, itemVariationData, categoryData, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleCategoryData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleCategoryData.java
index 9150c0f9..233df4c3 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleCategoryData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleCategoryData.java
@@ -79,6 +79,10 @@ public interface CategoryIdStage {
 
     public interface _FinalStage {
         LoyaltyProgramAccrualRuleCategoryData build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -114,5 +118,17 @@ public _FinalStage categoryId(@NotNull String categoryId) {
         public LoyaltyProgramAccrualRuleCategoryData build() {
             return new LoyaltyProgramAccrualRuleCategoryData(categoryId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleItemVariationData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleItemVariationData.java
index 4cba9f21..4dd60dff 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleItemVariationData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleItemVariationData.java
@@ -80,6 +80,10 @@ public interface ItemVariationIdStage {
 
     public interface _FinalStage {
         LoyaltyProgramAccrualRuleItemVariationData build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -115,5 +119,17 @@ public _FinalStage itemVariationId(@NotNull String itemVariationId) {
         public LoyaltyProgramAccrualRuleItemVariationData build() {
             return new LoyaltyProgramAccrualRuleItemVariationData(itemVariationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleSpendData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleSpendData.java
index abba9e6b..8656b46f 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleSpendData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleSpendData.java
@@ -158,6 +158,10 @@ public interface TaxModeStage {
     public interface _FinalStage {
         LoyaltyProgramAccrualRuleSpendData build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The IDs of any <code>CATEGORY</code> catalog objects that are excluded from points accrual.</p>
          * <p>You can use the <a href="api-endpoint:Catalog-BatchRetrieveCatalogObjects">BatchRetrieveCatalogObjects</a>
@@ -322,5 +326,17 @@ public LoyaltyProgramAccrualRuleSpendData build() {
             return new LoyaltyProgramAccrualRuleSpendData(
                     amountMoney, excludedCategoryIds, excludedItemVariationIds, taxMode, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleVisitData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleVisitData.java
index cd874b9f..3b0f50cc 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleVisitData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramAccrualRuleVisitData.java
@@ -98,6 +98,10 @@ public interface TaxModeStage {
     public interface _FinalStage {
         LoyaltyProgramAccrualRuleVisitData build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The minimum purchase required during the visit to quality for points.</p>
          */
@@ -164,5 +168,17 @@ public _FinalStage minimumAmountMoney(Optional<Money> minimumAmountMoney) {
         public LoyaltyProgramAccrualRuleVisitData build() {
             return new LoyaltyProgramAccrualRuleVisitData(minimumAmountMoney, taxMode, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEvent.java
index 4c380c5f..b8c3f755 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyProgramCreatedEventData data) {
         public LoyaltyProgramCreatedEvent build() {
             return new LoyaltyProgramCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventData.java
index 7e2d3be1..ede47eae 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyProgramCreatedEventObject object) {
         public LoyaltyProgramCreatedEventData build() {
             return new LoyaltyProgramCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventObject.java
index 3ade5891..d7429733 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyProgram(LoyaltyProgram loyaltyProgram) {
         public LoyaltyProgramCreatedEventObject build() {
             return new LoyaltyProgramCreatedEventObject(loyaltyProgram, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramExpirationPolicy.java b/src/main/java/com/squareup/square/types/LoyaltyProgramExpirationPolicy.java
index 241774fb..ede2385d 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramExpirationPolicy.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramExpirationPolicy.java
@@ -78,6 +78,10 @@ public interface ExpirationDurationStage {
 
     public interface _FinalStage {
         LoyaltyProgramExpirationPolicy build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -113,5 +117,17 @@ public _FinalStage expirationDuration(@NotNull String expirationDuration) {
         public LoyaltyProgramExpirationPolicy build() {
             return new LoyaltyProgramExpirationPolicy(expirationDuration, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramRewardTier.java b/src/main/java/com/squareup/square/types/LoyaltyProgramRewardTier.java
index 239775a9..9db518f0 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramRewardTier.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramRewardTier.java
@@ -146,6 +146,10 @@ public interface PricingRuleReferenceStage {
     public interface _FinalStage {
         LoyaltyProgramRewardTier build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the reward tier.</p>
          */
@@ -291,5 +295,17 @@ public LoyaltyProgramRewardTier build() {
             return new LoyaltyProgramRewardTier(
                     id, points, name, createdAt, pricingRuleReference, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramTerminology.java b/src/main/java/com/squareup/square/types/LoyaltyProgramTerminology.java
index 9487ce34..5bfa6648 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramTerminology.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramTerminology.java
@@ -94,6 +94,10 @@ public interface OtherStage {
 
     public interface _FinalStage {
         LoyaltyProgramTerminology build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage other(@NotNull String other) {
         public LoyaltyProgramTerminology build() {
             return new LoyaltyProgramTerminology(one, other, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEvent.java
index da53667b..5683f9a2 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyProgramUpdatedEventData data) {
         public LoyaltyProgramUpdatedEvent build() {
             return new LoyaltyProgramUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventData.java
index 7d136b90..08d72276 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyProgramUpdatedEventObject object) {
         public LoyaltyProgramUpdatedEventData build() {
             return new LoyaltyProgramUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventObject.java
index 4b5a0892..c0297e83 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyProgramUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder loyaltyProgram(LoyaltyProgram loyaltyProgram) {
         public LoyaltyProgramUpdatedEventObject build() {
             return new LoyaltyProgramUpdatedEventObject(loyaltyProgram, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotion.java b/src/main/java/com/squareup/square/types/LoyaltyPromotion.java
index bedbcebf..232a248a 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotion.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotion.java
@@ -298,6 +298,10 @@ public interface AvailableTimeStage {
     public interface _FinalStage {
         LoyaltyPromotion build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the promotion.</p>
          */
@@ -750,5 +754,17 @@ public LoyaltyPromotion build() {
                     qualifyingCategoryIds,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionAvailableTimeData.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionAvailableTimeData.java
index d216ac83..5bac2c78 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionAvailableTimeData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionAvailableTimeData.java
@@ -193,5 +193,15 @@ public Builder addAllTimePeriods(List<String> timePeriods) {
         public LoyaltyPromotionAvailableTimeData build() {
             return new LoyaltyPromotionAvailableTimeData(startDate, endDate, timePeriods, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEvent.java
index 0e1447c6..13631bee 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyPromotionCreatedEventData data) {
         public LoyaltyPromotionCreatedEvent build() {
             return new LoyaltyPromotionCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventData.java
index 2da1d456..7b03f27b 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyPromotionCreatedEventObject object) {
         public LoyaltyPromotionCreatedEventData build() {
             return new LoyaltyPromotionCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventObject.java
index 8cbcb947..21ea62f8 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionCreatedEventObject.java
@@ -99,5 +99,15 @@ public Builder loyaltyPromotion(LoyaltyPromotion loyaltyPromotion) {
         public LoyaltyPromotionCreatedEventObject build() {
             return new LoyaltyPromotionCreatedEventObject(loyaltyPromotion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentive.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentive.java
index 33df3814..a0ba5e68 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentive.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentive.java
@@ -109,6 +109,10 @@ public interface TypeStage {
     public interface _FinalStage {
         LoyaltyPromotionIncentive build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Additional data for a <code>POINTS_MULTIPLIER</code> incentive type.</p>
          */
@@ -205,5 +209,17 @@ public _FinalStage pointsMultiplierData(
         public LoyaltyPromotionIncentive build() {
             return new LoyaltyPromotionIncentive(type, pointsMultiplierData, pointsAdditionData, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsAdditionData.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsAdditionData.java
index f3f235fa..5a8d1834 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsAdditionData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsAdditionData.java
@@ -82,6 +82,10 @@ public interface PointsAdditionStage {
 
     public interface _FinalStage {
         LoyaltyPromotionIncentivePointsAdditionData build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -121,5 +125,17 @@ public _FinalStage pointsAddition(int pointsAddition) {
         public LoyaltyPromotionIncentivePointsAdditionData build() {
             return new LoyaltyPromotionIncentivePointsAdditionData(pointsAddition, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsMultiplierData.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsMultiplierData.java
index 8f4ad42c..0d2eb917 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsMultiplierData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionIncentivePointsMultiplierData.java
@@ -213,5 +213,15 @@ public LoyaltyPromotionIncentivePointsMultiplierData build() {
             return new LoyaltyPromotionIncentivePointsMultiplierData(
                     pointsMultiplier, multiplier, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionTriggerLimit.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionTriggerLimit.java
index 183b13df..ef564e00 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionTriggerLimit.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionTriggerLimit.java
@@ -93,6 +93,10 @@ public interface TimesStage {
     public interface _FinalStage {
         LoyaltyPromotionTriggerLimit build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The time period the limit applies to.
          * See <a href="#type-loyaltypromotiontriggerlimitinterval">LoyaltyPromotionTriggerLimitInterval</a> for possible values</p>
@@ -158,5 +162,17 @@ public _FinalStage interval(Optional<LoyaltyPromotionTriggerLimitInterval> inter
         public LoyaltyPromotionTriggerLimit build() {
             return new LoyaltyPromotionTriggerLimit(times, interval, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEvent.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEvent.java
index db21d9d5..93a1f973 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEvent.java
@@ -284,5 +284,15 @@ public Builder data(LoyaltyPromotionUpdatedEventData data) {
         public LoyaltyPromotionUpdatedEvent build() {
             return new LoyaltyPromotionUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventData.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventData.java
index f3e35fbf..c23f7a87 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(LoyaltyPromotionUpdatedEventObject object) {
         public LoyaltyPromotionUpdatedEventData build() {
             return new LoyaltyPromotionUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventObject.java b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventObject.java
index 700abb96..e0af3109 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyPromotionUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder loyaltyPromotion(LoyaltyPromotion loyaltyPromotion) {
         public LoyaltyPromotionUpdatedEventObject build() {
             return new LoyaltyPromotionUpdatedEventObject(loyaltyPromotion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/LoyaltyReward.java b/src/main/java/com/squareup/square/types/LoyaltyReward.java
index 3f9f735f..be866088 100644
--- a/src/main/java/com/squareup/square/types/LoyaltyReward.java
+++ b/src/main/java/com/squareup/square/types/LoyaltyReward.java
@@ -214,6 +214,10 @@ public interface RewardTierIdStage {
     public interface _FinalStage {
         LoyaltyReward build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the loyalty reward.</p>
          */
@@ -502,5 +506,17 @@ public LoyaltyReward build() {
                     redeemedAt,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MeasurementUnit.java b/src/main/java/com/squareup/square/types/MeasurementUnit.java
index 9abd0b1b..7655bd43 100644
--- a/src/main/java/com/squareup/square/types/MeasurementUnit.java
+++ b/src/main/java/com/squareup/square/types/MeasurementUnit.java
@@ -342,5 +342,15 @@ public MeasurementUnit build() {
                     type,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MeasurementUnitCustom.java b/src/main/java/com/squareup/square/types/MeasurementUnitCustom.java
index 4c23f141..6fd68b67 100644
--- a/src/main/java/com/squareup/square/types/MeasurementUnitCustom.java
+++ b/src/main/java/com/squareup/square/types/MeasurementUnitCustom.java
@@ -96,6 +96,10 @@ public interface AbbreviationStage {
 
     public interface _FinalStage {
         MeasurementUnitCustom build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -146,5 +150,17 @@ public _FinalStage abbreviation(@NotNull String abbreviation) {
         public MeasurementUnitCustom build() {
             return new MeasurementUnitCustom(name, abbreviation, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Merchant.java b/src/main/java/com/squareup/square/types/Merchant.java
index 3d484e31..dfbc29a3 100644
--- a/src/main/java/com/squareup/square/types/Merchant.java
+++ b/src/main/java/com/squareup/square/types/Merchant.java
@@ -215,6 +215,10 @@ public interface CountryStage {
     public interface _FinalStage {
         Merchant build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-issued ID of the merchant.</p>
          */
@@ -531,5 +535,17 @@ public Merchant build() {
                     createdAt,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedCreatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedCreatedEvent.java
index 45654831..f1c0c3b3 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedCreatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionOwnedCreatedEvent build() {
             return new MerchantCustomAttributeDefinitionOwnedCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedDeletedEvent.java
index 588fed83..d26aeec3 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionOwnedDeletedEvent build() {
             return new MerchantCustomAttributeDefinitionOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedUpdatedEvent.java
index 462b9e15..12c5125c 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionOwnedUpdatedEvent build() {
             return new MerchantCustomAttributeDefinitionOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleCreatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleCreatedEvent.java
index e54dc95c..3b4829e1 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleCreatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionVisibleCreatedEvent build() {
             return new MerchantCustomAttributeDefinitionVisibleCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleDeletedEvent.java
index c4e05d03..799f57b1 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionVisibleDeletedEvent build() {
             return new MerchantCustomAttributeDefinitionVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleUpdatedEvent.java
index 7e39b75b..6fdb6e1e 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeDefinitionVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeDefinitionVisibleUpdatedEvent build() {
             return new MerchantCustomAttributeDefinitionVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedDeletedEvent.java
index 7d8f9d97..f73c41ae 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeOwnedDeletedEvent build() {
             return new MerchantCustomAttributeOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedUpdatedEvent.java
index e096ff26..e949317a 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeOwnedUpdatedEvent build() {
             return new MerchantCustomAttributeOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleDeletedEvent.java
index 07493092..11271ff6 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeVisibleDeletedEvent build() {
             return new MerchantCustomAttributeVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleUpdatedEvent.java
index f0673382..a7391bbb 100644
--- a/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantCustomAttributeVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public MerchantCustomAttributeVisibleUpdatedEvent build() {
             return new MerchantCustomAttributeVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEvent.java b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEvent.java
index 4e793abf..1733c2f8 100644
--- a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(MerchantSettingsUpdatedEventData data) {
         public MerchantSettingsUpdatedEvent build() {
             return new MerchantSettingsUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventData.java b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventData.java
index fe1e7956..f9829024 100644
--- a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(MerchantSettingsUpdatedEventObject object) {
         public MerchantSettingsUpdatedEventData build() {
             return new MerchantSettingsUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventObject.java b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventObject.java
index 693b7a69..2713aa70 100644
--- a/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/MerchantSettingsUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder merchantSettings(CheckoutMerchantSettings merchantSettings) {
         public MerchantSettingsUpdatedEventObject build() {
             return new MerchantSettingsUpdatedEventObject(merchantSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ModifierLocationOverrides.java b/src/main/java/com/squareup/square/types/ModifierLocationOverrides.java
index e7df5331..9b319001 100644
--- a/src/main/java/com/squareup/square/types/ModifierLocationOverrides.java
+++ b/src/main/java/com/squareup/square/types/ModifierLocationOverrides.java
@@ -186,5 +186,15 @@ public Builder soldOut(Boolean soldOut) {
         public ModifierLocationOverrides build() {
             return new ModifierLocationOverrides(locationId, priceMoney, soldOut, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Money.java b/src/main/java/com/squareup/square/types/Money.java
index 6a3144f2..39de5d48 100644
--- a/src/main/java/com/squareup/square/types/Money.java
+++ b/src/main/java/com/squareup/square/types/Money.java
@@ -160,5 +160,15 @@ public Builder currency(Currency currency) {
         public Money build() {
             return new Money(amount, currency, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEvent.java b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEvent.java
index e76b8fff..e84339e5 100644
--- a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEvent.java
+++ b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEvent.java
@@ -282,5 +282,15 @@ public Builder data(OauthAuthorizationRevokedEventData data) {
         public OauthAuthorizationRevokedEvent build() {
             return new OauthAuthorizationRevokedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventData.java b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventData.java
index 8fcc66db..9d592bb6 100644
--- a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventData.java
+++ b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventData.java
@@ -181,5 +181,15 @@ public Builder object(OauthAuthorizationRevokedEventObject object) {
         public OauthAuthorizationRevokedEventData build() {
             return new OauthAuthorizationRevokedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventObject.java b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventObject.java
index 1cd09523..aa5ce961 100644
--- a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventObject.java
+++ b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventObject.java
@@ -100,5 +100,15 @@ public Builder revocation(OauthAuthorizationRevokedEventRevocationObject revocat
         public OauthAuthorizationRevokedEventObject build() {
             return new OauthAuthorizationRevokedEventObject(revocation, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventRevocationObject.java b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventRevocationObject.java
index 8b0e4425..1a65407a 100644
--- a/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventRevocationObject.java
+++ b/src/main/java/com/squareup/square/types/OauthAuthorizationRevokedEventRevocationObject.java
@@ -154,5 +154,15 @@ public Builder revokerType(OauthAuthorizationRevokedEventRevokerType revokerType
         public OauthAuthorizationRevokedEventRevocationObject build() {
             return new OauthAuthorizationRevokedEventRevocationObject(revokedAt, revokerType, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ObtainTokenRequest.java b/src/main/java/com/squareup/square/types/ObtainTokenRequest.java
index 2d3e4f6f..cb937526 100644
--- a/src/main/java/com/squareup/square/types/ObtainTokenRequest.java
+++ b/src/main/java/com/squareup/square/types/ObtainTokenRequest.java
@@ -355,6 +355,10 @@ public interface GrantTypeStage {
     public interface _FinalStage {
         ObtainTokenRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The secret key for your application, which is available as the <strong>Application secret</strong>
          * on the <strong>OAuth</strong> page in the <a href="https://developer.squareup.com/apps">Developer Console</a>.</p>
@@ -956,5 +960,17 @@ public ObtainTokenRequest build() {
                     useJwt,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ObtainTokenResponse.java b/src/main/java/com/squareup/square/types/ObtainTokenResponse.java
index 4fea007b..775df396 100644
--- a/src/main/java/com/squareup/square/types/ObtainTokenResponse.java
+++ b/src/main/java/com/squareup/square/types/ObtainTokenResponse.java
@@ -471,5 +471,15 @@ public ObtainTokenResponse build() {
                     refreshTokenExpiresAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OfflinePaymentDetails.java b/src/main/java/com/squareup/square/types/OfflinePaymentDetails.java
index 9aa2cbd9..8bd706e5 100644
--- a/src/main/java/com/squareup/square/types/OfflinePaymentDetails.java
+++ b/src/main/java/com/squareup/square/types/OfflinePaymentDetails.java
@@ -97,5 +97,15 @@ public Builder clientCreatedAt(String clientCreatedAt) {
         public OfflinePaymentDetails build() {
             return new OfflinePaymentDetails(clientCreatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Order.java b/src/main/java/com/squareup/square/types/Order.java
index 84f0af70..0c2c133d 100644
--- a/src/main/java/com/squareup/square/types/Order.java
+++ b/src/main/java/com/squareup/square/types/Order.java
@@ -633,6 +633,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         Order build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The order's unique ID.</p>
          */
@@ -1930,5 +1934,17 @@ public Order build() {
                     netAmountDueMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCreated.java b/src/main/java/com/squareup/square/types/OrderCreated.java
index 341f7371..8a0952b9 100644
--- a/src/main/java/com/squareup/square/types/OrderCreated.java
+++ b/src/main/java/com/squareup/square/types/OrderCreated.java
@@ -270,5 +270,15 @@ public Builder createdAt(String createdAt) {
         public OrderCreated build() {
             return new OrderCreated(orderId, version, locationId, state, createdAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCreatedEvent.java b/src/main/java/com/squareup/square/types/OrderCreatedEvent.java
index 98fce60f..470c8d6f 100644
--- a/src/main/java/com/squareup/square/types/OrderCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(OrderCreatedEventData data) {
         public OrderCreatedEvent build() {
             return new OrderCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCreatedEventData.java b/src/main/java/com/squareup/square/types/OrderCreatedEventData.java
index 9f1fa877..f75e61d3 100644
--- a/src/main/java/com/squareup/square/types/OrderCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/OrderCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(OrderCreatedObject object) {
         public OrderCreatedEventData build() {
             return new OrderCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCreatedObject.java b/src/main/java/com/squareup/square/types/OrderCreatedObject.java
index 465f5b04..4c720955 100644
--- a/src/main/java/com/squareup/square/types/OrderCreatedObject.java
+++ b/src/main/java/com/squareup/square/types/OrderCreatedObject.java
@@ -97,5 +97,15 @@ public Builder orderCreated(OrderCreated orderCreated) {
         public OrderCreatedObject build() {
             return new OrderCreatedObject(orderCreated, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedCreatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedCreatedEvent.java
index bd45a1b8..0175b5fd 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedCreatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionOwnedCreatedEvent build() {
             return new OrderCustomAttributeDefinitionOwnedCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedDeletedEvent.java
index 1b2fd57d..5ce364c4 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionOwnedDeletedEvent build() {
             return new OrderCustomAttributeDefinitionOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedUpdatedEvent.java
index 949a53b1..b4a7f28d 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionOwnedUpdatedEvent build() {
             return new OrderCustomAttributeDefinitionOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleCreatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleCreatedEvent.java
index 6de6ac1a..6387e307 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleCreatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionVisibleCreatedEvent build() {
             return new OrderCustomAttributeDefinitionVisibleCreatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleDeletedEvent.java
index 52cc9dea..f60fd6cd 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionVisibleDeletedEvent build() {
             return new OrderCustomAttributeDefinitionVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleUpdatedEvent.java
index bfe3afd5..d445f141 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeDefinitionVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeDefinitionVisibleUpdatedEvent build() {
             return new OrderCustomAttributeDefinitionVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedDeletedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedDeletedEvent.java
index e24cabbd..c4bcd529 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedDeletedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeOwnedDeletedEvent build() {
             return new OrderCustomAttributeOwnedDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedUpdatedEvent.java
index f72ab252..3e2a3a43 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeOwnedUpdatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeOwnedUpdatedEvent build() {
             return new OrderCustomAttributeOwnedUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleDeletedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleDeletedEvent.java
index b094b53d..925d66c0 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleDeletedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeVisibleDeletedEvent build() {
             return new OrderCustomAttributeVisibleDeletedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleUpdatedEvent.java
index a9de4904..13624ab4 100644
--- a/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderCustomAttributeVisibleUpdatedEvent.java
@@ -284,5 +284,15 @@ public OrderCustomAttributeVisibleUpdatedEvent build() {
             return new OrderCustomAttributeVisibleUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderEntry.java b/src/main/java/com/squareup/square/types/OrderEntry.java
index d9b1c64f..6e79188d 100644
--- a/src/main/java/com/squareup/square/types/OrderEntry.java
+++ b/src/main/java/com/squareup/square/types/OrderEntry.java
@@ -206,5 +206,15 @@ public Builder locationId(Nullable<String> locationId) {
         public OrderEntry build() {
             return new OrderEntry(orderId, version, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdated.java b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdated.java
index fa59149b..0f24e526 100644
--- a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdated.java
+++ b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdated.java
@@ -359,5 +359,15 @@ public OrderFulfillmentUpdated build() {
             return new OrderFulfillmentUpdated(
                     orderId, version, locationId, state, createdAt, updatedAt, fulfillmentUpdate, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEvent.java
index 91387124..2814a9e6 100644
--- a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(OrderFulfillmentUpdatedEventData data) {
         public OrderFulfillmentUpdatedEvent build() {
             return new OrderFulfillmentUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEventData.java b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEventData.java
index 47a6ec26..7e9f2463 100644
--- a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(OrderFulfillmentUpdatedObject object) {
         public OrderFulfillmentUpdatedEventData build() {
             return new OrderFulfillmentUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedObject.java b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedObject.java
index 616d2425..13f8da37 100644
--- a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedObject.java
+++ b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedObject.java
@@ -98,5 +98,15 @@ public Builder orderFulfillmentUpdated(OrderFulfillmentUpdated orderFulfillmentU
         public OrderFulfillmentUpdatedObject build() {
             return new OrderFulfillmentUpdatedObject(orderFulfillmentUpdated, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedUpdate.java b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedUpdate.java
index d762d1c6..da255c77 100644
--- a/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedUpdate.java
+++ b/src/main/java/com/squareup/square/types/OrderFulfillmentUpdatedUpdate.java
@@ -186,5 +186,15 @@ public Builder newState(FulfillmentState newState) {
         public OrderFulfillmentUpdatedUpdate build() {
             return new OrderFulfillmentUpdatedUpdate(fulfillmentUid, oldState, newState, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItem.java b/src/main/java/com/squareup/square/types/OrderLineItem.java
index 58cc464b..a0ab33d3 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItem.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItem.java
@@ -532,6 +532,10 @@ public interface QuantityStage {
     public interface _FinalStage {
         OrderLineItem build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID that identifies the line item only within this order.</p>
          */
@@ -1588,5 +1592,17 @@ public OrderLineItem build() {
                     totalServiceChargeMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemAppliedDiscount.java b/src/main/java/com/squareup/square/types/OrderLineItemAppliedDiscount.java
index 57054f73..437d69b9 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemAppliedDiscount.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemAppliedDiscount.java
@@ -125,6 +125,10 @@ public interface DiscountUidStage {
     public interface _FinalStage {
         OrderLineItemAppliedDiscount build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID that identifies the applied discount only within this order.</p>
          */
@@ -241,5 +245,17 @@ public _FinalStage uid(Optional<String> uid) {
         public OrderLineItemAppliedDiscount build() {
             return new OrderLineItemAppliedDiscount(uid, discountUid, appliedMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemAppliedServiceCharge.java b/src/main/java/com/squareup/square/types/OrderLineItemAppliedServiceCharge.java
index 326fe013..7437f305 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemAppliedServiceCharge.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemAppliedServiceCharge.java
@@ -125,6 +125,10 @@ public interface ServiceChargeUidStage {
     public interface _FinalStage {
         OrderLineItemAppliedServiceCharge build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID that identifies the applied service charge only within this order.</p>
          */
@@ -241,5 +245,17 @@ public _FinalStage uid(Optional<String> uid) {
         public OrderLineItemAppliedServiceCharge build() {
             return new OrderLineItemAppliedServiceCharge(uid, serviceChargeUid, appliedMoney, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemAppliedTax.java b/src/main/java/com/squareup/square/types/OrderLineItemAppliedTax.java
index 99859982..8e7afaba 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemAppliedTax.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemAppliedTax.java
@@ -140,6 +140,10 @@ public interface TaxUidStage {
     public interface _FinalStage {
         OrderLineItemAppliedTax build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID that identifies the applied tax only within this order.</p>
          */
@@ -292,5 +296,17 @@ public _FinalStage uid(Optional<String> uid) {
         public OrderLineItemAppliedTax build() {
             return new OrderLineItemAppliedTax(uid, taxUid, appliedMoney, autoApplied, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemDiscount.java b/src/main/java/com/squareup/square/types/OrderLineItemDiscount.java
index 4495728e..5420713a 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemDiscount.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemDiscount.java
@@ -648,5 +648,15 @@ public OrderLineItemDiscount build() {
                     pricingRuleId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemModifier.java b/src/main/java/com/squareup/square/types/OrderLineItemModifier.java
index f5f8b3f9..bb97d418 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemModifier.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemModifier.java
@@ -493,5 +493,15 @@ public OrderLineItemModifier build() {
                     metadata,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklists.java b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklists.java
index a77923e3..500bda94 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklists.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklists.java
@@ -244,5 +244,15 @@ public OrderLineItemPricingBlocklists build() {
             return new OrderLineItemPricingBlocklists(
                     blockedDiscounts, blockedTaxes, blockedServiceCharges, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedDiscount.java b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedDiscount.java
index 695d3708..1d422fc3 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedDiscount.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedDiscount.java
@@ -230,5 +230,15 @@ public OrderLineItemPricingBlocklistsBlockedDiscount build() {
             return new OrderLineItemPricingBlocklistsBlockedDiscount(
                     uid, discountUid, discountCatalogObjectId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedServiceCharge.java b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedServiceCharge.java
index 03218792..3bd94fcc 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedServiceCharge.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedServiceCharge.java
@@ -232,5 +232,15 @@ public OrderLineItemPricingBlocklistsBlockedServiceCharge build() {
             return new OrderLineItemPricingBlocklistsBlockedServiceCharge(
                     uid, serviceChargeUid, serviceChargeCatalogObjectId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedTax.java b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedTax.java
index e8911ef0..c29e821c 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedTax.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemPricingBlocklistsBlockedTax.java
@@ -229,5 +229,15 @@ public Builder taxCatalogObjectId(Nullable<String> taxCatalogObjectId) {
         public OrderLineItemPricingBlocklistsBlockedTax build() {
             return new OrderLineItemPricingBlocklistsBlockedTax(uid, taxUid, taxCatalogObjectId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderLineItemTax.java b/src/main/java/com/squareup/square/types/OrderLineItemTax.java
index a31da648..8daa49e2 100644
--- a/src/main/java/com/squareup/square/types/OrderLineItemTax.java
+++ b/src/main/java/com/squareup/square/types/OrderLineItemTax.java
@@ -567,5 +567,15 @@ public OrderLineItemTax build() {
                     autoApplied,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderMoneyAmounts.java b/src/main/java/com/squareup/square/types/OrderMoneyAmounts.java
index cb574941..08145247 100644
--- a/src/main/java/com/squareup/square/types/OrderMoneyAmounts.java
+++ b/src/main/java/com/squareup/square/types/OrderMoneyAmounts.java
@@ -220,5 +220,15 @@ public OrderMoneyAmounts build() {
             return new OrderMoneyAmounts(
                     totalMoney, taxMoney, discountMoney, tipMoney, serviceChargeMoney, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderPricingOptions.java b/src/main/java/com/squareup/square/types/OrderPricingOptions.java
index e12586c6..fc6bccfc 100644
--- a/src/main/java/com/squareup/square/types/OrderPricingOptions.java
+++ b/src/main/java/com/squareup/square/types/OrderPricingOptions.java
@@ -175,5 +175,15 @@ public Builder autoApplyTaxes(Nullable<Boolean> autoApplyTaxes) {
         public OrderPricingOptions build() {
             return new OrderPricingOptions(autoApplyDiscounts, autoApplyTaxes, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderQuantityUnit.java b/src/main/java/com/squareup/square/types/OrderQuantityUnit.java
index f89a764c..20e34b28 100644
--- a/src/main/java/com/squareup/square/types/OrderQuantityUnit.java
+++ b/src/main/java/com/squareup/square/types/OrderQuantityUnit.java
@@ -267,5 +267,15 @@ public OrderQuantityUnit build() {
             return new OrderQuantityUnit(
                     measurementUnit, precision, catalogObjectId, catalogVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturn.java b/src/main/java/com/squareup/square/types/OrderReturn.java
index 064517f6..3586206c 100644
--- a/src/main/java/com/squareup/square/types/OrderReturn.java
+++ b/src/main/java/com/squareup/square/types/OrderReturn.java
@@ -516,5 +516,15 @@ public OrderReturn build() {
                     returnAmounts,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnDiscount.java b/src/main/java/com/squareup/square/types/OrderReturnDiscount.java
index f111dc94..7b968c6a 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnDiscount.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnDiscount.java
@@ -537,5 +537,15 @@ public OrderReturnDiscount build() {
                     scope,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnLineItem.java b/src/main/java/com/squareup/square/types/OrderReturnLineItem.java
index b90df7a5..f3d1d22e 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnLineItem.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnLineItem.java
@@ -484,6 +484,10 @@ public interface QuantityStage {
     public interface _FinalStage {
         OrderReturnLineItem build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID for this return line-item entry.</p>
          */
@@ -1392,5 +1396,17 @@ public OrderReturnLineItem build() {
                     totalServiceChargeMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnLineItemModifier.java b/src/main/java/com/squareup/square/types/OrderReturnLineItemModifier.java
index 2a039db1..480c562e 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnLineItemModifier.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnLineItemModifier.java
@@ -469,5 +469,15 @@ public OrderReturnLineItemModifier build() {
                     quantity,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnServiceCharge.java b/src/main/java/com/squareup/square/types/OrderReturnServiceCharge.java
index bb89e8a6..2592e827 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnServiceCharge.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnServiceCharge.java
@@ -804,5 +804,15 @@ public OrderReturnServiceCharge build() {
                     type,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnTax.java b/src/main/java/com/squareup/square/types/OrderReturnTax.java
index b5f90732..1dd5fbf4 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnTax.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnTax.java
@@ -493,5 +493,15 @@ public OrderReturnTax build() {
                     scope,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReturnTip.java b/src/main/java/com/squareup/square/types/OrderReturnTip.java
index 0810dee3..c5e7ed16 100644
--- a/src/main/java/com/squareup/square/types/OrderReturnTip.java
+++ b/src/main/java/com/squareup/square/types/OrderReturnTip.java
@@ -252,5 +252,15 @@ public Builder sourceTenderId(Nullable<String> sourceTenderId) {
         public OrderReturnTip build() {
             return new OrderReturnTip(uid, appliedMoney, sourceTenderUid, sourceTenderId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderReward.java b/src/main/java/com/squareup/square/types/OrderReward.java
index 0cf29765..3d2703a9 100644
--- a/src/main/java/com/squareup/square/types/OrderReward.java
+++ b/src/main/java/com/squareup/square/types/OrderReward.java
@@ -94,6 +94,10 @@ public interface RewardTierIdStage {
 
