diff --git a/packages/google-cloud-retail/protos/protos.d.ts b/packages/google-cloud-retail/protos/protos.d.ts
index da9cee99d27..113813bb115 100644
--- a/packages/google-cloud-retail/protos/protos.d.ts
+++ b/packages/google-cloud-retail/protos/protos.d.ts
@@ -1405,7 +1405,7 @@ export namespace google {
                     constructor(properties?: google.cloud.retail.v2.IImportErrorsConfig);
 
                     /** ImportErrorsConfig gcsPrefix. */
-                    public gcsPrefix: string;
+                    public gcsPrefix?: (string|null);