     public interface _FinalStage {
         OrderReward build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage rewardTierId(@NotNull String rewardTierId) {
         public OrderReward build() {
             return new OrderReward(id, rewardTierId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderRoundingAdjustment.java b/src/main/java/com/squareup/square/types/OrderRoundingAdjustment.java
index db773174..beba17c2 100644
--- a/src/main/java/com/squareup/square/types/OrderRoundingAdjustment.java
+++ b/src/main/java/com/squareup/square/types/OrderRoundingAdjustment.java
@@ -200,5 +200,15 @@ public Builder amountMoney(Money amountMoney) {
         public OrderRoundingAdjustment build() {
             return new OrderRoundingAdjustment(uid, name, amountMoney, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderServiceCharge.java b/src/main/java/com/squareup/square/types/OrderServiceCharge.java
index 5412d6c0..514951a7 100644
--- a/src/main/java/com/squareup/square/types/OrderServiceCharge.java
+++ b/src/main/java/com/squareup/square/types/OrderServiceCharge.java
@@ -838,5 +838,15 @@ public OrderServiceCharge build() {
                     scope,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderSource.java b/src/main/java/com/squareup/square/types/OrderSource.java
index 690518a6..fe2d06a9 100644
--- a/src/main/java/com/squareup/square/types/OrderSource.java
+++ b/src/main/java/com/squareup/square/types/OrderSource.java
@@ -122,5 +122,15 @@ public Builder name(Nullable<String> name) {
         public OrderSource build() {
             return new OrderSource(name, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderUpdated.java b/src/main/java/com/squareup/square/types/OrderUpdated.java
index a5f201d7..b0b4cffa 100644
--- a/src/main/java/com/squareup/square/types/OrderUpdated.java
+++ b/src/main/java/com/squareup/square/types/OrderUpdated.java
@@ -300,5 +300,15 @@ public Builder updatedAt(String updatedAt) {
         public OrderUpdated build() {
             return new OrderUpdated(orderId, version, locationId, state, createdAt, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderUpdatedEvent.java b/src/main/java/com/squareup/square/types/OrderUpdatedEvent.java
index c85dd94e..c3315939 100644
--- a/src/main/java/com/squareup/square/types/OrderUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/OrderUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(OrderUpdatedEventData data) {
         public OrderUpdatedEvent build() {
             return new OrderUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderUpdatedEventData.java b/src/main/java/com/squareup/square/types/OrderUpdatedEventData.java
index 4a8fdbb3..86e2ab13 100644
--- a/src/main/java/com/squareup/square/types/OrderUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/OrderUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(OrderUpdatedObject object) {
         public OrderUpdatedEventData build() {
             return new OrderUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/OrderUpdatedObject.java b/src/main/java/com/squareup/square/types/OrderUpdatedObject.java
index a32d4bfb..466d19da 100644
--- a/src/main/java/com/squareup/square/types/OrderUpdatedObject.java
+++ b/src/main/java/com/squareup/square/types/OrderUpdatedObject.java
@@ -97,5 +97,15 @@ public Builder orderUpdated(OrderUpdated orderUpdated) {
         public OrderUpdatedObject build() {
             return new OrderUpdatedObject(orderUpdated, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PauseSubscriptionRequest.java b/src/main/java/com/squareup/square/types/PauseSubscriptionRequest.java
index ebcae2fc..bb0c4833 100644
--- a/src/main/java/com/squareup/square/types/PauseSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/types/PauseSubscriptionRequest.java
@@ -199,6 +199,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         PauseSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <code>YYYY-MM-DD</code>-formatted date when the scheduled <code>PAUSE</code> action takes place on the subscription.</p>
          * <p>When this date is unspecified or falls within the current billing cycle, the subscription is paused
@@ -490,5 +494,17 @@ public PauseSubscriptionRequest build() {
                     pauseReason,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PauseSubscriptionResponse.java b/src/main/java/com/squareup/square/types/PauseSubscriptionResponse.java
index 4937e14c..f7a717d7 100644
--- a/src/main/java/com/squareup/square/types/PauseSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/PauseSubscriptionResponse.java
@@ -158,5 +158,15 @@ public Builder actions(List<SubscriptionAction> actions) {
         public PauseSubscriptionResponse build() {
             return new PauseSubscriptionResponse(errors, subscription, actions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayOrderRequest.java b/src/main/java/com/squareup/square/types/PayOrderRequest.java
index 87071a88..5ae37303 100644
--- a/src/main/java/com/squareup/square/types/PayOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/PayOrderRequest.java
@@ -156,6 +156,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         PayOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The version of the order being paid. If not supplied, the latest version will be paid.</p>
          */
@@ -309,5 +313,17 @@ public _FinalStage orderVersion(Optional<Integer> orderVersion) {
         public PayOrderRequest build() {
             return new PayOrderRequest(orderId, idempotencyKey, orderVersion, paymentIds, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayOrderResponse.java b/src/main/java/com/squareup/square/types/PayOrderResponse.java
index 09a8bdd1..1dca153e 100644
--- a/src/main/java/com/squareup/square/types/PayOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/PayOrderResponse.java
@@ -127,5 +127,15 @@ public Builder order(Order order) {
         public PayOrderResponse build() {
             return new PayOrderResponse(errors, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Payment.java b/src/main/java/com/squareup/square/types/Payment.java
index 23dc2e35..25d7a024 100644
--- a/src/main/java/com/squareup/square/types/Payment.java
+++ b/src/main/java/com/squareup/square/types/Payment.java
@@ -1688,5 +1688,15 @@ public Payment build() {
                     versionToken,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRefundDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRefundDetail.java
index 780261c9..7ec15af3 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRefundDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRefundDetail.java
@@ -223,5 +223,15 @@ public Builder locationId(Nullable<String> locationId) {
         public PaymentBalanceActivityAppFeeRefundDetail build() {
             return new PaymentBalanceActivityAppFeeRefundDetail(paymentId, refundId, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRevenueDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRevenueDetail.java
index e1997ab2..f6a38695 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRevenueDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAppFeeRevenueDetail.java
@@ -170,5 +170,15 @@ public Builder locationId(Nullable<String> locationId) {
         public PaymentBalanceActivityAppFeeRevenueDetail build() {
             return new PaymentBalanceActivityAppFeeRevenueDetail(paymentId, locationId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsDetail.java
index 42605771..54f43b0c 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsDetail.java
@@ -170,5 +170,15 @@ public Builder payoutId(Nullable<String> payoutId) {
         public PaymentBalanceActivityAutomaticSavingsDetail build() {
             return new PaymentBalanceActivityAutomaticSavingsDetail(paymentId, payoutId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsReversedDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsReversedDetail.java
index 31dbce39..1637b390 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsReversedDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityAutomaticSavingsReversedDetail.java
@@ -170,5 +170,15 @@ public Builder payoutId(Nullable<String> payoutId) {
         public PaymentBalanceActivityAutomaticSavingsReversedDetail build() {
             return new PaymentBalanceActivityAutomaticSavingsReversedDetail(paymentId, payoutId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityChargeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityChargeDetail.java
index 6b1c4c0c..74cf4f68 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityChargeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityChargeDetail.java
@@ -121,5 +121,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityChargeDetail build() {
             return new PaymentBalanceActivityChargeDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeDetail.java
index c2d166b4..5a703434 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeDetail.java
@@ -122,5 +122,15 @@ public Builder payoutId(Nullable<String> payoutId) {
         public PaymentBalanceActivityDepositFeeDetail build() {
             return new PaymentBalanceActivityDepositFeeDetail(payoutId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeReversedDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeReversedDetail.java
index c2fddc30..7fb8e20e 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeReversedDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDepositFeeReversedDetail.java
@@ -122,5 +122,15 @@ public Builder payoutId(Nullable<String> payoutId) {
         public PaymentBalanceActivityDepositFeeReversedDetail build() {
             return new PaymentBalanceActivityDepositFeeReversedDetail(payoutId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDisputeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDisputeDetail.java
index 1379d214..e17a28f8 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityDisputeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityDisputeDetail.java
@@ -170,5 +170,15 @@ public Builder disputeId(Nullable<String> disputeId) {
         public PaymentBalanceActivityDisputeDetail build() {
             return new PaymentBalanceActivityDisputeDetail(paymentId, disputeId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityFeeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityFeeDetail.java
index 44cda8b2..239d732c 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityFeeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityFeeDetail.java
@@ -126,5 +126,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityFeeDetail build() {
             return new PaymentBalanceActivityFeeDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityFreeProcessingDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityFreeProcessingDetail.java
index 4cc2ab76..b785f090 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityFreeProcessingDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityFreeProcessingDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityFreeProcessingDetail build() {
             return new PaymentBalanceActivityFreeProcessingDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityHoldAdjustmentDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityHoldAdjustmentDetail.java
index 3c315f4f..69358a17 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityHoldAdjustmentDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityHoldAdjustmentDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityHoldAdjustmentDetail build() {
             return new PaymentBalanceActivityHoldAdjustmentDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOpenDisputeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOpenDisputeDetail.java
index d5f30809..549baba0 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOpenDisputeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOpenDisputeDetail.java
@@ -170,5 +170,15 @@ public Builder disputeId(Nullable<String> disputeId) {
         public PaymentBalanceActivityOpenDisputeDetail build() {
             return new PaymentBalanceActivityOpenDisputeDetail(paymentId, disputeId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherAdjustmentDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherAdjustmentDetail.java
index 19f9b721..4d6150a0 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherAdjustmentDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherAdjustmentDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityOtherAdjustmentDetail build() {
             return new PaymentBalanceActivityOtherAdjustmentDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherDetail.java
index e5fe9750..263eeb7f 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityOtherDetail.java
@@ -120,5 +120,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityOtherDetail build() {
             return new PaymentBalanceActivityOtherDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityRefundDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityRefundDetail.java
index a3d55aa8..88d7e865 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityRefundDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityRefundDetail.java
@@ -170,5 +170,15 @@ public Builder refundId(Nullable<String> refundId) {
         public PaymentBalanceActivityRefundDetail build() {
             return new PaymentBalanceActivityRefundDetail(paymentId, refundId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReleaseAdjustmentDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReleaseAdjustmentDetail.java
index 408e4c9b..aeac9f83 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReleaseAdjustmentDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReleaseAdjustmentDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityReleaseAdjustmentDetail build() {
             return new PaymentBalanceActivityReleaseAdjustmentDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveHoldDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveHoldDetail.java
index 18816818..dd9688e5 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveHoldDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveHoldDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityReserveHoldDetail build() {
             return new PaymentBalanceActivityReserveHoldDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveReleaseDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveReleaseDetail.java
index 6025d0ba..f9092eae 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveReleaseDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityReserveReleaseDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityReserveReleaseDetail build() {
             return new PaymentBalanceActivityReserveReleaseDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalPaymentDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalPaymentDetail.java
index c9e31f76..7e052628 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalPaymentDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalPaymentDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivitySquareCapitalPaymentDetail build() {
             return new PaymentBalanceActivitySquareCapitalPaymentDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalReversedPaymentDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalReversedPaymentDetail.java
index 124ccb5b..b14dcda7 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalReversedPaymentDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquareCapitalReversedPaymentDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivitySquareCapitalReversedPaymentDetail build() {
             return new PaymentBalanceActivitySquareCapitalReversedPaymentDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferDetail.java
index eb9b581d..66983843 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivitySquarePayrollTransferDetail build() {
             return new PaymentBalanceActivitySquarePayrollTransferDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferReversedDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferReversedDetail.java
index 103c9219..e9f67f7a 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferReversedDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivitySquarePayrollTransferReversedDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivitySquarePayrollTransferReversedDetail build() {
             return new PaymentBalanceActivitySquarePayrollTransferReversedDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityTaxOnFeeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityTaxOnFeeDetail.java
index d7977e9d..b6a8441d 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityTaxOnFeeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityTaxOnFeeDetail.java
@@ -170,5 +170,15 @@ public Builder taxRateDescription(Nullable<String> taxRateDescription) {
         public PaymentBalanceActivityTaxOnFeeDetail build() {
             return new PaymentBalanceActivityTaxOnFeeDetail(paymentId, taxRateDescription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeDetail.java
index 9fbfa852..8f5917c1 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeDetail.java
@@ -122,5 +122,15 @@ public Builder paymentId(Nullable<String> paymentId) {
         public PaymentBalanceActivityThirdPartyFeeDetail build() {
             return new PaymentBalanceActivityThirdPartyFeeDetail(paymentId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeRefundDetail.java b/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeRefundDetail.java
index 9defc68f..bdce3a8d 100644
--- a/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeRefundDetail.java
+++ b/src/main/java/com/squareup/square/types/PaymentBalanceActivityThirdPartyFeeRefundDetail.java
@@ -170,5 +170,15 @@ public Builder refundId(Nullable<String> refundId) {
         public PaymentBalanceActivityThirdPartyFeeRefundDetail build() {
             return new PaymentBalanceActivityThirdPartyFeeRefundDetail(paymentId, refundId, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentCreatedEvent.java b/src/main/java/com/squareup/square/types/PaymentCreatedEvent.java
index 2aa315ad..5ad31be6 100644
--- a/src/main/java/com/squareup/square/types/PaymentCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/PaymentCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(PaymentCreatedEventData data) {
         public PaymentCreatedEvent build() {
             return new PaymentCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentCreatedEventData.java b/src/main/java/com/squareup/square/types/PaymentCreatedEventData.java
index ef942249..c94cadec 100644
--- a/src/main/java/com/squareup/square/types/PaymentCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/PaymentCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(PaymentCreatedEventObject object) {
         public PaymentCreatedEventData build() {
             return new PaymentCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentCreatedEventObject.java b/src/main/java/com/squareup/square/types/PaymentCreatedEventObject.java
index 824632a3..178b4ec5 100644
--- a/src/main/java/com/squareup/square/types/PaymentCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/PaymentCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder payment(Payment payment) {
         public PaymentCreatedEventObject build() {
             return new PaymentCreatedEventObject(payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentLink.java b/src/main/java/com/squareup/square/types/PaymentLink.java
index dd8d2235..8b73ab2a 100644
--- a/src/main/java/com/squareup/square/types/PaymentLink.java
+++ b/src/main/java/com/squareup/square/types/PaymentLink.java
@@ -246,6 +246,10 @@ public interface VersionStage {
     public interface _FinalStage {
         PaymentLink build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the payment link.</p>
          */
@@ -640,5 +644,17 @@ public PaymentLink build() {
                     paymentNote,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentLinkRelatedResources.java b/src/main/java/com/squareup/square/types/PaymentLinkRelatedResources.java
index 783b7ad3..a9b9da98 100644
--- a/src/main/java/com/squareup/square/types/PaymentLinkRelatedResources.java
+++ b/src/main/java/com/squareup/square/types/PaymentLinkRelatedResources.java
@@ -172,5 +172,15 @@ public Builder subscriptionPlans(Nullable<List<CatalogObject>> subscriptionPlans
         public PaymentLinkRelatedResources build() {
             return new PaymentLinkRelatedResources(orders, subscriptionPlans, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentOptions.java b/src/main/java/com/squareup/square/types/PaymentOptions.java
index 9b8428d1..3a112aef 100644
--- a/src/main/java/com/squareup/square/types/PaymentOptions.java
+++ b/src/main/java/com/squareup/square/types/PaymentOptions.java
@@ -299,5 +299,15 @@ public PaymentOptions build() {
             return new PaymentOptions(
                     autocomplete, delayDuration, acceptPartialAuthorization, delayAction, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentRefund.java b/src/main/java/com/squareup/square/types/PaymentRefund.java
index a8bd984c..4e8839ea 100644
--- a/src/main/java/com/squareup/square/types/PaymentRefund.java
+++ b/src/main/java/com/squareup/square/types/PaymentRefund.java
@@ -380,6 +380,10 @@ public interface AmountMoneyStage {
     public interface _FinalStage {
         PaymentRefund build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The refund's status:</p>
          * <ul>
@@ -1036,5 +1040,17 @@ public PaymentRefund build() {
                     terminalRefundId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentUpdatedEvent.java b/src/main/java/com/squareup/square/types/PaymentUpdatedEvent.java
index 034e7a86..0476c6f6 100644
--- a/src/main/java/com/squareup/square/types/PaymentUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/PaymentUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(PaymentUpdatedEventData data) {
         public PaymentUpdatedEvent build() {
             return new PaymentUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentUpdatedEventData.java b/src/main/java/com/squareup/square/types/PaymentUpdatedEventData.java
index c4a78f57..a1d6f499 100644
--- a/src/main/java/com/squareup/square/types/PaymentUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/PaymentUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(PaymentUpdatedEventObject object) {
         public PaymentUpdatedEventData build() {
             return new PaymentUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PaymentUpdatedEventObject.java b/src/main/java/com/squareup/square/types/PaymentUpdatedEventObject.java
index 44501465..4f370cf2 100644
--- a/src/main/java/com/squareup/square/types/PaymentUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/PaymentUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder payment(Payment payment) {
         public PaymentUpdatedEventObject build() {
             return new PaymentUpdatedEventObject(payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Payout.java b/src/main/java/com/squareup/square/types/Payout.java
index b9546bec..d971fb00 100644
--- a/src/main/java/com/squareup/square/types/Payout.java
+++ b/src/main/java/com/squareup/square/types/Payout.java
@@ -278,6 +278,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         Payout build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Indicates the payout status.
          * See <a href="#type-payoutstatus">PayoutStatus</a> for possible values</p>
@@ -704,5 +708,17 @@ public Payout build() {
                     endToEndId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutEntry.java b/src/main/java/com/squareup/square/types/PayoutEntry.java
index 7a7f6391..afb766d9 100644
--- a/src/main/java/com/squareup/square/types/PayoutEntry.java
+++ b/src/main/java/com/squareup/square/types/PayoutEntry.java
@@ -541,6 +541,10 @@ public interface PayoutIdStage {
     public interface _FinalStage {
         PayoutEntry build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The timestamp of when the payout entry affected the balance, in RFC 3339 format.</p>
          */
@@ -1612,5 +1616,17 @@ public PayoutEntry build() {
                     typeSquarePayrollTransferReversedDetails,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutFailedEvent.java b/src/main/java/com/squareup/square/types/PayoutFailedEvent.java
index 8e0bb1a7..727b584c 100644
--- a/src/main/java/com/squareup/square/types/PayoutFailedEvent.java
+++ b/src/main/java/com/squareup/square/types/PayoutFailedEvent.java
@@ -332,5 +332,15 @@ public Builder data(PayoutFailedEventData data) {
         public PayoutFailedEvent build() {
             return new PayoutFailedEvent(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutFailedEventData.java b/src/main/java/com/squareup/square/types/PayoutFailedEventData.java
index c9e2d420..049ff3fd 100644
--- a/src/main/java/com/squareup/square/types/PayoutFailedEventData.java
+++ b/src/main/java/com/squareup/square/types/PayoutFailedEventData.java
@@ -180,5 +180,15 @@ public Builder object(PayoutFailedEventObject object) {
         public PayoutFailedEventData build() {
             return new PayoutFailedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutFailedEventObject.java b/src/main/java/com/squareup/square/types/PayoutFailedEventObject.java
index 0335e677..96a14846 100644
--- a/src/main/java/com/squareup/square/types/PayoutFailedEventObject.java
+++ b/src/main/java/com/squareup/square/types/PayoutFailedEventObject.java
@@ -97,5 +97,15 @@ public Builder payout(Payout payout) {
         public PayoutFailedEventObject build() {
             return new PayoutFailedEventObject(payout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutFee.java b/src/main/java/com/squareup/square/types/PayoutFee.java
index fd770a04..d4b15849 100644
--- a/src/main/java/com/squareup/square/types/PayoutFee.java
+++ b/src/main/java/com/squareup/square/types/PayoutFee.java
@@ -184,5 +184,15 @@ public Builder type(PayoutFeeType type) {
         public PayoutFee build() {
             return new PayoutFee(amountMoney, effectiveAt, type, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutPaidEvent.java b/src/main/java/com/squareup/square/types/PayoutPaidEvent.java
index ba9a4efc..fb08a55b 100644
--- a/src/main/java/com/squareup/square/types/PayoutPaidEvent.java
+++ b/src/main/java/com/squareup/square/types/PayoutPaidEvent.java
@@ -332,5 +332,15 @@ public Builder data(PayoutPaidEventData data) {
         public PayoutPaidEvent build() {
             return new PayoutPaidEvent(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutPaidEventData.java b/src/main/java/com/squareup/square/types/PayoutPaidEventData.java
index 93ef268e..4bfde014 100644
--- a/src/main/java/com/squareup/square/types/PayoutPaidEventData.java
+++ b/src/main/java/com/squareup/square/types/PayoutPaidEventData.java
@@ -180,5 +180,15 @@ public Builder object(PayoutPaidEventObject object) {
         public PayoutPaidEventData build() {
             return new PayoutPaidEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutPaidEventObject.java b/src/main/java/com/squareup/square/types/PayoutPaidEventObject.java
index d9ed16a1..07f33115 100644
--- a/src/main/java/com/squareup/square/types/PayoutPaidEventObject.java
+++ b/src/main/java/com/squareup/square/types/PayoutPaidEventObject.java
@@ -97,5 +97,15 @@ public Builder payout(Payout payout) {
         public PayoutPaidEventObject build() {
             return new PayoutPaidEventObject(payout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutSentEvent.java b/src/main/java/com/squareup/square/types/PayoutSentEvent.java
index 74186cd8..69cbbcbf 100644
--- a/src/main/java/com/squareup/square/types/PayoutSentEvent.java
+++ b/src/main/java/com/squareup/square/types/PayoutSentEvent.java
@@ -332,5 +332,15 @@ public Builder data(PayoutSentEventData data) {
         public PayoutSentEvent build() {
             return new PayoutSentEvent(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutSentEventData.java b/src/main/java/com/squareup/square/types/PayoutSentEventData.java
index f8c7be0c..51fb0800 100644
--- a/src/main/java/com/squareup/square/types/PayoutSentEventData.java
+++ b/src/main/java/com/squareup/square/types/PayoutSentEventData.java
@@ -180,5 +180,15 @@ public Builder object(PayoutSentEventObject object) {
         public PayoutSentEventData build() {
             return new PayoutSentEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PayoutSentEventObject.java b/src/main/java/com/squareup/square/types/PayoutSentEventObject.java
index 34b51997..30bce496 100644
--- a/src/main/java/com/squareup/square/types/PayoutSentEventObject.java
+++ b/src/main/java/com/squareup/square/types/PayoutSentEventObject.java
@@ -97,5 +97,15 @@ public Builder payout(Payout payout) {
         public PayoutSentEventObject build() {
             return new PayoutSentEventObject(payout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Phase.java b/src/main/java/com/squareup/square/types/Phase.java
index 5329c339..be339fb7 100644
--- a/src/main/java/com/squareup/square/types/Phase.java
+++ b/src/main/java/com/squareup/square/types/Phase.java
@@ -272,5 +272,15 @@ public Builder planPhaseUid(Nullable<String> planPhaseUid) {
         public Phase build() {
             return new Phase(uid, ordinal, orderTemplateId, planPhaseUid, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PhaseInput.java b/src/main/java/com/squareup/square/types/PhaseInput.java
index 470e2d87..1783dcb3 100644
--- a/src/main/java/com/squareup/square/types/PhaseInput.java
+++ b/src/main/java/com/squareup/square/types/PhaseInput.java
@@ -101,6 +101,10 @@ public interface OrdinalStage {
     public interface _FinalStage {
         PhaseInput build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>id of order to be used in billing</p>
          */
@@ -181,5 +185,17 @@ public _FinalStage orderTemplateId(Optional<String> orderTemplateId) {
         public PhaseInput build() {
             return new PhaseInput(ordinal, orderTemplateId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PrePopulatedData.java b/src/main/java/com/squareup/square/types/PrePopulatedData.java
index b019cacd..9244ba99 100644
--- a/src/main/java/com/squareup/square/types/PrePopulatedData.java
+++ b/src/main/java/com/squareup/square/types/PrePopulatedData.java
@@ -202,5 +202,15 @@ public Builder buyerAddress(Address buyerAddress) {
         public PrePopulatedData build() {
             return new PrePopulatedData(buyerEmail, buyerPhoneNumber, buyerAddress, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ProcessingFee.java b/src/main/java/com/squareup/square/types/ProcessingFee.java
index 99b818d1..fa2fe40b 100644
--- a/src/main/java/com/squareup/square/types/ProcessingFee.java
+++ b/src/main/java/com/squareup/square/types/ProcessingFee.java
@@ -206,5 +206,15 @@ public Builder amountMoney(Money amountMoney) {
         public ProcessingFee build() {
             return new ProcessingFee(effectiveAt, type, amountMoney, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PublishInvoiceRequest.java b/src/main/java/com/squareup/square/types/PublishInvoiceRequest.java
index 24397818..f31c0f21 100644
--- a/src/main/java/com/squareup/square/types/PublishInvoiceRequest.java
+++ b/src/main/java/com/squareup/square/types/PublishInvoiceRequest.java
@@ -128,6 +128,10 @@ public interface VersionStage {
     public interface _FinalStage {
         PublishInvoiceRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies the <code>PublishInvoice</code> request. If you do not
          * provide <code>idempotency_key</code> (or provide an empty string as the value), the endpoint
@@ -237,5 +241,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public PublishInvoiceRequest build() {
             return new PublishInvoiceRequest(invoiceId, version, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PublishInvoiceResponse.java b/src/main/java/com/squareup/square/types/PublishInvoiceResponse.java
index c772db42..d2c74ed2 100644
--- a/src/main/java/com/squareup/square/types/PublishInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/PublishInvoiceResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public PublishInvoiceResponse build() {
             return new PublishInvoiceResponse(invoice, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PublishScheduledShiftRequest.java b/src/main/java/com/squareup/square/types/PublishScheduledShiftRequest.java
index 47220cd5..2bded8ea 100644
--- a/src/main/java/com/squareup/square/types/PublishScheduledShiftRequest.java
+++ b/src/main/java/com/squareup/square/types/PublishScheduledShiftRequest.java
@@ -135,6 +135,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         PublishScheduledShiftRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The current version of the scheduled shift, used to enable <a href="https://developer.squareup.com/docs/build-basics/common-api-patterns/optimistic-concurrency">optimistic concurrency</a>
          * control. If the provided version doesn't match the server version, the request fails.
@@ -263,5 +267,17 @@ public PublishScheduledShiftRequest build() {
             return new PublishScheduledShiftRequest(
                     id, idempotencyKey, version, scheduledShiftNotificationAudience, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/PublishScheduledShiftResponse.java b/src/main/java/com/squareup/square/types/PublishScheduledShiftResponse.java
index c5a3caa2..5ebc4a05 100644
--- a/src/main/java/com/squareup/square/types/PublishScheduledShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/PublishScheduledShiftResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public PublishScheduledShiftResponse build() {
             return new PublishScheduledShiftResponse(scheduledShift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/QrCodeOptions.java b/src/main/java/com/squareup/square/types/QrCodeOptions.java
index 03afcb39..b8d8cfdd 100644
--- a/src/main/java/com/squareup/square/types/QrCodeOptions.java
+++ b/src/main/java/com/squareup/square/types/QrCodeOptions.java
@@ -114,6 +114,10 @@ public interface BarcodeContentsStage {
 
     public interface _FinalStage {
         QrCodeOptions build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -179,5 +183,17 @@ public _FinalStage barcodeContents(@NotNull String barcodeContents) {
         public QrCodeOptions build() {
             return new QrCodeOptions(title, body, barcodeContents, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/QuickPay.java b/src/main/java/com/squareup/square/types/QuickPay.java
index 3a2c4432..9b17763b 100644
--- a/src/main/java/com/squareup/square/types/QuickPay.java
+++ b/src/main/java/com/squareup/square/types/QuickPay.java
@@ -112,6 +112,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         QuickPay build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -175,5 +179,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public QuickPay build() {
             return new QuickPay(name, priceMoney, locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Range.java b/src/main/java/com/squareup/square/types/Range.java
index 93ba1c38..cbaf2906 100644
--- a/src/main/java/com/squareup/square/types/Range.java
+++ b/src/main/java/com/squareup/square/types/Range.java
@@ -172,5 +172,15 @@ public Builder max(Nullable<String> max) {
         public Range build() {
             return new Range(min, max, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ReceiptOptions.java b/src/main/java/com/squareup/square/types/ReceiptOptions.java
index c9e49802..0179c59d 100644
--- a/src/main/java/com/squareup/square/types/ReceiptOptions.java
+++ b/src/main/java/com/squareup/square/types/ReceiptOptions.java
@@ -131,6 +131,10 @@ public interface PaymentIdStage {
     public interface _FinalStage {
         ReceiptOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Instructs the device to print the receipt without displaying the receipt selection screen.
          * Requires <code>printer_enabled</code> set to true.
@@ -271,5 +275,17 @@ public _FinalStage printOnly(Optional<Boolean> printOnly) {
         public ReceiptOptions build() {
             return new ReceiptOptions(paymentId, printOnly, isDuplicate, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ReceiveTransferOrderRequest.java b/src/main/java/com/squareup/square/types/ReceiveTransferOrderRequest.java
index af5807be..b5426460 100644
--- a/src/main/java/com/squareup/square/types/ReceiveTransferOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/ReceiveTransferOrderRequest.java
@@ -134,6 +134,10 @@ public interface ReceiptStage {
     public interface _FinalStage {
         ReceiveTransferOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Version for optimistic concurrency</p>
          */
@@ -227,5 +231,17 @@ public ReceiveTransferOrderRequest build() {
             return new ReceiveTransferOrderRequest(
                     transferOrderId, idempotencyKey, receipt, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ReceiveTransferOrderResponse.java b/src/main/java/com/squareup/square/types/ReceiveTransferOrderResponse.java
index 096ef3a5..a3f12c09 100644
--- a/src/main/java/com/squareup/square/types/ReceiveTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/ReceiveTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public ReceiveTransferOrderResponse build() {
             return new ReceiveTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RedeemLoyaltyRewardResponse.java b/src/main/java/com/squareup/square/types/RedeemLoyaltyRewardResponse.java
index f74e232a..9d75bf26 100644
--- a/src/main/java/com/squareup/square/types/RedeemLoyaltyRewardResponse.java
+++ b/src/main/java/com/squareup/square/types/RedeemLoyaltyRewardResponse.java
@@ -127,5 +127,15 @@ public Builder event(LoyaltyEvent event) {
         public RedeemLoyaltyRewardResponse build() {
             return new RedeemLoyaltyRewardResponse(errors, event, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Reference.java b/src/main/java/com/squareup/square/types/Reference.java
index 5f33591c..fa12ea7f 100644
--- a/src/main/java/com/squareup/square/types/Reference.java
+++ b/src/main/java/com/squareup/square/types/Reference.java
@@ -127,5 +127,15 @@ public Builder id(String id) {
         public Reference build() {
             return new Reference(type, id, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Refund.java b/src/main/java/com/squareup/square/types/Refund.java
index b044f814..33fd6469 100644
--- a/src/main/java/com/squareup/square/types/Refund.java
+++ b/src/main/java/com/squareup/square/types/Refund.java
@@ -272,6 +272,10 @@ public interface StatusStage {
     public interface _FinalStage {
         Refund build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The ID of the transaction that the refunded tender is part of.</p>
          */
@@ -588,5 +592,17 @@ public Refund build() {
                     additionalRecipients,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundCreatedEvent.java b/src/main/java/com/squareup/square/types/RefundCreatedEvent.java
index 18fb126c..862dda28 100644
--- a/src/main/java/com/squareup/square/types/RefundCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/RefundCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(RefundCreatedEventData data) {
         public RefundCreatedEvent build() {
             return new RefundCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundCreatedEventData.java b/src/main/java/com/squareup/square/types/RefundCreatedEventData.java
index e1443b95..935f2a02 100644
--- a/src/main/java/com/squareup/square/types/RefundCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/RefundCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(RefundCreatedEventObject object) {
         public RefundCreatedEventData build() {
             return new RefundCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundCreatedEventObject.java b/src/main/java/com/squareup/square/types/RefundCreatedEventObject.java
index d2475155..42914ccd 100644
--- a/src/main/java/com/squareup/square/types/RefundCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/RefundCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder refund(PaymentRefund refund) {
         public RefundCreatedEventObject build() {
             return new RefundCreatedEventObject(refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundPaymentRequest.java b/src/main/java/com/squareup/square/types/RefundPaymentRequest.java
index 6b36d37a..f519b476 100644
--- a/src/main/java/com/squareup/square/types/RefundPaymentRequest.java
+++ b/src/main/java/com/squareup/square/types/RefundPaymentRequest.java
@@ -378,6 +378,10 @@ public interface AmountMoneyStage {
     public interface _FinalStage {
         RefundPaymentRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The amount of money the developer contributes to help cover the refunded amount.
          * This amount is specified in the smallest denomination of the applicable currency (for example,
@@ -1022,5 +1026,17 @@ public RefundPaymentRequest build() {
                     externalDetails,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundPaymentResponse.java b/src/main/java/com/squareup/square/types/RefundPaymentResponse.java
index 2ee2aaef..e605f3e4 100644
--- a/src/main/java/com/squareup/square/types/RefundPaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/RefundPaymentResponse.java
@@ -127,5 +127,15 @@ public Builder refund(PaymentRefund refund) {
         public RefundPaymentResponse build() {
             return new RefundPaymentResponse(errors, refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundUpdatedEvent.java b/src/main/java/com/squareup/square/types/RefundUpdatedEvent.java
index 738fe40c..2092fbce 100644
--- a/src/main/java/com/squareup/square/types/RefundUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/RefundUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(RefundUpdatedEventData data) {
         public RefundUpdatedEvent build() {
             return new RefundUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundUpdatedEventData.java b/src/main/java/com/squareup/square/types/RefundUpdatedEventData.java
index d397c101..102c6682 100644
--- a/src/main/java/com/squareup/square/types/RefundUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/RefundUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(RefundUpdatedEventObject object) {
         public RefundUpdatedEventData build() {
             return new RefundUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RefundUpdatedEventObject.java b/src/main/java/com/squareup/square/types/RefundUpdatedEventObject.java
index c8f4c318..07e9e586 100644
--- a/src/main/java/com/squareup/square/types/RefundUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/RefundUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder refund(PaymentRefund refund) {
         public RefundUpdatedEventObject build() {
             return new RefundUpdatedEventObject(refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RegisterDomainRequest.java b/src/main/java/com/squareup/square/types/RegisterDomainRequest.java
index 182a6554..12a30685 100644
--- a/src/main/java/com/squareup/square/types/RegisterDomainRequest.java
+++ b/src/main/java/com/squareup/square/types/RegisterDomainRequest.java
@@ -76,6 +76,10 @@ public interface DomainNameStage {
 
     public interface _FinalStage {
         RegisterDomainRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage domainName(@NotNull String domainName) {
         public RegisterDomainRequest build() {
             return new RegisterDomainRequest(domainName, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RegisterDomainResponse.java b/src/main/java/com/squareup/square/types/RegisterDomainResponse.java
index 3f97f589..c1fa35eb 100644
--- a/src/main/java/com/squareup/square/types/RegisterDomainResponse.java
+++ b/src/main/java/com/squareup/square/types/RegisterDomainResponse.java
@@ -133,5 +133,15 @@ public Builder status(RegisterDomainResponseStatus status) {
         public RegisterDomainResponse build() {
             return new RegisterDomainResponse(errors, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RemoveGroupFromCustomerResponse.java b/src/main/java/com/squareup/square/types/RemoveGroupFromCustomerResponse.java
index 14fa1e37..1fc789f0 100644
--- a/src/main/java/com/squareup/square/types/RemoveGroupFromCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/RemoveGroupFromCustomerResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public RemoveGroupFromCustomerResponse build() {
             return new RemoveGroupFromCustomerResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ResumeSubscriptionRequest.java b/src/main/java/com/squareup/square/types/ResumeSubscriptionRequest.java
index 1b3e2b03..e986381e 100644
--- a/src/main/java/com/squareup/square/types/ResumeSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/types/ResumeSubscriptionRequest.java
@@ -121,6 +121,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         ResumeSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <code>YYYY-MM-DD</code>-formatted date when the subscription reactivated.</p>
          */
@@ -238,5 +242,17 @@ public ResumeSubscriptionRequest build() {
             return new ResumeSubscriptionRequest(
                     subscriptionId, resumeEffectiveDate, resumeChangeTiming, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ResumeSubscriptionResponse.java b/src/main/java/com/squareup/square/types/ResumeSubscriptionResponse.java
index 9e376832..ba835adf 100644
--- a/src/main/java/com/squareup/square/types/ResumeSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/ResumeSubscriptionResponse.java
@@ -158,5 +158,15 @@ public Builder actions(List<SubscriptionAction> actions) {
         public ResumeSubscriptionResponse build() {
             return new ResumeSubscriptionResponse(errors, subscription, actions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeDefinitionResponse.java
index acf429ef..67123966 100644
--- a/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public RetrieveBookingCustomAttributeDefinitionResponse build() {
             return new RetrieveBookingCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeResponse.java
index 388d7962..fc4b64b4 100644
--- a/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveBookingCustomAttributeResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveBookingCustomAttributeResponse build() {
             return new RetrieveBookingCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveChannelResponse.java b/src/main/java/com/squareup/square/types/RetrieveChannelResponse.java
index 3519b563..68b1e399 100644
--- a/src/main/java/com/squareup/square/types/RetrieveChannelResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveChannelResponse.java
@@ -127,5 +127,15 @@ public Builder channel(Channel channel) {
         public RetrieveChannelResponse build() {
             return new RetrieveChannelResponse(errors, channel, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveJobRequest.java b/src/main/java/com/squareup/square/types/RetrieveJobRequest.java
index 3ef799cf..d242ddfa 100644
--- a/src/main/java/com/squareup/square/types/RetrieveJobRequest.java
+++ b/src/main/java/com/squareup/square/types/RetrieveJobRequest.java
@@ -76,6 +76,10 @@ public interface JobIdStage {
 
     public interface _FinalStage {
         RetrieveJobRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage jobId(@NotNull String jobId) {
         public RetrieveJobRequest build() {
             return new RetrieveJobRequest(jobId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveJobResponse.java b/src/main/java/com/squareup/square/types/RetrieveJobResponse.java
index 5634a091..1f238968 100644
--- a/src/main/java/com/squareup/square/types/RetrieveJobResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveJobResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveJobResponse build() {
             return new RetrieveJobResponse(job, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileRequest.java b/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileRequest.java
index 8fd48967..49eca6b7 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileRequest.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileRequest.java
@@ -77,6 +77,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         RetrieveLocationBookingProfileRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public RetrieveLocationBookingProfileRequest build() {
             return new RetrieveLocationBookingProfileRequest(locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileResponse.java b/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileResponse.java
index 7982a96e..ac6cd91e 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationBookingProfileResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveLocationBookingProfileResponse build() {
             return new RetrieveLocationBookingProfileResponse(locationBookingProfile, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeDefinitionResponse.java
index 0b3a0c1d..f9f19e9f 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public RetrieveLocationCustomAttributeDefinitionResponse build() {
             return new RetrieveLocationCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeResponse.java
index fb40997a..f889af31 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationCustomAttributeResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveLocationCustomAttributeResponse build() {
             return new RetrieveLocationCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationSettingsRequest.java b/src/main/java/com/squareup/square/types/RetrieveLocationSettingsRequest.java
index e8828a0e..3b133820 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationSettingsRequest.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationSettingsRequest.java
@@ -76,6 +76,10 @@ public interface LocationIdStage {
 
     public interface _FinalStage {
         RetrieveLocationSettingsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage locationId(@NotNull String locationId) {
         public RetrieveLocationSettingsRequest build() {
             return new RetrieveLocationSettingsRequest(locationId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveLocationSettingsResponse.java b/src/main/java/com/squareup/square/types/RetrieveLocationSettingsResponse.java
index 3801434a..89853917 100644
--- a/src/main/java/com/squareup/square/types/RetrieveLocationSettingsResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveLocationSettingsResponse.java
@@ -129,5 +129,15 @@ public Builder locationSettings(CheckoutLocationSettings locationSettings) {
         public RetrieveLocationSettingsResponse build() {
             return new RetrieveLocationSettingsResponse(errors, locationSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeDefinitionResponse.java
index 0d8539af..fb12fc42 100644
--- a/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public RetrieveMerchantCustomAttributeDefinitionResponse build() {
             return new RetrieveMerchantCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeResponse.java
index 4ddbe012..34ebb808 100644
--- a/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveMerchantCustomAttributeResponse.java
@@ -132,5 +132,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveMerchantCustomAttributeResponse build() {
             return new RetrieveMerchantCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveMerchantSettingsResponse.java b/src/main/java/com/squareup/square/types/RetrieveMerchantSettingsResponse.java
index 24f13a46..622e0035 100644
--- a/src/main/java/com/squareup/square/types/RetrieveMerchantSettingsResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveMerchantSettingsResponse.java
@@ -129,5 +129,15 @@ public Builder merchantSettings(CheckoutMerchantSettings merchantSettings) {
         public RetrieveMerchantSettingsResponse build() {
             return new RetrieveMerchantSettingsResponse(errors, merchantSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeDefinitionResponse.java
index 240b4a2b..9ecb2d70 100644
--- a/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public RetrieveOrderCustomAttributeDefinitionResponse build() {
             return new RetrieveOrderCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeResponse.java
index aaa58c92..67815efd 100644
--- a/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveOrderCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveOrderCustomAttributeResponse build() {
             return new RetrieveOrderCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveScheduledShiftRequest.java b/src/main/java/com/squareup/square/types/RetrieveScheduledShiftRequest.java
index 09016128..83e02345 100644
--- a/src/main/java/com/squareup/square/types/RetrieveScheduledShiftRequest.java
+++ b/src/main/java/com/squareup/square/types/RetrieveScheduledShiftRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         RetrieveScheduledShiftRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public RetrieveScheduledShiftRequest build() {
             return new RetrieveScheduledShiftRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveScheduledShiftResponse.java b/src/main/java/com/squareup/square/types/RetrieveScheduledShiftResponse.java
index 2dac104d..b93e92e5 100644
--- a/src/main/java/com/squareup/square/types/RetrieveScheduledShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveScheduledShiftResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveScheduledShiftResponse build() {
             return new RetrieveScheduledShiftResponse(scheduledShift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveTimecardRequest.java b/src/main/java/com/squareup/square/types/RetrieveTimecardRequest.java
index cc36d5ec..5567a38d 100644
--- a/src/main/java/com/squareup/square/types/RetrieveTimecardRequest.java
+++ b/src/main/java/com/squareup/square/types/RetrieveTimecardRequest.java
@@ -76,6 +76,10 @@ public interface IdStage {
 
     public interface _FinalStage {
         RetrieveTimecardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage id(@NotNull String id) {
         public RetrieveTimecardRequest build() {
             return new RetrieveTimecardRequest(id, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveTimecardResponse.java b/src/main/java/com/squareup/square/types/RetrieveTimecardResponse.java
index a32e2493..e1dcc9f6 100644
--- a/src/main/java/com/squareup/square/types/RetrieveTimecardResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveTimecardResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveTimecardResponse build() {
             return new RetrieveTimecardResponse(timecard, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveTokenStatusResponse.java b/src/main/java/com/squareup/square/types/RetrieveTokenStatusResponse.java
index 17df1713..ca18e085 100644
--- a/src/main/java/com/squareup/square/types/RetrieveTokenStatusResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveTokenStatusResponse.java
@@ -221,5 +221,15 @@ public RetrieveTokenStatusResponse build() {
             return new RetrieveTokenStatusResponse(
                     scopes, expiresAt, clientId, merchantId, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RetrieveTransferOrderResponse.java b/src/main/java/com/squareup/square/types/RetrieveTransferOrderResponse.java
index c01efa96..069effba 100644
--- a/src/main/java/com/squareup/square/types/RetrieveTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/RetrieveTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public RetrieveTransferOrderResponse build() {
             return new RetrieveTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RevokeTokenRequest.java b/src/main/java/com/squareup/square/types/RevokeTokenRequest.java
index 594e138c..fc614568 100644
--- a/src/main/java/com/squareup/square/types/RevokeTokenRequest.java
+++ b/src/main/java/com/squareup/square/types/RevokeTokenRequest.java
@@ -283,5 +283,15 @@ public RevokeTokenRequest build() {
             return new RevokeTokenRequest(
                     clientId, accessToken, merchantId, revokeOnlyAccessToken, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RevokeTokenResponse.java b/src/main/java/com/squareup/square/types/RevokeTokenResponse.java
index f32053c0..0e4b4486 100644
--- a/src/main/java/com/squareup/square/types/RevokeTokenResponse.java
+++ b/src/main/java/com/squareup/square/types/RevokeTokenResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public RevokeTokenResponse build() {
             return new RevokeTokenResponse(success, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/RiskEvaluation.java b/src/main/java/com/squareup/square/types/RiskEvaluation.java
index 3e1a690b..f9cbf80e 100644
--- a/src/main/java/com/squareup/square/types/RiskEvaluation.java
+++ b/src/main/java/com/squareup/square/types/RiskEvaluation.java
@@ -130,5 +130,15 @@ public Builder riskLevel(RiskEvaluationRiskLevel riskLevel) {
         public RiskEvaluation build() {
             return new RiskEvaluation(createdAt, riskLevel, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SaveCardOptions.java b/src/main/java/com/squareup/square/types/SaveCardOptions.java
index 864df045..7811bc0e 100644
--- a/src/main/java/com/squareup/square/types/SaveCardOptions.java
+++ b/src/main/java/com/squareup/square/types/SaveCardOptions.java
@@ -121,6 +121,10 @@ public interface CustomerIdStage {
     public interface _FinalStage {
         SaveCardOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The id of the created card-on-file.</p>
          */
@@ -239,5 +243,17 @@ public _FinalStage cardId(Optional<String> cardId) {
         public SaveCardOptions build() {
             return new SaveCardOptions(customerId, cardId, referenceId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShift.java b/src/main/java/com/squareup/square/types/ScheduledShift.java
index dc53a600..3538c994 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShift.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShift.java
@@ -264,5 +264,15 @@ public ScheduledShift build() {
             return new ScheduledShift(
                     id, draftShiftDetails, publishedShiftDetails, version, createdAt, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShiftDetails.java b/src/main/java/com/squareup/square/types/ScheduledShiftDetails.java
index cd84f179..a86e28f9 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShiftDetails.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShiftDetails.java
@@ -475,5 +475,15 @@ public ScheduledShiftDetails build() {
             return new ScheduledShiftDetails(
                     teamMemberId, locationId, jobId, startAt, endAt, notes, isDeleted, timezone, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShiftFilter.java b/src/main/java/com/squareup/square/types/ScheduledShiftFilter.java
index f8ec85d5..a7f4a3bb 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShiftFilter.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShiftFilter.java
@@ -394,5 +394,15 @@ public ScheduledShiftFilter build() {
                     scheduledShiftStatuses,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShiftQuery.java b/src/main/java/com/squareup/square/types/ScheduledShiftQuery.java
index 5e9753eb..1a6e6f1d 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShiftQuery.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShiftQuery.java
@@ -128,5 +128,15 @@ public Builder sort(ScheduledShiftSort sort) {
         public ScheduledShiftQuery build() {
             return new ScheduledShiftQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShiftSort.java b/src/main/java/com/squareup/square/types/ScheduledShiftSort.java
index 1ac91b3b..7f2c9e51 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShiftSort.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShiftSort.java
@@ -132,5 +132,15 @@ public Builder order(SortOrder order) {
         public ScheduledShiftSort build() {
             return new ScheduledShiftSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ScheduledShiftWorkday.java b/src/main/java/com/squareup/square/types/ScheduledShiftWorkday.java
index 193ab803..3b5c26fc 100644
--- a/src/main/java/com/squareup/square/types/ScheduledShiftWorkday.java
+++ b/src/main/java/com/squareup/square/types/ScheduledShiftWorkday.java
@@ -190,5 +190,15 @@ public Builder defaultTimezone(Nullable<String> defaultTimezone) {
         public ScheduledShiftWorkday build() {
             return new ScheduledShiftWorkday(dateRange, matchScheduledShiftsBy, defaultTimezone, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchAvailabilityFilter.java b/src/main/java/com/squareup/square/types/SearchAvailabilityFilter.java
index 2bc34029..dfb4407b 100644
--- a/src/main/java/com/squareup/square/types/SearchAvailabilityFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchAvailabilityFilter.java
@@ -160,6 +160,10 @@ public interface StartAtRangeStage {
     public interface _FinalStage {
         SearchAvailabilityFilter build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The query expression to search for buyer-accessible availabilities with their location IDs matching the specified location ID.
          * This query expression cannot be set if <code>booking_id</code> is set.</p>
@@ -361,5 +365,17 @@ public SearchAvailabilityFilter build() {
             return new SearchAvailabilityFilter(
                     startAtRange, locationId, segmentFilters, bookingId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchAvailabilityQuery.java b/src/main/java/com/squareup/square/types/SearchAvailabilityQuery.java
index e9d094a7..ecc35e08 100644
--- a/src/main/java/com/squareup/square/types/SearchAvailabilityQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchAvailabilityQuery.java
@@ -76,6 +76,10 @@ public interface FilterStage {
 
     public interface _FinalStage {
         SearchAvailabilityQuery build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage filter(@NotNull SearchAvailabilityFilter filter) {
         public SearchAvailabilityQuery build() {
             return new SearchAvailabilityQuery(filter, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchAvailabilityRequest.java b/src/main/java/com/squareup/square/types/SearchAvailabilityRequest.java
index 485690e2..d88a4df6 100644
--- a/src/main/java/com/squareup/square/types/SearchAvailabilityRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchAvailabilityRequest.java
@@ -76,6 +76,10 @@ public interface QueryStage {
 
     public interface _FinalStage {
         SearchAvailabilityRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage query(@NotNull SearchAvailabilityQuery query) {
         public SearchAvailabilityRequest build() {
             return new SearchAvailabilityRequest(query, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchAvailabilityResponse.java b/src/main/java/com/squareup/square/types/SearchAvailabilityResponse.java
index c33b378e..bc18301d 100644
--- a/src/main/java/com/squareup/square/types/SearchAvailabilityResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchAvailabilityResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public SearchAvailabilityResponse build() {
             return new SearchAvailabilityResponse(availabilities, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCatalogItemsRequest.java b/src/main/java/com/squareup/square/types/SearchCatalogItemsRequest.java
index 9a213d75..d8fd4abc 100644
--- a/src/main/java/com/squareup/square/types/SearchCatalogItemsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchCatalogItemsRequest.java
@@ -403,5 +403,15 @@ public SearchCatalogItemsRequest build() {
                     archivedState,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCatalogItemsResponse.java b/src/main/java/com/squareup/square/types/SearchCatalogItemsResponse.java
index 0144fd15..4c0777e7 100644
--- a/src/main/java/com/squareup/square/types/SearchCatalogItemsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchCatalogItemsResponse.java
@@ -190,5 +190,15 @@ public Builder matchedVariationIds(List<String> matchedVariationIds) {
         public SearchCatalogItemsResponse build() {
             return new SearchCatalogItemsResponse(errors, items, cursor, matchedVariationIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCatalogObjectsRequest.java b/src/main/java/com/squareup/square/types/SearchCatalogObjectsRequest.java
index c1dd45b3..351aee14 100644
--- a/src/main/java/com/squareup/square/types/SearchCatalogObjectsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchCatalogObjectsRequest.java
@@ -379,5 +379,15 @@ public SearchCatalogObjectsRequest build() {
                     includeCategoryPathToRoot,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCatalogObjectsResponse.java b/src/main/java/com/squareup/square/types/SearchCatalogObjectsResponse.java
index e945b1c2..69f36e4b 100644
--- a/src/main/java/com/squareup/square/types/SearchCatalogObjectsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchCatalogObjectsResponse.java
@@ -225,5 +225,15 @@ public SearchCatalogObjectsResponse build() {
             return new SearchCatalogObjectsResponse(
                     errors, cursor, objects, relatedObjects, latestTime, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCustomersRequest.java b/src/main/java/com/squareup/square/types/SearchCustomersRequest.java
index 4f4b811e..44b47b1f 100644
--- a/src/main/java/com/squareup/square/types/SearchCustomersRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchCustomersRequest.java
@@ -201,5 +201,15 @@ public Builder count(Boolean count) {
         public SearchCustomersRequest build() {
             return new SearchCustomersRequest(cursor, limit, query, count, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchCustomersResponse.java b/src/main/java/com/squareup/square/types/SearchCustomersResponse.java
index 586d4db3..b844d8ff 100644
--- a/src/main/java/com/squareup/square/types/SearchCustomersResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchCustomersResponse.java
@@ -206,5 +206,15 @@ public Builder count(Long count) {
         public SearchCustomersResponse build() {
             return new SearchCustomersResponse(errors, customers, cursor, count, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchEventsFilter.java b/src/main/java/com/squareup/square/types/SearchEventsFilter.java
index d44ca7ec..1000e70b 100644
--- a/src/main/java/com/squareup/square/types/SearchEventsFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchEventsFilter.java
@@ -253,5 +253,15 @@ public Builder createdAt(TimeRange createdAt) {
         public SearchEventsFilter build() {
             return new SearchEventsFilter(eventTypes, merchantIds, locationIds, createdAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchEventsQuery.java b/src/main/java/com/squareup/square/types/SearchEventsQuery.java
index dd62d00d..7e37366e 100644
--- a/src/main/java/com/squareup/square/types/SearchEventsQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchEventsQuery.java
@@ -128,5 +128,15 @@ public Builder sort(SearchEventsSort sort) {
         public SearchEventsQuery build() {
             return new SearchEventsQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchEventsRequest.java b/src/main/java/com/squareup/square/types/SearchEventsRequest.java
index d0a4481e..c50c75db 100644
--- a/src/main/java/com/squareup/square/types/SearchEventsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchEventsRequest.java
@@ -163,5 +163,15 @@ public Builder query(SearchEventsQuery query) {
         public SearchEventsRequest build() {
             return new SearchEventsRequest(cursor, limit, query, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchEventsResponse.java b/src/main/java/com/squareup/square/types/SearchEventsResponse.java
index faecaddb..44db4c42 100644
--- a/src/main/java/com/squareup/square/types/SearchEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchEventsResponse.java
@@ -192,5 +192,15 @@ public Builder cursor(String cursor) {
         public SearchEventsResponse build() {
             return new SearchEventsResponse(errors, events, metadata, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchEventsSort.java b/src/main/java/com/squareup/square/types/SearchEventsSort.java
index f5118329..d99b6ca2 100644
--- a/src/main/java/com/squareup/square/types/SearchEventsSort.java
+++ b/src/main/java/com/squareup/square/types/SearchEventsSort.java
@@ -130,5 +130,15 @@ public Builder order(SortOrder order) {
         public SearchEventsSort build() {
             return new SearchEventsSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchInvoicesRequest.java b/src/main/java/com/squareup/square/types/SearchInvoicesRequest.java
index 77ec2e77..2cada5d9 100644
--- a/src/main/java/com/squareup/square/types/SearchInvoicesRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchInvoicesRequest.java
@@ -108,6 +108,10 @@ public interface QueryStage {
     public interface _FinalStage {
         SearchInvoicesRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The maximum number of invoices to return (200 is the maximum <code>limit</code>).
          * If not provided, the server uses a default limit of 100 invoices.</p>
@@ -209,5 +213,17 @@ public _FinalStage limit(Optional<Integer> limit) {
         public SearchInvoicesRequest build() {
             return new SearchInvoicesRequest(query, limit, cursor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchInvoicesResponse.java b/src/main/java/com/squareup/square/types/SearchInvoicesResponse.java
index 7469016c..f9faecb2 100644
--- a/src/main/java/com/squareup/square/types/SearchInvoicesResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchInvoicesResponse.java
@@ -164,5 +164,15 @@ public Builder errors(List<Error> errors) {
         public SearchInvoicesResponse build() {
             return new SearchInvoicesResponse(invoices, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsRequestLoyaltyAccountQuery.java b/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsRequestLoyaltyAccountQuery.java
index 96753c2e..7ed22a58 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsRequestLoyaltyAccountQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsRequestLoyaltyAccountQuery.java
@@ -181,5 +181,15 @@ public Builder customerIds(Nullable<List<String>> customerIds) {
         public SearchLoyaltyAccountsRequestLoyaltyAccountQuery build() {
             return new SearchLoyaltyAccountsRequestLoyaltyAccountQuery(mappings, customerIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsResponse.java b/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsResponse.java
index f0e0acb8..a0dae7fb 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyAccountsResponse.java
@@ -168,5 +168,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyAccountsResponse build() {
             return new SearchLoyaltyAccountsResponse(errors, loyaltyAccounts, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyEventsRequest.java b/src/main/java/com/squareup/square/types/SearchLoyaltyEventsRequest.java
index 85f06274..aec4efec 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyEventsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyEventsRequest.java
@@ -171,5 +171,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyEventsRequest build() {
             return new SearchLoyaltyEventsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyEventsResponse.java b/src/main/java/com/squareup/square/types/SearchLoyaltyEventsResponse.java
index 941ec5f4..8d61efbf 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyEventsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyEventsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyEventsResponse build() {
             return new SearchLoyaltyEventsResponse(errors, events, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsRequestLoyaltyRewardQuery.java b/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsRequestLoyaltyRewardQuery.java
index d4e6e5d2..9a26d16e 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsRequestLoyaltyRewardQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsRequestLoyaltyRewardQuery.java
@@ -93,6 +93,10 @@ public interface LoyaltyAccountIdStage {
     public interface _FinalStage {
         SearchLoyaltyRewardsRequestLoyaltyRewardQuery build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The status of the loyalty reward.
          * See <a href="#type-loyaltyrewardstatus">LoyaltyRewardStatus</a> for possible values</p>
@@ -158,5 +162,17 @@ public _FinalStage status(Optional<LoyaltyRewardStatus> status) {
         public SearchLoyaltyRewardsRequestLoyaltyRewardQuery build() {
             return new SearchLoyaltyRewardsRequestLoyaltyRewardQuery(loyaltyAccountId, status, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsResponse.java b/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsResponse.java
index 4fca19cf..73783abb 100644
--- a/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchLoyaltyRewardsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public SearchLoyaltyRewardsResponse build() {
             return new SearchLoyaltyRewardsResponse(errors, rewards, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersCustomerFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersCustomerFilter.java
index 162088ea..94c3fa87 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersCustomerFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersCustomerFilter.java
@@ -123,5 +123,15 @@ public Builder customerIds(Nullable<List<String>> customerIds) {
         public SearchOrdersCustomerFilter build() {
             return new SearchOrdersCustomerFilter(customerIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersDateTimeFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersDateTimeFilter.java
index e1c52d7a..f460cdab 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersDateTimeFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersDateTimeFilter.java
@@ -171,5 +171,15 @@ public Builder closedAt(TimeRange closedAt) {
         public SearchOrdersDateTimeFilter build() {
             return new SearchOrdersDateTimeFilter(createdAt, updatedAt, closedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersFilter.java
index 7291964b..1b252448 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersFilter.java
@@ -227,5 +227,15 @@ public SearchOrdersFilter build() {
             return new SearchOrdersFilter(
                     stateFilter, dateTimeFilter, fulfillmentFilter, sourceFilter, customerFilter, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersFulfillmentFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersFulfillmentFilter.java
index 605c44de..fe782c46 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersFulfillmentFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersFulfillmentFilter.java
@@ -184,5 +184,15 @@ public Builder fulfillmentStates(Nullable<List<FulfillmentState>> fulfillmentSta
         public SearchOrdersFulfillmentFilter build() {
             return new SearchOrdersFulfillmentFilter(fulfillmentTypes, fulfillmentStates, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersQuery.java b/src/main/java/com/squareup/square/types/SearchOrdersQuery.java
index 53048bf8..a9c8d223 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersQuery.java
@@ -128,5 +128,15 @@ public Builder sort(SearchOrdersSort sort) {
         public SearchOrdersQuery build() {
             return new SearchOrdersQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersRequest.java b/src/main/java/com/squareup/square/types/SearchOrdersRequest.java
index 0c83373e..4f2b2ca7 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersRequest.java
@@ -240,5 +240,15 @@ public Builder returnEntries(Boolean returnEntries) {
         public SearchOrdersRequest build() {
             return new SearchOrdersRequest(locationIds, cursor, query, limit, returnEntries, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersResponse.java b/src/main/java/com/squareup/square/types/SearchOrdersResponse.java
index ed2ac47a..de152793 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersResponse.java
@@ -200,5 +200,15 @@ public Builder errors(List<Error> errors) {
         public SearchOrdersResponse build() {
             return new SearchOrdersResponse(orderEntries, orders, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersSort.java b/src/main/java/com/squareup/square/types/SearchOrdersSort.java
index b515c384..eb7d30e1 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersSort.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersSort.java
@@ -108,6 +108,10 @@ public interface SortFieldStage {
     public interface _FinalStage {
         SearchOrdersSort build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The chronological order in which results are returned. Defaults to <code>DESC</code>.
          * See <a href="#type-sortorder">SortOrder</a> for possible values</p>
@@ -189,5 +193,17 @@ public _FinalStage sortOrder(Optional<SortOrder> sortOrder) {
         public SearchOrdersSort build() {
             return new SearchOrdersSort(sortField, sortOrder, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersSourceFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersSourceFilter.java
index d89b2aab..e335cc1e 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersSourceFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersSourceFilter.java
@@ -236,5 +236,15 @@ public SearchOrdersSourceFilter build() {
             return new SearchOrdersSourceFilter(
                     sourceNames, sourceApplicationIds, sourceClientOus, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchOrdersStateFilter.java b/src/main/java/com/squareup/square/types/SearchOrdersStateFilter.java
index 914f1669..8146f7fb 100644
--- a/src/main/java/com/squareup/square/types/SearchOrdersStateFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchOrdersStateFilter.java
@@ -110,5 +110,15 @@ public Builder addAllStates(List<OrderState> states) {
         public SearchOrdersStateFilter build() {
             return new SearchOrdersStateFilter(states, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchScheduledShiftsRequest.java b/src/main/java/com/squareup/square/types/SearchScheduledShiftsRequest.java
index c5515c41..aa3dd814 100644
--- a/src/main/java/com/squareup/square/types/SearchScheduledShiftsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchScheduledShiftsRequest.java
@@ -161,5 +161,15 @@ public Builder cursor(String cursor) {
         public SearchScheduledShiftsRequest build() {
             return new SearchScheduledShiftsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchScheduledShiftsResponse.java b/src/main/java/com/squareup/square/types/SearchScheduledShiftsResponse.java
index f5a3c336..cdda8906 100644
--- a/src/main/java/com/squareup/square/types/SearchScheduledShiftsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchScheduledShiftsResponse.java
@@ -162,5 +162,15 @@ public Builder errors(List<Error> errors) {
         public SearchScheduledShiftsResponse build() {
             return new SearchScheduledShiftsResponse(scheduledShifts, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchShiftsResponse.java b/src/main/java/com/squareup/square/types/SearchShiftsResponse.java
index 9b72038e..c05b88f8 100644
--- a/src/main/java/com/squareup/square/types/SearchShiftsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchShiftsResponse.java
@@ -158,5 +158,15 @@ public Builder errors(List<Error> errors) {
         public SearchShiftsResponse build() {
             return new SearchShiftsResponse(shifts, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchSubscriptionsFilter.java b/src/main/java/com/squareup/square/types/SearchSubscriptionsFilter.java
index fe0ff768..311c5f1b 100644
--- a/src/main/java/com/squareup/square/types/SearchSubscriptionsFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchSubscriptionsFilter.java
@@ -223,5 +223,15 @@ public Builder sourceNames(Nullable<List<String>> sourceNames) {
         public SearchSubscriptionsFilter build() {
             return new SearchSubscriptionsFilter(customerIds, locationIds, sourceNames, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchSubscriptionsQuery.java b/src/main/java/com/squareup/square/types/SearchSubscriptionsQuery.java
index f2f8694c..170ffeae 100644
--- a/src/main/java/com/squareup/square/types/SearchSubscriptionsQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchSubscriptionsQuery.java
@@ -98,5 +98,15 @@ public Builder filter(SearchSubscriptionsFilter filter) {
         public SearchSubscriptionsQuery build() {
             return new SearchSubscriptionsQuery(filter, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchSubscriptionsRequest.java b/src/main/java/com/squareup/square/types/SearchSubscriptionsRequest.java
index fca48083..67529603 100644
--- a/src/main/java/com/squareup/square/types/SearchSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchSubscriptionsRequest.java
@@ -208,5 +208,15 @@ public Builder include(List<String> include) {
         public SearchSubscriptionsRequest build() {
             return new SearchSubscriptionsRequest(cursor, limit, query, include, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchSubscriptionsResponse.java b/src/main/java/com/squareup/square/types/SearchSubscriptionsResponse.java
index 55348c73..f97f99cb 100644
--- a/src/main/java/com/squareup/square/types/SearchSubscriptionsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchSubscriptionsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public SearchSubscriptionsResponse build() {
             return new SearchSubscriptionsResponse(errors, subscriptions, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTeamMembersFilter.java b/src/main/java/com/squareup/square/types/SearchTeamMembersFilter.java
index b94b23ff..b8324a05 100644
--- a/src/main/java/com/squareup/square/types/SearchTeamMembersFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchTeamMembersFilter.java
@@ -207,5 +207,15 @@ public Builder isOwner(Nullable<Boolean> isOwner) {
         public SearchTeamMembersFilter build() {
             return new SearchTeamMembersFilter(locationIds, status, isOwner, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTeamMembersQuery.java b/src/main/java/com/squareup/square/types/SearchTeamMembersQuery.java
index 10592375..935444ac 100644
--- a/src/main/java/com/squareup/square/types/SearchTeamMembersQuery.java
+++ b/src/main/java/com/squareup/square/types/SearchTeamMembersQuery.java
@@ -97,5 +97,15 @@ public Builder filter(SearchTeamMembersFilter filter) {
         public SearchTeamMembersQuery build() {
             return new SearchTeamMembersQuery(filter, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTeamMembersRequest.java b/src/main/java/com/squareup/square/types/SearchTeamMembersRequest.java
index 8c822c5e..ed5cedba 100644
--- a/src/main/java/com/squareup/square/types/SearchTeamMembersRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchTeamMembersRequest.java
@@ -159,5 +159,15 @@ public Builder cursor(String cursor) {
         public SearchTeamMembersRequest build() {
             return new SearchTeamMembersRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTeamMembersResponse.java b/src/main/java/com/squareup/square/types/SearchTeamMembersResponse.java
index 0b40bc0d..588fa10d 100644
--- a/src/main/java/com/squareup/square/types/SearchTeamMembersResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTeamMembersResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public SearchTeamMembersResponse build() {
             return new SearchTeamMembersResponse(teamMembers, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTerminalActionsResponse.java b/src/main/java/com/squareup/square/types/SearchTerminalActionsResponse.java
index 016a4b9e..ffc85b45 100644
--- a/src/main/java/com/squareup/square/types/SearchTerminalActionsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTerminalActionsResponse.java
@@ -164,5 +164,15 @@ public Builder cursor(String cursor) {
         public SearchTerminalActionsResponse build() {
             return new SearchTerminalActionsResponse(errors, action, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTerminalCheckoutsResponse.java b/src/main/java/com/squareup/square/types/SearchTerminalCheckoutsResponse.java
index 3e612b7a..37ec23f7 100644
--- a/src/main/java/com/squareup/square/types/SearchTerminalCheckoutsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTerminalCheckoutsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public SearchTerminalCheckoutsResponse build() {
             return new SearchTerminalCheckoutsResponse(errors, checkouts, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTerminalRefundsResponse.java b/src/main/java/com/squareup/square/types/SearchTerminalRefundsResponse.java
index 543934ac..82ff712c 100644
--- a/src/main/java/com/squareup/square/types/SearchTerminalRefundsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTerminalRefundsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public SearchTerminalRefundsResponse build() {
             return new SearchTerminalRefundsResponse(errors, refunds, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTimecardsRequest.java b/src/main/java/com/squareup/square/types/SearchTimecardsRequest.java
index 7ef7bf75..51228bd2 100644
--- a/src/main/java/com/squareup/square/types/SearchTimecardsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchTimecardsRequest.java
@@ -157,5 +157,15 @@ public Builder cursor(String cursor) {
         public SearchTimecardsRequest build() {
             return new SearchTimecardsRequest(query, limit, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTimecardsResponse.java b/src/main/java/com/squareup/square/types/SearchTimecardsResponse.java
index d9636771..d7c9bee4 100644
--- a/src/main/java/com/squareup/square/types/SearchTimecardsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTimecardsResponse.java
@@ -158,5 +158,15 @@ public Builder errors(List<Error> errors) {
         public SearchTimecardsResponse build() {
             return new SearchTimecardsResponse(timecards, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTransferOrdersRequest.java b/src/main/java/com/squareup/square/types/SearchTransferOrdersRequest.java
index 3f5bc659..776db905 100644
--- a/src/main/java/com/squareup/square/types/SearchTransferOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchTransferOrdersRequest.java
@@ -157,5 +157,15 @@ public Builder limit(Integer limit) {
         public SearchTransferOrdersRequest build() {
             return new SearchTransferOrdersRequest(query, cursor, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchTransferOrdersResponse.java b/src/main/java/com/squareup/square/types/SearchTransferOrdersResponse.java
index fbda5b4d..ddb32a10 100644
--- a/src/main/java/com/squareup/square/types/SearchTransferOrdersResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchTransferOrdersResponse.java
@@ -160,5 +160,15 @@ public Builder errors(List<Error> errors) {
         public SearchTransferOrdersResponse build() {
             return new SearchTransferOrdersResponse(transferOrders, cursor, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchVendorsRequest.java b/src/main/java/com/squareup/square/types/SearchVendorsRequest.java
index b9a05546..2dbeaf0f 100644
--- a/src/main/java/com/squareup/square/types/SearchVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/SearchVendorsRequest.java
@@ -161,5 +161,15 @@ public Builder cursor(String cursor) {
         public SearchVendorsRequest build() {
             return new SearchVendorsRequest(filter, sort, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchVendorsRequestFilter.java b/src/main/java/com/squareup/square/types/SearchVendorsRequestFilter.java
index e769cc9f..f997eb80 100644
--- a/src/main/java/com/squareup/square/types/SearchVendorsRequestFilter.java
+++ b/src/main/java/com/squareup/square/types/SearchVendorsRequestFilter.java
@@ -174,5 +174,15 @@ public Builder status(Nullable<List<VendorStatus>> status) {
         public SearchVendorsRequestFilter build() {
             return new SearchVendorsRequestFilter(name, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchVendorsRequestSort.java b/src/main/java/com/squareup/square/types/SearchVendorsRequestSort.java
index 46866d55..a9e4a953 100644
--- a/src/main/java/com/squareup/square/types/SearchVendorsRequestSort.java
+++ b/src/main/java/com/squareup/square/types/SearchVendorsRequestSort.java
@@ -132,5 +132,15 @@ public Builder order(SortOrder order) {
         public SearchVendorsRequestSort build() {
             return new SearchVendorsRequestSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SearchVendorsResponse.java b/src/main/java/com/squareup/square/types/SearchVendorsResponse.java
index 3f1b377d..d1e744f8 100644
--- a/src/main/java/com/squareup/square/types/SearchVendorsResponse.java
+++ b/src/main/java/com/squareup/square/types/SearchVendorsResponse.java
@@ -162,5 +162,15 @@ public Builder cursor(String cursor) {
         public SearchVendorsResponse build() {
             return new SearchVendorsResponse(errors, vendors, cursor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SegmentFilter.java b/src/main/java/com/squareup/square/types/SegmentFilter.java
index 3dcbcace..2eb1941c 100644
--- a/src/main/java/com/squareup/square/types/SegmentFilter.java
+++ b/src/main/java/com/squareup/square/types/SegmentFilter.java
@@ -100,6 +100,10 @@ public interface ServiceVariationIdStage {
     public interface _FinalStage {
         SegmentFilter build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A query filter to search for buyer-accessible appointment segments with service-providing team members matching the specified list of team member IDs.  Supported query expressions are</p>
          * <ul>
@@ -180,5 +184,17 @@ public _FinalStage teamMemberIdFilter(Optional<FilterValue> teamMemberIdFilter)
         public SegmentFilter build() {
             return new SegmentFilter(serviceVariationId, teamMemberIdFilter, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SelectOption.java b/src/main/java/com/squareup/square/types/SelectOption.java
index 77b5e6c2..97e1cfde 100644
--- a/src/main/java/com/squareup/square/types/SelectOption.java
+++ b/src/main/java/com/squareup/square/types/SelectOption.java
@@ -94,6 +94,10 @@ public interface TitleStage {
 
     public interface _FinalStage {
         SelectOption build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage title(@NotNull String title) {
         public SelectOption build() {
             return new SelectOption(referenceId, title, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SelectOptions.java b/src/main/java/com/squareup/square/types/SelectOptions.java
index 5a352e1d..fe5cf4c0 100644
--- a/src/main/java/com/squareup/square/types/SelectOptions.java
+++ b/src/main/java/com/squareup/square/types/SelectOptions.java
@@ -129,6 +129,10 @@ public interface BodyStage {
     public interface _FinalStage {
         SelectOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Represents the buttons/options that should be displayed in the select flow on the Terminal.</p>
          */
@@ -253,5 +257,17 @@ public _FinalStage options(List<SelectOption> options) {
         public SelectOptions build() {
             return new SelectOptions(title, body, options, selectedOption, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Shift.java b/src/main/java/com/squareup/square/types/Shift.java
index 6adb56da..49437954 100644
--- a/src/main/java/com/squareup/square/types/Shift.java
+++ b/src/main/java/com/squareup/square/types/Shift.java
@@ -333,6 +333,10 @@ public interface StartAtStage {
     public interface _FinalStage {
         Shift build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The UUID for this object.</p>
          */
@@ -879,5 +883,17 @@ public Shift build() {
                     declaredCashTipMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShiftFilter.java b/src/main/java/com/squareup/square/types/ShiftFilter.java
index 46fbab5c..29864eb9 100644
--- a/src/main/java/com/squareup/square/types/ShiftFilter.java
+++ b/src/main/java/com/squareup/square/types/ShiftFilter.java
@@ -353,5 +353,15 @@ public ShiftFilter build() {
             return new ShiftFilter(
                     locationIds, employeeIds, status, start, end, workday, teamMemberIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShiftQuery.java b/src/main/java/com/squareup/square/types/ShiftQuery.java
index d8068d90..710f851d 100644
--- a/src/main/java/com/squareup/square/types/ShiftQuery.java
+++ b/src/main/java/com/squareup/square/types/ShiftQuery.java
@@ -126,5 +126,15 @@ public Builder sort(ShiftSort sort) {
         public ShiftQuery build() {
             return new ShiftQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShiftSort.java b/src/main/java/com/squareup/square/types/ShiftSort.java
index fba2086c..5e426ff9 100644
--- a/src/main/java/com/squareup/square/types/ShiftSort.java
+++ b/src/main/java/com/squareup/square/types/ShiftSort.java
@@ -130,5 +130,15 @@ public Builder order(SortOrder order) {
         public ShiftSort build() {
             return new ShiftSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShiftWage.java b/src/main/java/com/squareup/square/types/ShiftWage.java
index 73d52bbc..ff222592 100644
--- a/src/main/java/com/squareup/square/types/ShiftWage.java
+++ b/src/main/java/com/squareup/square/types/ShiftWage.java
@@ -236,5 +236,15 @@ public Builder tipEligible(Nullable<Boolean> tipEligible) {
         public ShiftWage build() {
             return new ShiftWage(title, hourlyRate, jobId, tipEligible, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShiftWorkday.java b/src/main/java/com/squareup/square/types/ShiftWorkday.java
index 5eb11b0b..06d04231 100644
--- a/src/main/java/com/squareup/square/types/ShiftWorkday.java
+++ b/src/main/java/com/squareup/square/types/ShiftWorkday.java
@@ -190,5 +190,15 @@ public Builder defaultTimezone(Nullable<String> defaultTimezone) {
         public ShiftWorkday build() {
             return new ShiftWorkday(dateRange, matchShiftsBy, defaultTimezone, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/ShippingFee.java b/src/main/java/com/squareup/square/types/ShippingFee.java
index 43b84c0c..adc960e6 100644
--- a/src/main/java/com/squareup/square/types/ShippingFee.java
+++ b/src/main/java/com/squareup/square/types/ShippingFee.java
@@ -102,6 +102,10 @@ public interface ChargeStage {
     public interface _FinalStage {
         ShippingFee build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The name for the shipping fee.</p>
          */
@@ -182,5 +186,17 @@ public _FinalStage name(Optional<String> name) {
         public ShippingFee build() {
             return new ShippingFee(name, charge, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SignatureImage.java b/src/main/java/com/squareup/square/types/SignatureImage.java
index 0beaa008..e774f826 100644
--- a/src/main/java/com/squareup/square/types/SignatureImage.java
+++ b/src/main/java/com/squareup/square/types/SignatureImage.java
@@ -128,5 +128,15 @@ public Builder data(String data) {
         public SignatureImage build() {
             return new SignatureImage(imageType, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SignatureOptions.java b/src/main/java/com/squareup/square/types/SignatureOptions.java
index 0fe8c995..954ff30b 100644
--- a/src/main/java/com/squareup/square/types/SignatureOptions.java
+++ b/src/main/java/com/squareup/square/types/SignatureOptions.java
@@ -113,6 +113,10 @@ public interface BodyStage {
     public interface _FinalStage {
         SignatureOptions build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>An image representation of the collected signature.</p>
          */
@@ -190,5 +194,17 @@ public _FinalStage signature(Optional<List<SignatureImage>> signature) {
         public SignatureOptions build() {
             return new SignatureOptions(title, body, signature, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Site.java b/src/main/java/com/squareup/square/types/Site.java
index 593c666f..3c2c6000 100644
--- a/src/main/java/com/squareup/square/types/Site.java
+++ b/src/main/java/com/squareup/square/types/Site.java
@@ -312,5 +312,15 @@ public Builder updatedAt(String updatedAt) {
         public Site build() {
             return new Site(id, siteTitle, domain, isPublished, createdAt, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Snippet.java b/src/main/java/com/squareup/square/types/Snippet.java
index aac85b59..7d6c4b79 100644
--- a/src/main/java/com/squareup/square/types/Snippet.java
+++ b/src/main/java/com/squareup/square/types/Snippet.java
@@ -133,6 +133,10 @@ public interface ContentStage {
     public interface _FinalStage {
         Snippet build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID for the snippet.</p>
          */
@@ -285,5 +289,17 @@ public _FinalStage id(Optional<String> id) {
         public Snippet build() {
             return new Snippet(id, siteId, content, createdAt, updatedAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SourceApplication.java b/src/main/java/com/squareup/square/types/SourceApplication.java
index b84fa78b..2d834409 100644
--- a/src/main/java/com/squareup/square/types/SourceApplication.java
+++ b/src/main/java/com/squareup/square/types/SourceApplication.java
@@ -206,5 +206,15 @@ public Builder name(Nullable<String> name) {
         public SourceApplication build() {
             return new SourceApplication(product, applicationId, name, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SquareAccountDetails.java b/src/main/java/com/squareup/square/types/SquareAccountDetails.java
index 31c9994f..9de0d0d9 100644
--- a/src/main/java/com/squareup/square/types/SquareAccountDetails.java
+++ b/src/main/java/com/squareup/square/types/SquareAccountDetails.java
@@ -172,5 +172,15 @@ public Builder errors(Nullable<List<Error>> errors) {
         public SquareAccountDetails build() {
             return new SquareAccountDetails(paymentSourceToken, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/StandardUnitDescription.java b/src/main/java/com/squareup/square/types/StandardUnitDescription.java
index 90ebcd6d..2660d205 100644
--- a/src/main/java/com/squareup/square/types/StandardUnitDescription.java
+++ b/src/main/java/com/squareup/square/types/StandardUnitDescription.java
@@ -200,5 +200,15 @@ public Builder abbreviation(Nullable<String> abbreviation) {
         public StandardUnitDescription build() {
             return new StandardUnitDescription(unit, name, abbreviation, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/StandardUnitDescriptionGroup.java b/src/main/java/com/squareup/square/types/StandardUnitDescriptionGroup.java
index a822345d..7d892c83 100644
--- a/src/main/java/com/squareup/square/types/StandardUnitDescriptionGroup.java
+++ b/src/main/java/com/squareup/square/types/StandardUnitDescriptionGroup.java
@@ -173,5 +173,15 @@ public Builder languageCode(Nullable<String> languageCode) {
         public StandardUnitDescriptionGroup build() {
             return new StandardUnitDescriptionGroup(standardUnitDescriptions, languageCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/StartTransferOrderRequest.java b/src/main/java/com/squareup/square/types/StartTransferOrderRequest.java
index 00797a50..42deb204 100644
--- a/src/main/java/com/squareup/square/types/StartTransferOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/StartTransferOrderRequest.java
@@ -116,6 +116,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         StartTransferOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Version for optimistic concurrency</p>
          */
@@ -195,5 +199,17 @@ public _FinalStage version(Optional<Long> version) {
         public StartTransferOrderRequest build() {
             return new StartTransferOrderRequest(transferOrderId, idempotencyKey, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/StartTransferOrderResponse.java b/src/main/java/com/squareup/square/types/StartTransferOrderResponse.java
index 17517fa3..328ce689 100644
--- a/src/main/java/com/squareup/square/types/StartTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/StartTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public StartTransferOrderResponse build() {
             return new StartTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubmitEvidenceDisputesRequest.java b/src/main/java/com/squareup/square/types/SubmitEvidenceDisputesRequest.java
index adff5d44..4a7a40a4 100644
--- a/src/main/java/com/squareup/square/types/SubmitEvidenceDisputesRequest.java
+++ b/src/main/java/com/squareup/square/types/SubmitEvidenceDisputesRequest.java
@@ -76,6 +76,10 @@ public interface DisputeIdStage {
 
     public interface _FinalStage {
         SubmitEvidenceDisputesRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage disputeId(@NotNull String disputeId) {
         public SubmitEvidenceDisputesRequest build() {
             return new SubmitEvidenceDisputesRequest(disputeId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubmitEvidenceResponse.java b/src/main/java/com/squareup/square/types/SubmitEvidenceResponse.java
index acad67e8..1277c5ac 100644
--- a/src/main/java/com/squareup/square/types/SubmitEvidenceResponse.java
+++ b/src/main/java/com/squareup/square/types/SubmitEvidenceResponse.java
@@ -127,5 +127,15 @@ public Builder dispute(Dispute dispute) {
         public SubmitEvidenceResponse build() {
             return new SubmitEvidenceResponse(errors, dispute, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Subscription.java b/src/main/java/com/squareup/square/types/Subscription.java
index a7068d72..e37980b9 100644
--- a/src/main/java/com/squareup/square/types/Subscription.java
+++ b/src/main/java/com/squareup/square/types/Subscription.java
@@ -868,5 +868,15 @@ public Subscription build() {
                     completedDate,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionAction.java b/src/main/java/com/squareup/square/types/SubscriptionAction.java
index 88010ff6..7e66dd14 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionAction.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionAction.java
@@ -348,5 +348,15 @@ public SubscriptionAction build() {
                     newPlanVariationId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionCreatedEvent.java b/src/main/java/com/squareup/square/types/SubscriptionCreatedEvent.java
index 2f18508a..60eb915f 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(SubscriptionCreatedEventData data) {
         public SubscriptionCreatedEvent build() {
             return new SubscriptionCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionCreatedEventData.java b/src/main/java/com/squareup/square/types/SubscriptionCreatedEventData.java
index c4f226cf..d93f704d 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(SubscriptionCreatedEventObject object) {
         public SubscriptionCreatedEventData build() {
             return new SubscriptionCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionCreatedEventObject.java b/src/main/java/com/squareup/square/types/SubscriptionCreatedEventObject.java
index e5d11a13..353c99be 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder subscription(Subscription subscription) {
         public SubscriptionCreatedEventObject build() {
             return new SubscriptionCreatedEventObject(subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionEvent.java b/src/main/java/com/squareup/square/types/SubscriptionEvent.java
index 9c376085..2358a7ca 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionEvent.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionEvent.java
@@ -202,6 +202,10 @@ public interface PlanVariationIdStage {
     public interface _FinalStage {
         SubscriptionEvent build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The day-of-the-month the billing anchor date was changed to, if applicable.</p>
          */
@@ -400,5 +404,17 @@ public SubscriptionEvent build() {
                     planVariationId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionEventInfo.java b/src/main/java/com/squareup/square/types/SubscriptionEventInfo.java
index 54127334..5a1b0b64 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionEventInfo.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionEventInfo.java
@@ -153,5 +153,15 @@ public Builder code(SubscriptionEventInfoCode code) {
         public SubscriptionEventInfo build() {
             return new SubscriptionEventInfo(detail, code, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionPhase.java b/src/main/java/com/squareup/square/types/SubscriptionPhase.java
index 8a022ec5..aa506e35 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionPhase.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionPhase.java
@@ -178,6 +178,10 @@ public interface CadenceStage {
     public interface _FinalStage {
         SubscriptionPhase build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The Square-assigned ID of the subscription phase. This field cannot be changed after a <code>SubscriptionPhase</code> is created.</p>
          */
@@ -417,5 +421,17 @@ public SubscriptionPhase build() {
             return new SubscriptionPhase(
                     uid, cadence, periods, recurringPriceMoney, ordinal, pricing, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionPricing.java b/src/main/java/com/squareup/square/types/SubscriptionPricing.java
index 444fe482..90dfc87e 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionPricing.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionPricing.java
@@ -183,5 +183,15 @@ public Builder priceMoney(Money priceMoney) {
         public SubscriptionPricing build() {
             return new SubscriptionPricing(type, discountIds, priceMoney, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionSource.java b/src/main/java/com/squareup/square/types/SubscriptionSource.java
index 2480465a..e7a8a99d 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionSource.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionSource.java
@@ -124,5 +124,15 @@ public Builder name(Nullable<String> name) {
         public SubscriptionSource build() {
             return new SubscriptionSource(name, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionTestResult.java b/src/main/java/com/squareup/square/types/SubscriptionTestResult.java
index 4e8d09fd..e7233727 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionTestResult.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionTestResult.java
@@ -354,5 +354,15 @@ public SubscriptionTestResult build() {
             return new SubscriptionTestResult(
                     id, statusCode, payload, createdAt, updatedAt, notificationUrl, passesFilter, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEvent.java b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEvent.java
index ecc88381..daeafa3b 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(SubscriptionUpdatedEventData data) {
         public SubscriptionUpdatedEvent build() {
             return new SubscriptionUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventData.java b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventData.java
index eb9a8766..71755596 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(SubscriptionUpdatedEventObject object) {
         public SubscriptionUpdatedEventData build() {
             return new SubscriptionUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventObject.java b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventObject.java
index 74806ebf..afab5aad 100644
--- a/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/SubscriptionUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder subscription(Subscription subscription) {
         public SubscriptionUpdatedEventObject build() {
             return new SubscriptionUpdatedEventObject(subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SwapPlanRequest.java b/src/main/java/com/squareup/square/types/SwapPlanRequest.java
index 9a94cacf..678cd828 100644
--- a/src/main/java/com/squareup/square/types/SwapPlanRequest.java
+++ b/src/main/java/com/squareup/square/types/SwapPlanRequest.java
@@ -130,6 +130,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         SwapPlanRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The ID of the new subscription plan variation.</p>
          * <p>This field is required.</p>
@@ -262,5 +266,17 @@ public _FinalStage newPlanVariationId(Optional<String> newPlanVariationId) {
         public SwapPlanRequest build() {
             return new SwapPlanRequest(subscriptionId, newPlanVariationId, phases, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/SwapPlanResponse.java b/src/main/java/com/squareup/square/types/SwapPlanResponse.java
index 6339faf1..993e8ed4 100644
--- a/src/main/java/com/squareup/square/types/SwapPlanResponse.java
+++ b/src/main/java/com/squareup/square/types/SwapPlanResponse.java
@@ -158,5 +158,15 @@ public Builder actions(List<SubscriptionAction> actions) {
         public SwapPlanResponse build() {
             return new SwapPlanResponse(errors, subscription, actions, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TaxIds.java b/src/main/java/com/squareup/square/types/TaxIds.java
index 0b0d78dc..789e26a8 100644
--- a/src/main/java/com/squareup/square/types/TaxIds.java
+++ b/src/main/java/com/squareup/square/types/TaxIds.java
@@ -233,5 +233,15 @@ public Builder jpQii(String jpQii) {
         public TaxIds build() {
             return new TaxIds(euVat, frSiret, frNaf, esNif, jpQii, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMember.java b/src/main/java/com/squareup/square/types/TeamMember.java
index 5cc99e7c..6efcb8b8 100644
--- a/src/main/java/com/squareup/square/types/TeamMember.java
+++ b/src/main/java/com/squareup/square/types/TeamMember.java
@@ -565,5 +565,15 @@ public TeamMember build() {
                     wageSetting,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberAssignedLocations.java b/src/main/java/com/squareup/square/types/TeamMemberAssignedLocations.java
index f5166767..fefd4f8a 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberAssignedLocations.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberAssignedLocations.java
@@ -154,5 +154,15 @@ public Builder locationIds(Nullable<List<String>> locationIds) {
         public TeamMemberAssignedLocations build() {
             return new TeamMemberAssignedLocations(assignmentType, locationIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberBookingProfile.java b/src/main/java/com/squareup/square/types/TeamMemberBookingProfile.java
index c79c8a50..81d98b85 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberBookingProfile.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberBookingProfile.java
@@ -244,5 +244,15 @@ public TeamMemberBookingProfile build() {
             return new TeamMemberBookingProfile(
                     teamMemberId, description, displayName, isBookable, profileImageUrl, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberCreatedEvent.java b/src/main/java/com/squareup/square/types/TeamMemberCreatedEvent.java
index 7575196c..248c5026 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TeamMemberCreatedEventData data) {
         public TeamMemberCreatedEvent build() {
             return new TeamMemberCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberCreatedEventData.java b/src/main/java/com/squareup/square/types/TeamMemberCreatedEventData.java
index 3f382a17..1d5b7cf4 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TeamMemberCreatedEventObject object) {
         public TeamMemberCreatedEventData build() {
             return new TeamMemberCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberCreatedEventObject.java b/src/main/java/com/squareup/square/types/TeamMemberCreatedEventObject.java
index b0c3f366..0356034c 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberCreatedEventObject.java
@@ -97,5 +97,15 @@ public Builder teamMember(TeamMember teamMember) {
         public TeamMemberCreatedEventObject build() {
             return new TeamMemberCreatedEventObject(teamMember, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEvent.java b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEvent.java
index 9b4e8369..cadaa887 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TeamMemberUpdatedEventData data) {
         public TeamMemberUpdatedEvent build() {
             return new TeamMemberUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventData.java b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventData.java
index a391d10e..3c332e14 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TeamMemberUpdatedEventObject object) {
         public TeamMemberUpdatedEventData build() {
             return new TeamMemberUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventObject.java
index 51e01c73..69bc133f 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberUpdatedEventObject.java
@@ -97,5 +97,15 @@ public Builder teamMember(TeamMember teamMember) {
         public TeamMemberUpdatedEventObject build() {
             return new TeamMemberUpdatedEventObject(teamMember, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberWage.java b/src/main/java/com/squareup/square/types/TeamMemberWage.java
index 432d714a..58733ff3 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberWage.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberWage.java
@@ -334,5 +334,15 @@ public Builder tipEligible(Nullable<Boolean> tipEligible) {
         public TeamMemberWage build() {
             return new TeamMemberWage(id, teamMemberId, title, hourlyRate, jobId, tipEligible, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEvent.java b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEvent.java
index a1929c05..389aef66 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEvent.java
@@ -283,5 +283,15 @@ public TeamMemberWageSettingUpdatedEvent build() {
             return new TeamMemberWageSettingUpdatedEvent(
                     merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventData.java b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventData.java
index e569fd7d..260a0382 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventData.java
@@ -181,5 +181,15 @@ public Builder object(TeamMemberWageSettingUpdatedEventObject object) {
         public TeamMemberWageSettingUpdatedEventData build() {
             return new TeamMemberWageSettingUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventObject.java
index 6394d9aa..e0fa2de8 100644
--- a/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TeamMemberWageSettingUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder wageSetting(WageSetting wageSetting) {
         public TeamMemberWageSettingUpdatedEventObject build() {
             return new TeamMemberWageSettingUpdatedEventObject(wageSetting, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Tender.java b/src/main/java/com/squareup/square/types/Tender.java
index 5842d825..2ff311ff 100644
--- a/src/main/java/com/squareup/square/types/Tender.java
+++ b/src/main/java/com/squareup/square/types/Tender.java
@@ -378,6 +378,10 @@ public interface TypeStage {
     public interface _FinalStage {
         Tender build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The tender's unique ID. It is the associated payment ID.</p>
          */
@@ -1057,5 +1061,17 @@ public Tender build() {
                     paymentId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TenderBankAccountDetails.java b/src/main/java/com/squareup/square/types/TenderBankAccountDetails.java
index adc9fa5d..bad5c757 100644
--- a/src/main/java/com/squareup/square/types/TenderBankAccountDetails.java
+++ b/src/main/java/com/squareup/square/types/TenderBankAccountDetails.java
@@ -102,5 +102,15 @@ public Builder status(TenderBankAccountDetailsStatus status) {
         public TenderBankAccountDetails build() {
             return new TenderBankAccountDetails(status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TenderBuyNowPayLaterDetails.java b/src/main/java/com/squareup/square/types/TenderBuyNowPayLaterDetails.java
index 79688389..80cae3d5 100644
--- a/src/main/java/com/squareup/square/types/TenderBuyNowPayLaterDetails.java
+++ b/src/main/java/com/squareup/square/types/TenderBuyNowPayLaterDetails.java
@@ -136,5 +136,15 @@ public Builder status(TenderBuyNowPayLaterDetailsStatus status) {
         public TenderBuyNowPayLaterDetails build() {
             return new TenderBuyNowPayLaterDetails(buyNowPayLaterBrand, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TenderCardDetails.java b/src/main/java/com/squareup/square/types/TenderCardDetails.java
index 4f75c8e0..c6bcffc0 100644
--- a/src/main/java/com/squareup/square/types/TenderCardDetails.java
+++ b/src/main/java/com/squareup/square/types/TenderCardDetails.java
@@ -165,5 +165,15 @@ public Builder entryMethod(TenderCardDetailsEntryMethod entryMethod) {
         public TenderCardDetails build() {
             return new TenderCardDetails(status, card, entryMethod, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TenderCashDetails.java b/src/main/java/com/squareup/square/types/TenderCashDetails.java
index 76d79a77..78426940 100644
--- a/src/main/java/com/squareup/square/types/TenderCashDetails.java
+++ b/src/main/java/com/squareup/square/types/TenderCashDetails.java
@@ -128,5 +128,15 @@ public Builder changeBackMoney(Money changeBackMoney) {
         public TenderCashDetails build() {
             return new TenderCashDetails(buyerTenderedMoney, changeBackMoney, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TenderSquareAccountDetails.java b/src/main/java/com/squareup/square/types/TenderSquareAccountDetails.java
index 98ba43b7..9f3c9006 100644
--- a/src/main/java/com/squareup/square/types/TenderSquareAccountDetails.java
+++ b/src/main/java/com/squareup/square/types/TenderSquareAccountDetails.java
@@ -104,5 +104,15 @@ public Builder status(TenderSquareAccountDetailsStatus status) {
         public TenderSquareAccountDetails build() {
             return new TenderSquareAccountDetails(status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalAction.java b/src/main/java/com/squareup/square/types/TerminalAction.java
index 71afd708..fe59c113 100644
--- a/src/main/java/com/squareup/square/types/TerminalAction.java
+++ b/src/main/java/com/squareup/square/types/TerminalAction.java
@@ -823,5 +823,15 @@ public TerminalAction build() {
                     awaitNextActionDuration,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionCreatedEvent.java b/src/main/java/com/squareup/square/types/TerminalActionCreatedEvent.java
index b996106a..8118ff33 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalActionCreatedEventData data) {
         public TerminalActionCreatedEvent build() {
             return new TerminalActionCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionCreatedEventData.java b/src/main/java/com/squareup/square/types/TerminalActionCreatedEventData.java
index 9c5293cf..05ffb707 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalActionCreatedEventObject object) {
         public TerminalActionCreatedEventData build() {
             return new TerminalActionCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionCreatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalActionCreatedEventObject.java
index 700e5b2d..2bf81d2f 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder action(TerminalAction action) {
         public TerminalActionCreatedEventObject build() {
             return new TerminalActionCreatedEventObject(action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionQuery.java b/src/main/java/com/squareup/square/types/TerminalActionQuery.java
index d5a2859d..06d051d1 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionQuery.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionQuery.java
@@ -128,5 +128,15 @@ public Builder sort(TerminalActionQuerySort sort) {
         public TerminalActionQuery build() {
             return new TerminalActionQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionQueryFilter.java b/src/main/java/com/squareup/square/types/TerminalActionQueryFilter.java
index 5a8d5194..781affca 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionQueryFilter.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionQueryFilter.java
@@ -242,5 +242,15 @@ public Builder type(TerminalActionActionType type) {
         public TerminalActionQueryFilter build() {
             return new TerminalActionQueryFilter(deviceId, createdAt, status, type, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionQuerySort.java b/src/main/java/com/squareup/square/types/TerminalActionQuerySort.java
index 219978a6..52aebddb 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionQuerySort.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionQuerySort.java
@@ -107,5 +107,15 @@ public Builder sortOrder(SortOrder sortOrder) {
         public TerminalActionQuerySort build() {
             return new TerminalActionQuerySort(sortOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEvent.java b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEvent.java
index d76fbaf3..c6e858ec 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalActionUpdatedEventData data) {
         public TerminalActionUpdatedEvent build() {
             return new TerminalActionUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventData.java b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventData.java
index 1f02391d..ba741d20 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalActionUpdatedEventObject object) {
         public TerminalActionUpdatedEventData build() {
             return new TerminalActionUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventObject.java
index 5d1bc95b..f68bf253 100644
--- a/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalActionUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder action(TerminalAction action) {
         public TerminalActionUpdatedEventObject build() {
             return new TerminalActionUpdatedEventObject(action, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckout.java b/src/main/java/com/squareup/square/types/TerminalCheckout.java
index aed2ee91..70c6fe87 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckout.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckout.java
@@ -456,6 +456,10 @@ public interface DeviceOptionsStage {
     public interface _FinalStage {
         TerminalCheckout build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID for this <code>TerminalCheckout</code>.</p>
          */
@@ -1291,5 +1295,17 @@ public TerminalCheckout build() {
                     tipMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEvent.java b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEvent.java
index 60424a9d..e3e912ae 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalCheckoutCreatedEventData data) {
         public TerminalCheckoutCreatedEvent build() {
             return new TerminalCheckoutCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventData.java b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventData.java
index d962ccf9..eee0f290 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalCheckoutCreatedEventObject object) {
         public TerminalCheckoutCreatedEventData build() {
             return new TerminalCheckoutCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventObject.java
index 43080388..51a39d52 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutCreatedEventObject.java
@@ -99,5 +99,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public TerminalCheckoutCreatedEventObject build() {
             return new TerminalCheckoutCreatedEventObject(checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutQuery.java b/src/main/java/com/squareup/square/types/TerminalCheckoutQuery.java
index 73b4bc42..e1eda0b6 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutQuery.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutQuery.java
@@ -128,5 +128,15 @@ public Builder sort(TerminalCheckoutQuerySort sort) {
         public TerminalCheckoutQuery build() {
             return new TerminalCheckoutQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutQueryFilter.java b/src/main/java/com/squareup/square/types/TerminalCheckoutQueryFilter.java
index 2ee2da25..e95dd88f 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutQueryFilter.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutQueryFilter.java
@@ -208,5 +208,15 @@ public Builder status(Nullable<String> status) {
         public TerminalCheckoutQueryFilter build() {
             return new TerminalCheckoutQueryFilter(deviceId, createdAt, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutQuerySort.java b/src/main/java/com/squareup/square/types/TerminalCheckoutQuerySort.java
index a03d6c30..50fde9d8 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutQuerySort.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutQuerySort.java
@@ -101,5 +101,15 @@ public Builder sortOrder(SortOrder sortOrder) {
         public TerminalCheckoutQuerySort build() {
             return new TerminalCheckoutQuerySort(sortOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEvent.java b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEvent.java
index 45eeb3c1..2998496a 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalCheckoutUpdatedEventData data) {
         public TerminalCheckoutUpdatedEvent build() {
             return new TerminalCheckoutUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventData.java b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventData.java
index bc34d30b..56021e01 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalCheckoutUpdatedEventObject object) {
         public TerminalCheckoutUpdatedEventData build() {
             return new TerminalCheckoutUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventObject.java
index b02bc7ce..08b0d826 100644
--- a/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalCheckoutUpdatedEventObject.java
@@ -99,5 +99,15 @@ public Builder checkout(TerminalCheckout checkout) {
         public TerminalCheckoutUpdatedEventObject build() {
             return new TerminalCheckoutUpdatedEventObject(checkout, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefund.java b/src/main/java/com/squareup/square/types/TerminalRefund.java
index 4658f798..bc8f48a2 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefund.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefund.java
@@ -309,6 +309,10 @@ public interface DeviceIdStage {
     public interface _FinalStage {
         TerminalRefund build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique ID for this <code>TerminalRefund</code>.</p>
          */
@@ -748,5 +752,17 @@ public TerminalRefund build() {
                     locationId,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEvent.java b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEvent.java
index 7021b472..a7366996 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalRefundCreatedEventData data) {
         public TerminalRefundCreatedEvent build() {
             return new TerminalRefundCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventData.java b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventData.java
index f44cda67..47983f09 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalRefundCreatedEventObject object) {
         public TerminalRefundCreatedEventData build() {
             return new TerminalRefundCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventObject.java
index 0b430faa..ed440b0a 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder refund(TerminalRefund refund) {
         public TerminalRefundCreatedEventObject build() {
             return new TerminalRefundCreatedEventObject(refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundQuery.java b/src/main/java/com/squareup/square/types/TerminalRefundQuery.java
index d420025c..73ea1e12 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundQuery.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundQuery.java
@@ -128,5 +128,15 @@ public Builder sort(TerminalRefundQuerySort sort) {
         public TerminalRefundQuery build() {
             return new TerminalRefundQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundQueryFilter.java b/src/main/java/com/squareup/square/types/TerminalRefundQueryFilter.java
index f5039f2e..5bdccbc4 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundQueryFilter.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundQueryFilter.java
@@ -208,5 +208,15 @@ public Builder status(Nullable<String> status) {
         public TerminalRefundQueryFilter build() {
             return new TerminalRefundQueryFilter(deviceId, createdAt, status, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundQuerySort.java b/src/main/java/com/squareup/square/types/TerminalRefundQuerySort.java
index 0613f2f4..234a28b7 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundQuerySort.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundQuerySort.java
@@ -128,5 +128,15 @@ public Builder sortOrder(Nullable<String> sortOrder) {
         public TerminalRefundQuerySort build() {
             return new TerminalRefundQuerySort(sortOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEvent.java b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEvent.java
index f03766d1..f47472ca 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TerminalRefundUpdatedEventData data) {
         public TerminalRefundUpdatedEvent build() {
             return new TerminalRefundUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventData.java b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventData.java
index 70bf6e03..c9d7bf32 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TerminalRefundUpdatedEventObject object) {
         public TerminalRefundUpdatedEventData build() {
             return new TerminalRefundUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventObject.java
index 4aa6d36b..2631ae2c 100644
--- a/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TerminalRefundUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder refund(TerminalRefund refund) {
         public TerminalRefundUpdatedEventObject build() {
             return new TerminalRefundUpdatedEventObject(refund, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TestWebhookSubscriptionResponse.java b/src/main/java/com/squareup/square/types/TestWebhookSubscriptionResponse.java
index a55d557a..4aa4665b 100644
--- a/src/main/java/com/squareup/square/types/TestWebhookSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/TestWebhookSubscriptionResponse.java
@@ -326,5 +326,15 @@ public TestWebhookSubscriptionResponse build() {
                     payload,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimeRange.java b/src/main/java/com/squareup/square/types/TimeRange.java
index 487603ae..653fcae7 100644
--- a/src/main/java/com/squareup/square/types/TimeRange.java
+++ b/src/main/java/com/squareup/square/types/TimeRange.java
@@ -172,5 +172,15 @@ public Builder endAt(Nullable<String> endAt) {
         public TimeRange build() {
             return new TimeRange(startAt, endAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Timecard.java b/src/main/java/com/squareup/square/types/Timecard.java
index 931f6532..4fb9480f 100644
--- a/src/main/java/com/squareup/square/types/Timecard.java
+++ b/src/main/java/com/squareup/square/types/Timecard.java
@@ -307,6 +307,10 @@ public interface TeamMemberIdStage {
     public interface _FinalStage {
         Timecard build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p><strong>Read only</strong> The Square-issued UUID for this object.</p>
          */
@@ -768,5 +772,17 @@ public Timecard build() {
                     declaredCashTipMoney,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimecardFilter.java b/src/main/java/com/squareup/square/types/TimecardFilter.java
index 7492b4d9..7d07e281 100644
--- a/src/main/java/com/squareup/square/types/TimecardFilter.java
+++ b/src/main/java/com/squareup/square/types/TimecardFilter.java
@@ -295,5 +295,15 @@ public Builder teamMemberIds(Nullable<List<String>> teamMemberIds) {
         public TimecardFilter build() {
             return new TimecardFilter(locationIds, status, start, end, workday, teamMemberIds, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimecardQuery.java b/src/main/java/com/squareup/square/types/TimecardQuery.java
index 6cb6a05c..836a8818 100644
--- a/src/main/java/com/squareup/square/types/TimecardQuery.java
+++ b/src/main/java/com/squareup/square/types/TimecardQuery.java
@@ -126,5 +126,15 @@ public Builder sort(TimecardSort sort) {
         public TimecardQuery build() {
             return new TimecardQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimecardSort.java b/src/main/java/com/squareup/square/types/TimecardSort.java
index 9ab94153..80d74bfc 100644
--- a/src/main/java/com/squareup/square/types/TimecardSort.java
+++ b/src/main/java/com/squareup/square/types/TimecardSort.java
@@ -130,5 +130,15 @@ public Builder order(SortOrder order) {
         public TimecardSort build() {
             return new TimecardSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimecardWage.java b/src/main/java/com/squareup/square/types/TimecardWage.java
index b73cbdba..642979a2 100644
--- a/src/main/java/com/squareup/square/types/TimecardWage.java
+++ b/src/main/java/com/squareup/square/types/TimecardWage.java
@@ -236,5 +236,15 @@ public Builder tipEligible(Nullable<Boolean> tipEligible) {
         public TimecardWage build() {
             return new TimecardWage(title, hourlyRate, jobId, tipEligible, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TimecardWorkday.java b/src/main/java/com/squareup/square/types/TimecardWorkday.java
index df355bfa..9057983b 100644
--- a/src/main/java/com/squareup/square/types/TimecardWorkday.java
+++ b/src/main/java/com/squareup/square/types/TimecardWorkday.java
@@ -190,5 +190,15 @@ public Builder defaultTimezone(Nullable<String> defaultTimezone) {
         public TimecardWorkday build() {
             return new TimecardWorkday(dateRange, matchTimecardsBy, defaultTimezone, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TipSettings.java b/src/main/java/com/squareup/square/types/TipSettings.java
index 8a7899e1..1f37dd2c 100644
--- a/src/main/java/com/squareup/square/types/TipSettings.java
+++ b/src/main/java/com/squareup/square/types/TipSettings.java
@@ -346,5 +346,15 @@ public TipSettings build() {
                     smartTipping,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Transaction.java b/src/main/java/com/squareup/square/types/Transaction.java
index 8cb0e318..2b2ebdea 100644
--- a/src/main/java/com/squareup/square/types/Transaction.java
+++ b/src/main/java/com/squareup/square/types/Transaction.java
@@ -534,5 +534,15 @@ public Transaction build() {
                     orderId,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrder.java b/src/main/java/com/squareup/square/types/TransferOrder.java
index 23cfa9bd..899a019f 100644
--- a/src/main/java/com/squareup/square/types/TransferOrder.java
+++ b/src/main/java/com/squareup/square/types/TransferOrder.java
@@ -710,5 +710,15 @@ public TransferOrder build() {
                     version,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderCreatedEvent.java b/src/main/java/com/squareup/square/types/TransferOrderCreatedEvent.java
index a0f89be4..49652914 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderCreatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TransferOrderCreatedEventData data) {
         public TransferOrderCreatedEvent build() {
             return new TransferOrderCreatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderCreatedEventData.java b/src/main/java/com/squareup/square/types/TransferOrderCreatedEventData.java
index 17c31749..2734cbfc 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TransferOrderCreatedEventObject object) {
         public TransferOrderCreatedEventData build() {
             return new TransferOrderCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderCreatedEventObject.java b/src/main/java/com/squareup/square/types/TransferOrderCreatedEventObject.java
index 1e455596..84ebd49d 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderCreatedEventObject.java
@@ -98,5 +98,15 @@ public Builder transferOrder(TransferOrder transferOrder) {
         public TransferOrderCreatedEventObject build() {
             return new TransferOrderCreatedEventObject(transferOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderDeletedEvent.java b/src/main/java/com/squareup/square/types/TransferOrderDeletedEvent.java
index 4e85b206..0a080c8b 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderDeletedEvent.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderDeletedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TransferOrderDeletedEventData data) {
         public TransferOrderDeletedEvent build() {
             return new TransferOrderDeletedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderDeletedEventData.java b/src/main/java/com/squareup/square/types/TransferOrderDeletedEventData.java
index b4a91784..5eadede9 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderDeletedEventData.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderDeletedEventData.java
@@ -200,5 +200,15 @@ public Builder deleted(Nullable<Boolean> deleted) {
         public TransferOrderDeletedEventData build() {
             return new TransferOrderDeletedEventData(type, id, deleted, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderFilter.java b/src/main/java/com/squareup/square/types/TransferOrderFilter.java
index 2e1c52ce..7294de1e 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderFilter.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderFilter.java
@@ -225,5 +225,15 @@ public Builder statuses(Nullable<List<TransferOrderStatus>> statuses) {
         public TransferOrderFilter build() {
             return new TransferOrderFilter(sourceLocationIds, destinationLocationIds, statuses, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderGoodsReceipt.java b/src/main/java/com/squareup/square/types/TransferOrderGoodsReceipt.java
index d9474aba..3d7a09d8 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderGoodsReceipt.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderGoodsReceipt.java
@@ -148,5 +148,15 @@ public Builder lineItems(Nullable<List<TransferOrderGoodsReceiptLineItem>> lineI
         public TransferOrderGoodsReceipt build() {
             return new TransferOrderGoodsReceipt(lineItems, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderGoodsReceiptLineItem.java b/src/main/java/com/squareup/square/types/TransferOrderGoodsReceiptLineItem.java
index 8b777afa..b88a2f56 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderGoodsReceiptLineItem.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderGoodsReceiptLineItem.java
@@ -153,6 +153,10 @@ public interface TransferOrderLineUidStage {
     public interface _FinalStage {
         TransferOrderGoodsReceiptLineItem build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The quantity received for this line item as a decimal string (e.g. &quot;10.5&quot;).
          * These items will be added to the destination <a href="entity:Location">Location</a>'s inventory with <a href="entity:InventoryState">InventoryState</a> of IN_STOCK.</p>
@@ -339,5 +343,17 @@ public TransferOrderGoodsReceiptLineItem build() {
             return new TransferOrderGoodsReceiptLineItem(
                     transferOrderLineUid, quantityReceived, quantityDamaged, quantityCanceled, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderLine.java b/src/main/java/com/squareup/square/types/TransferOrderLine.java
index 11ba0959..6246d746 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderLine.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderLine.java
@@ -182,6 +182,10 @@ public interface QuantityOrderedStage {
     public interface _FinalStage {
         TransferOrderLine build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Unique system-generated identifier for the line item. Provide when updating/removing a line via <a href="api-endpoint:TransferOrders-UpdateTransferOrder">UpdateTransferOrder</a>.</p>
          */
@@ -406,5 +410,17 @@ public TransferOrderLine build() {
                     quantityCanceled,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderQuery.java b/src/main/java/com/squareup/square/types/TransferOrderQuery.java
index 735cffe8..b0142bd4 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderQuery.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderQuery.java
@@ -128,5 +128,15 @@ public Builder sort(TransferOrderSort sort) {
         public TransferOrderQuery build() {
             return new TransferOrderQuery(filter, sort, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderSort.java b/src/main/java/com/squareup/square/types/TransferOrderSort.java
index 748a3763..6d579258 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderSort.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderSort.java
@@ -132,5 +132,15 @@ public Builder order(SortOrder order) {
         public TransferOrderSort build() {
             return new TransferOrderSort(field, order, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEvent.java b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEvent.java
index f87698f0..e89fc566 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEvent.java
@@ -282,5 +282,15 @@ public Builder data(TransferOrderUpdatedEventData data) {
         public TransferOrderUpdatedEvent build() {
             return new TransferOrderUpdatedEvent(merchantId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventData.java b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventData.java
index b2ee5242..bc144418 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(TransferOrderUpdatedEventObject object) {
         public TransferOrderUpdatedEventData build() {
             return new TransferOrderUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventObject.java b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventObject.java
index 9ee30429..2a144b76 100644
--- a/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/TransferOrderUpdatedEventObject.java
@@ -98,5 +98,15 @@ public Builder transferOrder(TransferOrder transferOrder) {
         public TransferOrderUpdatedEventObject build() {
             return new TransferOrderUpdatedEventObject(transferOrder, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardRequest.java b/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardRequest.java
index b8e58d20..5e781797 100644
--- a/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardRequest.java
+++ b/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardRequest.java
@@ -95,6 +95,10 @@ public interface CustomerIdStage {
 
     public interface _FinalStage {
         UnlinkCustomerFromGiftCardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage customerId(@NotNull String customerId) {
         public UnlinkCustomerFromGiftCardRequest build() {
             return new UnlinkCustomerFromGiftCardRequest(giftCardId, customerId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardResponse.java b/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardResponse.java
index a3ca7177..cb3c9665 100644
--- a/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardResponse.java
+++ b/src/main/java/com/squareup/square/types/UnlinkCustomerFromGiftCardResponse.java
@@ -130,5 +130,15 @@ public Builder giftCard(GiftCard giftCard) {
         public UnlinkCustomerFromGiftCardResponse build() {
             return new UnlinkCustomerFromGiftCardResponse(errors, giftCard, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateBookingCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/UpdateBookingCustomAttributeDefinitionResponse.java
index 8364947d..9ccf5bbe 100644
--- a/src/main/java/com/squareup/square/types/UpdateBookingCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateBookingCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public UpdateBookingCustomAttributeDefinitionResponse build() {
             return new UpdateBookingCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateBookingRequest.java b/src/main/java/com/squareup/square/types/UpdateBookingRequest.java
index 13443d57..c5d2ae83 100644
--- a/src/main/java/com/squareup/square/types/UpdateBookingRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateBookingRequest.java
@@ -126,6 +126,10 @@ public interface BookingStage {
     public interface _FinalStage {
         UpdateBookingRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique key to make this request an idempotent operation.</p>
          */
@@ -221,5 +225,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public UpdateBookingRequest build() {
             return new UpdateBookingRequest(bookingId, idempotencyKey, booking, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateBookingResponse.java b/src/main/java/com/squareup/square/types/UpdateBookingResponse.java
index 4b1e6831..8712ff86 100644
--- a/src/main/java/com/squareup/square/types/UpdateBookingResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateBookingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateBookingResponse build() {
             return new UpdateBookingResponse(booking, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateBreakTypeResponse.java b/src/main/java/com/squareup/square/types/UpdateBreakTypeResponse.java
index 33f2640b..f4f86ece 100644
--- a/src/main/java/com/squareup/square/types/UpdateBreakTypeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateBreakTypeResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateBreakTypeResponse build() {
             return new UpdateBreakTypeResponse(breakType, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCatalogImageRequest.java b/src/main/java/com/squareup/square/types/UpdateCatalogImageRequest.java
index 8fca90d8..d82e46ef 100644
--- a/src/main/java/com/squareup/square/types/UpdateCatalogImageRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateCatalogImageRequest.java
@@ -80,6 +80,10 @@ public interface IdempotencyKeyStage {
 
     public interface _FinalStage {
         UpdateCatalogImageRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -117,5 +121,17 @@ public _FinalStage idempotencyKey(@NotNull String idempotencyKey) {
         public UpdateCatalogImageRequest build() {
             return new UpdateCatalogImageRequest(idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCatalogImageResponse.java b/src/main/java/com/squareup/square/types/UpdateCatalogImageResponse.java
index 2b2ed211..adea9514 100644
--- a/src/main/java/com/squareup/square/types/UpdateCatalogImageResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateCatalogImageResponse.java
@@ -129,5 +129,15 @@ public Builder image(CatalogObject image) {
         public UpdateCatalogImageResponse build() {
             return new UpdateCatalogImageResponse(errors, image, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCustomerCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/UpdateCustomerCustomAttributeDefinitionResponse.java
index 5513f12e..978b80a4 100644
--- a/src/main/java/com/squareup/square/types/UpdateCustomerCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateCustomerCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public UpdateCustomerCustomAttributeDefinitionResponse build() {
             return new UpdateCustomerCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCustomerGroupResponse.java b/src/main/java/com/squareup/square/types/UpdateCustomerGroupResponse.java
index 6455eb26..28c8a423 100644
--- a/src/main/java/com/squareup/square/types/UpdateCustomerGroupResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateCustomerGroupResponse.java
@@ -127,5 +127,15 @@ public Builder group(CustomerGroup group) {
         public UpdateCustomerGroupResponse build() {
             return new UpdateCustomerGroupResponse(errors, group, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCustomerRequest.java b/src/main/java/com/squareup/square/types/UpdateCustomerRequest.java
index 96c722af..5a4cc3f2 100644
--- a/src/main/java/com/squareup/square/types/UpdateCustomerRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateCustomerRequest.java
@@ -350,6 +350,10 @@ public interface CustomerIdStage {
     public interface _FinalStage {
         UpdateCustomerRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The given name (that is, the first name) associated with the customer profile.</p>
          * <p>The maximum length for this value is 300 characters.</p>
@@ -977,5 +981,17 @@ public UpdateCustomerRequest build() {
                     taxIds,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateCustomerResponse.java b/src/main/java/com/squareup/square/types/UpdateCustomerResponse.java
index 573f07fc..f1921792 100644
--- a/src/main/java/com/squareup/square/types/UpdateCustomerResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateCustomerResponse.java
@@ -127,5 +127,15 @@ public Builder customer(Customer customer) {
         public UpdateCustomerResponse build() {
             return new UpdateCustomerResponse(errors, customer, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateInvoiceRequest.java b/src/main/java/com/squareup/square/types/UpdateInvoiceRequest.java
index fbc5714b..5d4e3a83 100644
--- a/src/main/java/com/squareup/square/types/UpdateInvoiceRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateInvoiceRequest.java
@@ -160,6 +160,10 @@ public interface InvoiceStage {
     public interface _FinalStage {
         UpdateInvoiceRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies the <code>UpdateInvoice</code> request. If you do not
          * provide <code>idempotency_key</code> (or provide an empty string as the value), the endpoint
@@ -329,5 +333,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public UpdateInvoiceRequest build() {
             return new UpdateInvoiceRequest(invoiceId, invoice, idempotencyKey, fieldsToClear, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateInvoiceResponse.java b/src/main/java/com/squareup/square/types/UpdateInvoiceResponse.java
index a5a7d086..0aa3ff4c 100644
--- a/src/main/java/com/squareup/square/types/UpdateInvoiceResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateInvoiceResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateInvoiceResponse build() {
             return new UpdateInvoiceResponse(invoice, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateItemModifierListsRequest.java b/src/main/java/com/squareup/square/types/UpdateItemModifierListsRequest.java
index e522ccbb..40769a80 100644
--- a/src/main/java/com/squareup/square/types/UpdateItemModifierListsRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateItemModifierListsRequest.java
@@ -219,5 +219,15 @@ public UpdateItemModifierListsRequest build() {
             return new UpdateItemModifierListsRequest(
                     itemIds, modifierListsToEnable, modifierListsToDisable, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateItemModifierListsResponse.java b/src/main/java/com/squareup/square/types/UpdateItemModifierListsResponse.java
index 463c7b81..8239dfaa 100644
--- a/src/main/java/com/squareup/square/types/UpdateItemModifierListsResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateItemModifierListsResponse.java
@@ -127,5 +127,15 @@ public Builder updatedAt(String updatedAt) {
         public UpdateItemModifierListsResponse build() {
             return new UpdateItemModifierListsResponse(errors, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateItemTaxesRequest.java b/src/main/java/com/squareup/square/types/UpdateItemTaxesRequest.java
index f329fc23..4fd6c9d3 100644
--- a/src/main/java/com/squareup/square/types/UpdateItemTaxesRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateItemTaxesRequest.java
@@ -220,5 +220,15 @@ public Builder taxesToDisable(Nullable<List<String>> taxesToDisable) {
         public UpdateItemTaxesRequest build() {
             return new UpdateItemTaxesRequest(itemIds, taxesToEnable, taxesToDisable, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateItemTaxesResponse.java b/src/main/java/com/squareup/square/types/UpdateItemTaxesResponse.java
index a60a9929..407a86e9 100644
--- a/src/main/java/com/squareup/square/types/UpdateItemTaxesResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateItemTaxesResponse.java
@@ -127,5 +127,15 @@ public Builder updatedAt(String updatedAt) {
         public UpdateItemTaxesResponse build() {
             return new UpdateItemTaxesResponse(errors, updatedAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateJobRequest.java b/src/main/java/com/squareup/square/types/UpdateJobRequest.java
index b7b4c0f4..8c0a9f0b 100644
--- a/src/main/java/com/squareup/square/types/UpdateJobRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateJobRequest.java
@@ -96,6 +96,10 @@ public interface JobStage {
 
     public interface _FinalStage {
         UpdateJobRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -146,5 +150,17 @@ public _FinalStage job(@NotNull Job job) {
         public UpdateJobRequest build() {
             return new UpdateJobRequest(jobId, job, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateJobResponse.java b/src/main/java/com/squareup/square/types/UpdateJobResponse.java
index f421da79..d02412cf 100644
--- a/src/main/java/com/squareup/square/types/UpdateJobResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateJobResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateJobResponse build() {
             return new UpdateJobResponse(job, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateLocationCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/UpdateLocationCustomAttributeDefinitionResponse.java
index 096947f1..027388ac 100644
--- a/src/main/java/com/squareup/square/types/UpdateLocationCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateLocationCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public UpdateLocationCustomAttributeDefinitionResponse build() {
             return new UpdateLocationCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateLocationRequest.java b/src/main/java/com/squareup/square/types/UpdateLocationRequest.java
index 8558a452..632f9dd1 100644
--- a/src/main/java/com/squareup/square/types/UpdateLocationRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateLocationRequest.java
@@ -91,6 +91,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         UpdateLocationRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <code>Location</code> object with only the fields to update.</p>
          */
@@ -153,5 +157,17 @@ public _FinalStage location(Optional<Location> location) {
         public UpdateLocationRequest build() {
             return new UpdateLocationRequest(locationId, location, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateLocationResponse.java b/src/main/java/com/squareup/square/types/UpdateLocationResponse.java
index 7950f1fa..1d7fff72 100644
--- a/src/main/java/com/squareup/square/types/UpdateLocationResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateLocationResponse.java
@@ -127,5 +127,15 @@ public Builder location(Location location) {
         public UpdateLocationResponse build() {
             return new UpdateLocationResponse(errors, location, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateLocationSettingsRequest.java b/src/main/java/com/squareup/square/types/UpdateLocationSettingsRequest.java
index 63733d1b..f2ac76db 100644
--- a/src/main/java/com/squareup/square/types/UpdateLocationSettingsRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateLocationSettingsRequest.java
@@ -95,6 +95,10 @@ public interface LocationSettingsStage {
 
     public interface _FinalStage {
         UpdateLocationSettingsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -143,5 +147,17 @@ public _FinalStage locationSettings(@NotNull CheckoutLocationSettings locationSe
         public UpdateLocationSettingsRequest build() {
             return new UpdateLocationSettingsRequest(locationId, locationSettings, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateLocationSettingsResponse.java b/src/main/java/com/squareup/square/types/UpdateLocationSettingsResponse.java
index 732219ae..228b7fa5 100644
--- a/src/main/java/com/squareup/square/types/UpdateLocationSettingsResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateLocationSettingsResponse.java
@@ -129,5 +129,15 @@ public Builder locationSettings(CheckoutLocationSettings locationSettings) {
         public UpdateLocationSettingsResponse build() {
             return new UpdateLocationSettingsResponse(errors, locationSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateMerchantCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/UpdateMerchantCustomAttributeDefinitionResponse.java
index 5a1c19e0..f2f09f03 100644
--- a/src/main/java/com/squareup/square/types/UpdateMerchantCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateMerchantCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public UpdateMerchantCustomAttributeDefinitionResponse build() {
             return new UpdateMerchantCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateMerchantSettingsRequest.java b/src/main/java/com/squareup/square/types/UpdateMerchantSettingsRequest.java
index 394a847a..d5698472 100644
--- a/src/main/java/com/squareup/square/types/UpdateMerchantSettingsRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateMerchantSettingsRequest.java
@@ -77,6 +77,10 @@ public interface MerchantSettingsStage {
 
     public interface _FinalStage {
         UpdateMerchantSettingsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -110,5 +114,17 @@ public _FinalStage merchantSettings(@NotNull CheckoutMerchantSettings merchantSe
         public UpdateMerchantSettingsRequest build() {
             return new UpdateMerchantSettingsRequest(merchantSettings, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateMerchantSettingsResponse.java b/src/main/java/com/squareup/square/types/UpdateMerchantSettingsResponse.java
index 829b3bcc..bf63b6f4 100644
--- a/src/main/java/com/squareup/square/types/UpdateMerchantSettingsResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateMerchantSettingsResponse.java
@@ -129,5 +129,15 @@ public Builder merchantSettings(CheckoutMerchantSettings merchantSettings) {
         public UpdateMerchantSettingsResponse build() {
             return new UpdateMerchantSettingsResponse(errors, merchantSettings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateOrderCustomAttributeDefinitionResponse.java b/src/main/java/com/squareup/square/types/UpdateOrderCustomAttributeDefinitionResponse.java
index 8b68e7b5..f0f91ef5 100644
--- a/src/main/java/com/squareup/square/types/UpdateOrderCustomAttributeDefinitionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateOrderCustomAttributeDefinitionResponse.java
@@ -131,5 +131,15 @@ public UpdateOrderCustomAttributeDefinitionResponse build() {
             return new UpdateOrderCustomAttributeDefinitionResponse(
                     customAttributeDefinition, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateOrderRequest.java b/src/main/java/com/squareup/square/types/UpdateOrderRequest.java
index 684d6728..b4fd3cef 100644
--- a/src/main/java/com/squareup/square/types/UpdateOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateOrderRequest.java
@@ -151,6 +151,10 @@ public interface OrderIdStage {
     public interface _FinalStage {
         UpdateOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <a href="https://developer.squareup.com/docs/orders-api/manage-orders/update-orders#sparse-order-objects">sparse order</a>
          * containing only the fields to update and the version to which the update is
@@ -343,5 +347,17 @@ public _FinalStage order(Optional<Order> order) {
         public UpdateOrderRequest build() {
             return new UpdateOrderRequest(orderId, order, fieldsToClear, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateOrderResponse.java b/src/main/java/com/squareup/square/types/UpdateOrderResponse.java
index 96aa193a..84b16456 100644
--- a/src/main/java/com/squareup/square/types/UpdateOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateOrderResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateOrderResponse build() {
             return new UpdateOrderResponse(order, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdatePaymentLinkResponse.java b/src/main/java/com/squareup/square/types/UpdatePaymentLinkResponse.java
index bca67c34..e6a7a824 100644
--- a/src/main/java/com/squareup/square/types/UpdatePaymentLinkResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdatePaymentLinkResponse.java
@@ -127,5 +127,15 @@ public Builder paymentLink(PaymentLink paymentLink) {
         public UpdatePaymentLinkResponse build() {
             return new UpdatePaymentLinkResponse(errors, paymentLink, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdatePaymentRequest.java b/src/main/java/com/squareup/square/types/UpdatePaymentRequest.java
index 6556c4ca..72ece450 100644
--- a/src/main/java/com/squareup/square/types/UpdatePaymentRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdatePaymentRequest.java
@@ -118,6 +118,10 @@ public interface IdempotencyKeyStage {
     public interface _FinalStage {
         UpdatePaymentRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The updated <code>Payment</code> object.</p>
          */
@@ -199,5 +203,17 @@ public _FinalStage payment(Optional<Payment> payment) {
         public UpdatePaymentRequest build() {
             return new UpdatePaymentRequest(paymentId, payment, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdatePaymentResponse.java b/src/main/java/com/squareup/square/types/UpdatePaymentResponse.java
index 14656566..f1248ed9 100644
--- a/src/main/java/com/squareup/square/types/UpdatePaymentResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdatePaymentResponse.java
@@ -127,5 +127,15 @@ public Builder payment(Payment payment) {
         public UpdatePaymentResponse build() {
             return new UpdatePaymentResponse(errors, payment, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateScheduledShiftRequest.java b/src/main/java/com/squareup/square/types/UpdateScheduledShiftRequest.java
index f679303f..e18813bf 100644
--- a/src/main/java/com/squareup/square/types/UpdateScheduledShiftRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateScheduledShiftRequest.java
@@ -115,6 +115,10 @@ public interface ScheduledShiftStage {
 
     public interface _FinalStage {
         UpdateScheduledShiftRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -183,5 +187,17 @@ public _FinalStage scheduledShift(@NotNull ScheduledShift scheduledShift) {
         public UpdateScheduledShiftRequest build() {
             return new UpdateScheduledShiftRequest(id, scheduledShift, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateScheduledShiftResponse.java b/src/main/java/com/squareup/square/types/UpdateScheduledShiftResponse.java
index 5197eea7..1e63c9d6 100644
--- a/src/main/java/com/squareup/square/types/UpdateScheduledShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateScheduledShiftResponse.java
@@ -133,5 +133,15 @@ public Builder errors(List<Error> errors) {
         public UpdateScheduledShiftResponse build() {
             return new UpdateScheduledShiftResponse(scheduledShift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateShiftResponse.java b/src/main/java/com/squareup/square/types/UpdateShiftResponse.java
index 211de4f1..bf7b5601 100644
--- a/src/main/java/com/squareup/square/types/UpdateShiftResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateShiftResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateShiftResponse build() {
             return new UpdateShiftResponse(shift, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateSubscriptionRequest.java b/src/main/java/com/squareup/square/types/UpdateSubscriptionRequest.java
index fcbe353f..d3c31197 100644
--- a/src/main/java/com/squareup/square/types/UpdateSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateSubscriptionRequest.java
@@ -93,6 +93,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         UpdateSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The subscription object containing the current version, and fields to update.
          * Unset fields will be left at their current server values, and JSON <code>null</code> values will
@@ -161,5 +165,17 @@ public _FinalStage subscription(Optional<Subscription> subscription) {
         public UpdateSubscriptionRequest build() {
             return new UpdateSubscriptionRequest(subscriptionId, subscription, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateSubscriptionResponse.java b/src/main/java/com/squareup/square/types/UpdateSubscriptionResponse.java
index 641d5b1c..3ef221b5 100644
--- a/src/main/java/com/squareup/square/types/UpdateSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateSubscriptionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(Subscription subscription) {
         public UpdateSubscriptionResponse build() {
             return new UpdateSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTeamMemberRequest.java b/src/main/java/com/squareup/square/types/UpdateTeamMemberRequest.java
index b7743f1c..f6ab0e5c 100644
--- a/src/main/java/com/squareup/square/types/UpdateTeamMemberRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateTeamMemberRequest.java
@@ -101,5 +101,15 @@ public Builder teamMember(TeamMember teamMember) {
         public UpdateTeamMemberRequest build() {
             return new UpdateTeamMemberRequest(teamMember, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTeamMemberResponse.java b/src/main/java/com/squareup/square/types/UpdateTeamMemberResponse.java
index 1596ee11..ec7afa58 100644
--- a/src/main/java/com/squareup/square/types/UpdateTeamMemberResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateTeamMemberResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateTeamMemberResponse build() {
             return new UpdateTeamMemberResponse(teamMember, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTeamMembersRequest.java b/src/main/java/com/squareup/square/types/UpdateTeamMembersRequest.java
index f434efc6..53fc3417 100644
--- a/src/main/java/com/squareup/square/types/UpdateTeamMembersRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateTeamMembersRequest.java
@@ -89,6 +89,10 @@ public interface BodyStage {
 
     public interface _FinalStage {
         UpdateTeamMembersRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -132,5 +136,17 @@ public _FinalStage body(@NotNull UpdateTeamMemberRequest body) {
         public UpdateTeamMembersRequest build() {
             return new UpdateTeamMembersRequest(teamMemberId, body, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTimecardRequest.java b/src/main/java/com/squareup/square/types/UpdateTimecardRequest.java
index 574390eb..f7fe6c86 100644
--- a/src/main/java/com/squareup/square/types/UpdateTimecardRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateTimecardRequest.java
@@ -94,6 +94,10 @@ public interface TimecardStage {
 
     public interface _FinalStage {
         UpdateTimecardRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage timecard(@NotNull Timecard timecard) {
         public UpdateTimecardRequest build() {
             return new UpdateTimecardRequest(id, timecard, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTimecardResponse.java b/src/main/java/com/squareup/square/types/UpdateTimecardResponse.java
index 0a1cab2a..34809cdf 100644
--- a/src/main/java/com/squareup/square/types/UpdateTimecardResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateTimecardResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateTimecardResponse build() {
             return new UpdateTimecardResponse(timecard, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTransferOrderData.java b/src/main/java/com/squareup/square/types/UpdateTransferOrderData.java
index 04b2e88f..f444afee 100644
--- a/src/main/java/com/squareup/square/types/UpdateTransferOrderData.java
+++ b/src/main/java/com/squareup/square/types/UpdateTransferOrderData.java
@@ -390,5 +390,15 @@ public UpdateTransferOrderData build() {
                     lineItems,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTransferOrderLineData.java b/src/main/java/com/squareup/square/types/UpdateTransferOrderLineData.java
index ab1bf4a9..de8e1e92 100644
--- a/src/main/java/com/squareup/square/types/UpdateTransferOrderLineData.java
+++ b/src/main/java/com/squareup/square/types/UpdateTransferOrderLineData.java
@@ -274,5 +274,15 @@ public Builder remove(Nullable<Boolean> remove) {
         public UpdateTransferOrderLineData build() {
             return new UpdateTransferOrderLineData(uid, itemVariationId, quantityOrdered, remove, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTransferOrderRequest.java b/src/main/java/com/squareup/square/types/UpdateTransferOrderRequest.java
index a6e0b568..8f3e6fdd 100644
--- a/src/main/java/com/squareup/square/types/UpdateTransferOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateTransferOrderRequest.java
@@ -134,6 +134,10 @@ public interface TransferOrderStage {
     public interface _FinalStage {
         UpdateTransferOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>Version for optimistic concurrency</p>
          */
@@ -228,5 +232,17 @@ public UpdateTransferOrderRequest build() {
             return new UpdateTransferOrderRequest(
                     transferOrderId, idempotencyKey, transferOrder, version, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateTransferOrderResponse.java b/src/main/java/com/squareup/square/types/UpdateTransferOrderResponse.java
index 06fafaa5..fb7d024a 100644
--- a/src/main/java/com/squareup/square/types/UpdateTransferOrderResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateTransferOrderResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public UpdateTransferOrderResponse build() {
             return new UpdateTransferOrderResponse(transferOrder, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateVendorRequest.java b/src/main/java/com/squareup/square/types/UpdateVendorRequest.java
index f1d43890..f100bfb6 100644
--- a/src/main/java/com/squareup/square/types/UpdateVendorRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateVendorRequest.java
@@ -107,6 +107,10 @@ public interface VendorStage {
     public interface _FinalStage {
         UpdateVendorRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A client-supplied, universally unique identifier (UUID) for the
          * request.</p>
@@ -203,5 +207,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public UpdateVendorRequest build() {
             return new UpdateVendorRequest(idempotencyKey, vendor, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateVendorResponse.java b/src/main/java/com/squareup/square/types/UpdateVendorResponse.java
index ec7af355..730877bc 100644
--- a/src/main/java/com/squareup/square/types/UpdateVendorResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateVendorResponse.java
@@ -127,5 +127,15 @@ public Builder vendor(Vendor vendor) {
         public UpdateVendorResponse build() {
             return new UpdateVendorResponse(errors, vendor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateVendorsRequest.java b/src/main/java/com/squareup/square/types/UpdateVendorsRequest.java
index fadb5982..3f335f3b 100644
--- a/src/main/java/com/squareup/square/types/UpdateVendorsRequest.java
+++ b/src/main/java/com/squareup/square/types/UpdateVendorsRequest.java
@@ -88,6 +88,10 @@ public interface BodyStage {
 
     public interface _FinalStage {
         UpdateVendorsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -131,5 +135,17 @@ public _FinalStage body(@NotNull UpdateVendorRequest body) {
         public UpdateVendorsRequest build() {
             return new UpdateVendorsRequest(vendorId, body, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateWageSettingResponse.java b/src/main/java/com/squareup/square/types/UpdateWageSettingResponse.java
index 6f581ee6..c409f802 100644
--- a/src/main/java/com/squareup/square/types/UpdateWageSettingResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateWageSettingResponse.java
@@ -127,5 +127,15 @@ public Builder errors(List<Error> errors) {
         public UpdateWageSettingResponse build() {
             return new UpdateWageSettingResponse(wageSetting, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionResponse.java b/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionResponse.java
index 9621a2fa..b8611265 100644
--- a/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionResponse.java
@@ -129,5 +129,15 @@ public Builder subscription(WebhookSubscription subscription) {
         public UpdateWebhookSubscriptionResponse build() {
             return new UpdateWebhookSubscriptionResponse(errors, subscription, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionSignatureKeyResponse.java b/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionSignatureKeyResponse.java
index 7b9471a8..90bbc9f7 100644
--- a/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionSignatureKeyResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateWebhookSubscriptionSignatureKeyResponse.java
@@ -128,5 +128,15 @@ public Builder signatureKey(String signatureKey) {
         public UpdateWebhookSubscriptionSignatureKeyResponse build() {
             return new UpdateWebhookSubscriptionSignatureKeyResponse(errors, signatureKey, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpdateWorkweekConfigResponse.java b/src/main/java/com/squareup/square/types/UpdateWorkweekConfigResponse.java
index f82e1b88..d058fc72 100644
--- a/src/main/java/com/squareup/square/types/UpdateWorkweekConfigResponse.java
+++ b/src/main/java/com/squareup/square/types/UpdateWorkweekConfigResponse.java
@@ -129,5 +129,15 @@ public Builder errors(List<Error> errors) {
         public UpdateWorkweekConfigResponse build() {
             return new UpdateWorkweekConfigResponse(workweekConfig, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertBookingCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/UpsertBookingCustomAttributeResponse.java
index 1486cfa1..41676cff 100644
--- a/src/main/java/com/squareup/square/types/UpsertBookingCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertBookingCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public UpsertBookingCustomAttributeResponse build() {
             return new UpsertBookingCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertCatalogObjectResponse.java b/src/main/java/com/squareup/square/types/UpsertCatalogObjectResponse.java
index 10504dd8..ffe4d85f 100644
--- a/src/main/java/com/squareup/square/types/UpsertCatalogObjectResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertCatalogObjectResponse.java
@@ -160,5 +160,15 @@ public Builder idMappings(List<CatalogIdMapping> idMappings) {
         public UpsertCatalogObjectResponse build() {
             return new UpsertCatalogObjectResponse(errors, catalogObject, idMappings, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertCustomerCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/UpsertCustomerCustomAttributeResponse.java
index 78462ac4..da15203b 100644
--- a/src/main/java/com/squareup/square/types/UpsertCustomerCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertCustomerCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public UpsertCustomerCustomAttributeResponse build() {
             return new UpsertCustomerCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertLocationCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/UpsertLocationCustomAttributeResponse.java
index 32021f25..5c8d43c4 100644
--- a/src/main/java/com/squareup/square/types/UpsertLocationCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertLocationCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public UpsertLocationCustomAttributeResponse build() {
             return new UpsertLocationCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertMerchantCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/UpsertMerchantCustomAttributeResponse.java
index 3a3c10f4..8e5edad4 100644
--- a/src/main/java/com/squareup/square/types/UpsertMerchantCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertMerchantCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public UpsertMerchantCustomAttributeResponse build() {
             return new UpsertMerchantCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertOrderCustomAttributeResponse.java b/src/main/java/com/squareup/square/types/UpsertOrderCustomAttributeResponse.java
index f06b5cb2..d766cedc 100644
--- a/src/main/java/com/squareup/square/types/UpsertOrderCustomAttributeResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertOrderCustomAttributeResponse.java
@@ -130,5 +130,15 @@ public Builder errors(List<Error> errors) {
         public UpsertOrderCustomAttributeResponse build() {
             return new UpsertOrderCustomAttributeResponse(customAttribute, errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertSnippetRequest.java b/src/main/java/com/squareup/square/types/UpsertSnippetRequest.java
index c4024a58..1a879a6e 100644
--- a/src/main/java/com/squareup/square/types/UpsertSnippetRequest.java
+++ b/src/main/java/com/squareup/square/types/UpsertSnippetRequest.java
@@ -94,6 +94,10 @@ public interface SnippetStage {
 
     public interface _FinalStage {
         UpsertSnippetRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage snippet(@NotNull Snippet snippet) {
         public UpsertSnippetRequest build() {
             return new UpsertSnippetRequest(siteId, snippet, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/UpsertSnippetResponse.java b/src/main/java/com/squareup/square/types/UpsertSnippetResponse.java
index eb38d158..445f6cc4 100644
--- a/src/main/java/com/squareup/square/types/UpsertSnippetResponse.java
+++ b/src/main/java/com/squareup/square/types/UpsertSnippetResponse.java
@@ -127,5 +127,15 @@ public Builder snippet(Snippet snippet) {
         public UpsertSnippetResponse build() {
             return new UpsertSnippetResponse(errors, snippet, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1ListOrdersRequest.java b/src/main/java/com/squareup/square/types/V1ListOrdersRequest.java
index 726db74d..47457cb3 100644
--- a/src/main/java/com/squareup/square/types/V1ListOrdersRequest.java
+++ b/src/main/java/com/squareup/square/types/V1ListOrdersRequest.java
@@ -151,6 +151,10 @@ public interface LocationIdStage {
     public interface _FinalStage {
         V1ListOrdersRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The order in which payments are listed in the response.</p>
          */
@@ -331,5 +335,17 @@ public _FinalStage order(Optional<SortOrder> order) {
         public V1ListOrdersRequest build() {
             return new V1ListOrdersRequest(locationId, order, limit, batchToken, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1Money.java b/src/main/java/com/squareup/square/types/V1Money.java
index 8cd501c2..9eb5e5d9 100644
--- a/src/main/java/com/squareup/square/types/V1Money.java
+++ b/src/main/java/com/squareup/square/types/V1Money.java
@@ -151,5 +151,15 @@ public Builder currencyCode(Currency currencyCode) {
         public V1Money build() {
             return new V1Money(amount, currencyCode, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1Order.java b/src/main/java/com/squareup/square/types/V1Order.java
index e079fbfb..75314303 100644
--- a/src/main/java/com/squareup/square/types/V1Order.java
+++ b/src/main/java/com/squareup/square/types/V1Order.java
@@ -1156,5 +1156,15 @@ public V1Order build() {
                     btcPriceSatoshi,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1OrderHistoryEntry.java b/src/main/java/com/squareup/square/types/V1OrderHistoryEntry.java
index 9d963dd0..53a9be82 100644
--- a/src/main/java/com/squareup/square/types/V1OrderHistoryEntry.java
+++ b/src/main/java/com/squareup/square/types/V1OrderHistoryEntry.java
@@ -130,5 +130,15 @@ public Builder createdAt(String createdAt) {
         public V1OrderHistoryEntry build() {
             return new V1OrderHistoryEntry(action, createdAt, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1RetrieveOrderRequest.java b/src/main/java/com/squareup/square/types/V1RetrieveOrderRequest.java
index 81d89e1e..0ae79806 100644
--- a/src/main/java/com/squareup/square/types/V1RetrieveOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/V1RetrieveOrderRequest.java
@@ -94,6 +94,10 @@ public interface OrderIdStage {
 
     public interface _FinalStage {
         V1RetrieveOrderRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -142,5 +146,17 @@ public _FinalStage orderId(@NotNull String orderId) {
         public V1RetrieveOrderRequest build() {
             return new V1RetrieveOrderRequest(locationId, orderId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1Tender.java b/src/main/java/com/squareup/square/types/V1Tender.java
index ed73a9ee..0b8863fd 100644
--- a/src/main/java/com/squareup/square/types/V1Tender.java
+++ b/src/main/java/com/squareup/square/types/V1Tender.java
@@ -751,5 +751,15 @@ public V1Tender build() {
                     isExchange,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/V1UpdateOrderRequest.java b/src/main/java/com/squareup/square/types/V1UpdateOrderRequest.java
index 33200a48..8a0227c8 100644
--- a/src/main/java/com/squareup/square/types/V1UpdateOrderRequest.java
+++ b/src/main/java/com/squareup/square/types/V1UpdateOrderRequest.java
@@ -221,6 +221,10 @@ public interface ActionStage {
     public interface _FinalStage {
         V1UpdateOrderRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The tracking number of the shipment associated with the order. Only valid if action is COMPLETE.</p>
          */
@@ -485,5 +489,17 @@ public V1UpdateOrderRequest build() {
                     canceledNote,
                     additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/Vendor.java b/src/main/java/com/squareup/square/types/Vendor.java
index 0ed1579b..6c9cfbf5 100644
--- a/src/main/java/com/squareup/square/types/Vendor.java
+++ b/src/main/java/com/squareup/square/types/Vendor.java
@@ -484,5 +484,15 @@ public Vendor build() {
                     status,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorContact.java b/src/main/java/com/squareup/square/types/VendorContact.java
index 200db0ff..aac8e999 100644
--- a/src/main/java/com/squareup/square/types/VendorContact.java
+++ b/src/main/java/com/squareup/square/types/VendorContact.java
@@ -186,6 +186,10 @@ public interface OrdinalStage {
     public interface _FinalStage {
         VendorContact build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique Square-generated ID for the <a href="entity:VendorContact">VendorContact</a>.
          * This field is required when attempting to update a <a href="entity:VendorContact">VendorContact</a>.</p>
@@ -447,5 +451,17 @@ public _FinalStage id(Optional<String> id) {
         public VendorContact build() {
             return new VendorContact(id, name, emailAddress, phoneNumber, removed, ordinal, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorCreatedEvent.java b/src/main/java/com/squareup/square/types/VendorCreatedEvent.java
index f12af17a..327d9c73 100644
--- a/src/main/java/com/squareup/square/types/VendorCreatedEvent.java
+++ b/src/main/java/com/squareup/square/types/VendorCreatedEvent.java
@@ -332,5 +332,15 @@ public Builder data(VendorCreatedEventData data) {
         public VendorCreatedEvent build() {
             return new VendorCreatedEvent(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorCreatedEventData.java b/src/main/java/com/squareup/square/types/VendorCreatedEventData.java
index 605819f2..e0492f6e 100644
--- a/src/main/java/com/squareup/square/types/VendorCreatedEventData.java
+++ b/src/main/java/com/squareup/square/types/VendorCreatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(VendorCreatedEventObject object) {
         public VendorCreatedEventData build() {
             return new VendorCreatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorCreatedEventObject.java b/src/main/java/com/squareup/square/types/VendorCreatedEventObject.java
index 5d86bd2f..a6a3eb30 100644
--- a/src/main/java/com/squareup/square/types/VendorCreatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/VendorCreatedEventObject.java
@@ -128,5 +128,15 @@ public Builder vendor(Vendor vendor) {
         public VendorCreatedEventObject build() {
             return new VendorCreatedEventObject(operation, vendor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorUpdatedEvent.java b/src/main/java/com/squareup/square/types/VendorUpdatedEvent.java
index 3d5cd2aa..5425c064 100644
--- a/src/main/java/com/squareup/square/types/VendorUpdatedEvent.java
+++ b/src/main/java/com/squareup/square/types/VendorUpdatedEvent.java
@@ -332,5 +332,15 @@ public Builder data(VendorUpdatedEventData data) {
         public VendorUpdatedEvent build() {
             return new VendorUpdatedEvent(merchantId, locationId, type, eventId, createdAt, data, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorUpdatedEventData.java b/src/main/java/com/squareup/square/types/VendorUpdatedEventData.java
index ad7cb21a..af9f1954 100644
--- a/src/main/java/com/squareup/square/types/VendorUpdatedEventData.java
+++ b/src/main/java/com/squareup/square/types/VendorUpdatedEventData.java
@@ -180,5 +180,15 @@ public Builder object(VendorUpdatedEventObject object) {
         public VendorUpdatedEventData build() {
             return new VendorUpdatedEventData(type, id, object, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VendorUpdatedEventObject.java b/src/main/java/com/squareup/square/types/VendorUpdatedEventObject.java
index 95df4d42..0e77bcbe 100644
--- a/src/main/java/com/squareup/square/types/VendorUpdatedEventObject.java
+++ b/src/main/java/com/squareup/square/types/VendorUpdatedEventObject.java
@@ -128,5 +128,15 @@ public Builder vendor(Vendor vendor) {
         public VendorUpdatedEventObject build() {
             return new VendorUpdatedEventObject(operation, vendor, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/VoidTransactionResponse.java b/src/main/java/com/squareup/square/types/VoidTransactionResponse.java
index 1ac6179d..788246e4 100644
--- a/src/main/java/com/squareup/square/types/VoidTransactionResponse.java
+++ b/src/main/java/com/squareup/square/types/VoidTransactionResponse.java
@@ -98,5 +98,15 @@ public Builder errors(List<Error> errors) {
         public VoidTransactionResponse build() {
             return new VoidTransactionResponse(errors, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/WageSetting.java b/src/main/java/com/squareup/square/types/WageSetting.java
index f9936ed8..91d3515f 100644
--- a/src/main/java/com/squareup/square/types/WageSetting.java
+++ b/src/main/java/com/squareup/square/types/WageSetting.java
@@ -334,5 +334,15 @@ public WageSetting build() {
                     updatedAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/WebhookSubscription.java b/src/main/java/com/squareup/square/types/WebhookSubscription.java
index a8bf1696..10b64638 100644
--- a/src/main/java/com/squareup/square/types/WebhookSubscription.java
+++ b/src/main/java/com/squareup/square/types/WebhookSubscription.java
@@ -468,5 +468,15 @@ public WebhookSubscription build() {
                     updatedAt,
                     additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/types/WorkweekConfig.java b/src/main/java/com/squareup/square/types/WorkweekConfig.java
index 0d5c9d05..572848a2 100644
--- a/src/main/java/com/squareup/square/types/WorkweekConfig.java
+++ b/src/main/java/com/squareup/square/types/WorkweekConfig.java
@@ -165,6 +165,10 @@ public interface StartOfDayLocalTimeStage {
     public interface _FinalStage {
         WorkweekConfig build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The UUID for this object.</p>
          */
@@ -351,5 +355,17 @@ public WorkweekConfig build() {
             return new WorkweekConfig(
                     id, startOfWeek, startOfDayLocalTime, version, createdAt, updatedAt, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/AsyncRawEventTypesClient.java b/src/main/java/com/squareup/square/webhooks/AsyncRawEventTypesClient.java
index 43ea95ed..1b9dedcb 100644
--- a/src/main/java/com/squareup/square/webhooks/AsyncRawEventTypesClient.java
+++ b/src/main/java/com/squareup/square/webhooks/AsyncRawEventTypesClient.java
@@ -66,6 +66,11 @@ public CompletableFuture<SquareClientHttpResponse<ListWebhookEventTypesResponse>
             QueryStringMapper.addQueryParameter(
                     httpUrl, "api_version", request.getApiVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/webhooks/AsyncRawSubscriptionsClient.java b/src/main/java/com/squareup/square/webhooks/AsyncRawSubscriptionsClient.java
index 78e0038f..1d6e20e4 100644
--- a/src/main/java/com/squareup/square/webhooks/AsyncRawSubscriptionsClient.java
+++ b/src/main/java/com/squareup/square/webhooks/AsyncRawSubscriptionsClient.java
@@ -99,6 +99,11 @@ public CompletableFuture<SquareClientHttpResponse<SyncPagingIterable<WebhookSubs
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -170,10 +175,14 @@ public CompletableFuture<SquareClientHttpResponse<CreateWebhookSubscriptionRespo
      */
     public CompletableFuture<SquareClientHttpResponse<CreateWebhookSubscriptionResponse>> create(
             CreateWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/webhooks/subscriptions")
-                .build();
+                .addPathSegments("v2/webhooks/subscriptions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -182,7 +191,7 @@ public CompletableFuture<SquareClientHttpResponse<CreateWebhookSubscriptionRespo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -236,13 +245,17 @@ public CompletableFuture<SquareClientHttpResponse<GetWebhookSubscriptionResponse
      */
     public CompletableFuture<SquareClientHttpResponse<GetWebhookSubscriptionResponse>> get(
             GetSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -294,11 +307,15 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWebhookSubscriptionRespo
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateWebhookSubscriptionResponse>> update(
             UpdateWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -307,7 +324,7 @@ public CompletableFuture<SquareClientHttpResponse<UpdateWebhookSubscriptionRespo
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -361,13 +378,17 @@ public CompletableFuture<SquareClientHttpResponse<DeleteWebhookSubscriptionRespo
      */
     public CompletableFuture<SquareClientHttpResponse<DeleteWebhookSubscriptionResponse>> delete(
             DeleteSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -420,12 +441,16 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
      */
     public CompletableFuture<SquareClientHttpResponse<UpdateWebhookSubscriptionSignatureKeyResponse>>
             updateSignatureKey(UpdateWebhookSubscriptionSignatureKeyRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("signature-key")
-                .build();
+                .addPathSegments("signature-key");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -434,7 +459,7 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -488,12 +513,16 @@ public CompletableFuture<SquareClientHttpResponse<TestWebhookSubscriptionRespons
      */
     public CompletableFuture<SquareClientHttpResponse<TestWebhookSubscriptionResponse>> test(
             TestWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("test")
-                .build();
+                .addPathSegments("test");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -502,7 +531,7 @@ public CompletableFuture<SquareClientHttpResponse<TestWebhookSubscriptionRespons
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/webhooks/RawEventTypesClient.java b/src/main/java/com/squareup/square/webhooks/RawEventTypesClient.java
index ba069e87..c065dca4 100644
--- a/src/main/java/com/squareup/square/webhooks/RawEventTypesClient.java
+++ b/src/main/java/com/squareup/square/webhooks/RawEventTypesClient.java
@@ -60,6 +60,11 @@ public SquareClientHttpResponse<ListWebhookEventTypesResponse> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "api_version", request.getApiVersion().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
diff --git a/src/main/java/com/squareup/square/webhooks/RawSubscriptionsClient.java b/src/main/java/com/squareup/square/webhooks/RawSubscriptionsClient.java
index 1a8279fd..5e151724 100644
--- a/src/main/java/com/squareup/square/webhooks/RawSubscriptionsClient.java
+++ b/src/main/java/com/squareup/square/webhooks/RawSubscriptionsClient.java
@@ -92,6 +92,11 @@ public SquareClientHttpResponse<SyncPagingIterable<WebhookSubscription>> list(
             QueryStringMapper.addQueryParameter(
                     httpUrl, "limit", request.getLimit().get(), false);
         }
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
                 .url(httpUrl.build())
                 .method("GET", null)
@@ -143,10 +148,14 @@ public SquareClientHttpResponse<CreateWebhookSubscriptionResponse> create(
      */
     public SquareClientHttpResponse<CreateWebhookSubscriptionResponse> create(
             CreateWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
-                .addPathSegments("v2/webhooks/subscriptions")
-                .build();
+                .addPathSegments("v2/webhooks/subscriptions");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -155,7 +164,7 @@ public SquareClientHttpResponse<CreateWebhookSubscriptionResponse> create(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -194,13 +203,17 @@ public SquareClientHttpResponse<GetWebhookSubscriptionResponse> get(GetSubscript
      */
     public SquareClientHttpResponse<GetWebhookSubscriptionResponse> get(
             GetSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("GET", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -238,11 +251,15 @@ public SquareClientHttpResponse<UpdateWebhookSubscriptionResponse> update(
      */
     public SquareClientHttpResponse<UpdateWebhookSubscriptionResponse> update(
             UpdateWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -251,7 +268,7 @@ public SquareClientHttpResponse<UpdateWebhookSubscriptionResponse> update(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("PUT", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -290,13 +307,17 @@ public SquareClientHttpResponse<DeleteWebhookSubscriptionResponse> delete(Delete
      */
     public SquareClientHttpResponse<DeleteWebhookSubscriptionResponse> delete(
             DeleteSubscriptionsRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
-                .addPathSegment(request.getSubscriptionId())
-                .build();
+                .addPathSegment(request.getSubscriptionId());
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         Request.Builder _requestBuilder = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("DELETE", null)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Accept", "application/json");
@@ -335,12 +356,16 @@ public SquareClientHttpResponse<UpdateWebhookSubscriptionSignatureKeyResponse> u
      */
     public SquareClientHttpResponse<UpdateWebhookSubscriptionSignatureKeyResponse> updateSignatureKey(
             UpdateWebhookSubscriptionSignatureKeyRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("signature-key")
-                .build();
+                .addPathSegments("signature-key");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -349,7 +374,7 @@ public SquareClientHttpResponse<UpdateWebhookSubscriptionSignatureKeyResponse> u
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
@@ -388,12 +413,16 @@ public SquareClientHttpResponse<TestWebhookSubscriptionResponse> test(TestWebhoo
      */
     public SquareClientHttpResponse<TestWebhookSubscriptionResponse> test(
             TestWebhookSubscriptionRequest request, RequestOptions requestOptions) {
-        HttpUrl httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
+        HttpUrl.Builder httpUrl = HttpUrl.parse(this.clientOptions.environment().getUrl())
                 .newBuilder()
                 .addPathSegments("v2/webhooks/subscriptions")
                 .addPathSegment(request.getSubscriptionId())
-                .addPathSegments("test")
-                .build();
+                .addPathSegments("test");
+        if (requestOptions != null) {
+            requestOptions.getQueryParameters().forEach((_key, _value) -> {
+                httpUrl.addQueryParameter(_key, _value);
+            });
+        }
         RequestBody body;
         try {
             body = RequestBody.create(
@@ -402,7 +431,7 @@ public SquareClientHttpResponse<TestWebhookSubscriptionResponse> test(
             throw new SquareException("Failed to serialize request", e);
         }
         Request okhttpRequest = new Request.Builder()
-                .url(httpUrl)
+                .url(httpUrl.build())
                 .method("POST", body)
                 .headers(Headers.of(clientOptions.headers(requestOptions)))
                 .addHeader("Content-Type", "application/json")
diff --git a/src/main/java/com/squareup/square/webhooks/types/CreateWebhookSubscriptionRequest.java b/src/main/java/com/squareup/square/webhooks/types/CreateWebhookSubscriptionRequest.java
index c40a8403..df89f5f4 100644
--- a/src/main/java/com/squareup/square/webhooks/types/CreateWebhookSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/CreateWebhookSubscriptionRequest.java
@@ -94,6 +94,10 @@ public interface SubscriptionStage {
     public interface _FinalStage {
         CreateWebhookSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies the <a href="api-endpoint:WebhookSubscriptions-CreateWebhookSubscription">CreateWebhookSubscription</a> request.</p>
          */
@@ -156,5 +160,17 @@ public _FinalStage idempotencyKey(Optional<String> idempotencyKey) {
         public CreateWebhookSubscriptionRequest build() {
             return new CreateWebhookSubscriptionRequest(idempotencyKey, subscription, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/DeleteSubscriptionsRequest.java b/src/main/java/com/squareup/square/webhooks/types/DeleteSubscriptionsRequest.java
index 2a6efabe..273a2de8 100644
--- a/src/main/java/com/squareup/square/webhooks/types/DeleteSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/DeleteSubscriptionsRequest.java
@@ -76,6 +76,10 @@ public interface SubscriptionIdStage {
 
     public interface _FinalStage {
         DeleteSubscriptionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage subscriptionId(@NotNull String subscriptionId) {
         public DeleteSubscriptionsRequest build() {
             return new DeleteSubscriptionsRequest(subscriptionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/GetSubscriptionsRequest.java b/src/main/java/com/squareup/square/webhooks/types/GetSubscriptionsRequest.java
index 2d4b3df9..aac23667 100644
--- a/src/main/java/com/squareup/square/webhooks/types/GetSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/GetSubscriptionsRequest.java
@@ -76,6 +76,10 @@ public interface SubscriptionIdStage {
 
     public interface _FinalStage {
         GetSubscriptionsRequest build();
+
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -109,5 +113,17 @@ public _FinalStage subscriptionId(@NotNull String subscriptionId) {
         public GetSubscriptionsRequest build() {
             return new GetSubscriptionsRequest(subscriptionId, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/ListEventTypesRequest.java b/src/main/java/com/squareup/square/webhooks/types/ListEventTypesRequest.java
index 676cb7ff..85739289 100644
--- a/src/main/java/com/squareup/square/webhooks/types/ListEventTypesRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/ListEventTypesRequest.java
@@ -120,5 +120,15 @@ public Builder apiVersion(Nullable<String> apiVersion) {
         public ListEventTypesRequest build() {
             return new ListEventTypesRequest(apiVersion, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/ListSubscriptionsRequest.java b/src/main/java/com/squareup/square/webhooks/types/ListSubscriptionsRequest.java
index b7726033..ecf4c762 100644
--- a/src/main/java/com/squareup/square/webhooks/types/ListSubscriptionsRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/ListSubscriptionsRequest.java
@@ -287,5 +287,15 @@ public Builder limit(Nullable<Integer> limit) {
         public ListSubscriptionsRequest build() {
             return new ListSubscriptionsRequest(cursor, includeDisabled, sortOrder, limit, additionalProperties);
         }
+
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/TestWebhookSubscriptionRequest.java b/src/main/java/com/squareup/square/webhooks/types/TestWebhookSubscriptionRequest.java
index d0ea3bb6..1d159b1e 100644
--- a/src/main/java/com/squareup/square/webhooks/types/TestWebhookSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/TestWebhookSubscriptionRequest.java
@@ -104,6 +104,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         TestWebhookSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The event type that will be used to test the <a href="entity:WebhookSubscription">Subscription</a>. The event type must be
          * contained in the list of event types in the <a href="entity:WebhookSubscription">Subscription</a>.</p>
@@ -188,5 +192,17 @@ public _FinalStage eventType(Optional<String> eventType) {
         public TestWebhookSubscriptionRequest build() {
             return new TestWebhookSubscriptionRequest(subscriptionId, eventType, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionRequest.java b/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionRequest.java
index c2db593c..fdf7470a 100644
--- a/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionRequest.java
@@ -94,6 +94,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         UpdateWebhookSubscriptionRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>The <a href="entity:WebhookSubscription">Subscription</a> to update.</p>
          */
@@ -156,5 +160,17 @@ public _FinalStage subscription(Optional<WebhookSubscription> subscription) {
         public UpdateWebhookSubscriptionRequest build() {
             return new UpdateWebhookSubscriptionRequest(subscriptionId, subscription, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionSignatureKeyRequest.java b/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionSignatureKeyRequest.java
index 17615624..7ae94a2f 100644
--- a/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionSignatureKeyRequest.java
+++ b/src/main/java/com/squareup/square/webhooks/types/UpdateWebhookSubscriptionSignatureKeyRequest.java
@@ -104,6 +104,10 @@ public interface SubscriptionIdStage {
     public interface _FinalStage {
         UpdateWebhookSubscriptionSignatureKeyRequest build();
 
+        _FinalStage additionalProperty(String key, Object value);
+
+        _FinalStage additionalProperties(Map<String, Object> additionalProperties);
+
         /**
          * <p>A unique string that identifies the <a href="api-endpoint:WebhookSubscriptions-UpdateWebhookSubscriptionSignatureKey">UpdateWebhookSubscriptionSignatureKey</a> request.</p>
          */
@@ -185,5 +189,17 @@ public UpdateWebhookSubscriptionSignatureKeyRequest build() {
             return new UpdateWebhookSubscriptionSignatureKeyRequest(
                     subscriptionId, idempotencyKey, additionalProperties);
         }
+
+        @java.lang.Override
+        public Builder additionalProperty(String key, Object value) {
+            this.additionalProperties.put(key, value);
+            return this;
+        }
+
+        @java.lang.Override
+        public Builder additionalProperties(Map<String, Object> additionalProperties) {
+            this.additionalProperties.putAll(additionalProperties);
+            return this;
+        }
     }
 }
diff --git a/src/test/java/com/squareup/square/StreamTest.java b/src/test/java/com/squareup/square/StreamTest.java
index d92bb955..aa28ce05 100644
--- a/src/test/java/com/squareup/square/StreamTest.java
+++ b/src/test/java/com/squareup/square/StreamTest.java
@@ -69,6 +69,25 @@ public void testSseStreamWithTerminator() {
         assertEquals(expectedEvents, actualEvents);
     }
 
+    @Test
+    public void testSseEventDiscriminatedStream() {
+        List<String> sseStrings = Arrays.asList(
+                mapToSseWithEvent("start", createMap("status", "pending")),
+                mapToSseWithEvent("end", createMap("status", "complete")));
+        String input = String.join("\n" + "\n", sseStrings);
+        StringReader sseInput = new StringReader(input);
+        Stream<Map> sseStream = Stream.fromSseWithEventDiscrimination(Map.class, sseInput, "event");
+        int expectedEvents = 2;
+        int actualEvents = 0;
+        for (Map eventData : sseStream) {
+            actualEvents++;
+            // Event-level discrimination includes the event field in the parsed result
+            assertTrue(eventData.containsKey("event"));
+            assertTrue(eventData.containsKey("data"));
+        }
+        assertEquals(expectedEvents, actualEvents);
+    }
+
     @Test
     public void testStreamResourceManagement() throws IOException {
         StringReader testInput = new StringReader("{\"test\":\"data\"}");
@@ -89,6 +108,10 @@ private static String mapToSse(Map map) {
         return "data: " + mapToJson(map);
     }
 
+    private static String mapToSseWithEvent(String eventType, Map data) {
+        return "event: " + eventType + "\n" + "data: " + mapToJson(data);
+    }
+
     private static Map<String, String> createMap(String key, String value) {
         Map<String, String> map = new HashMap<>();
         map.put(key, value);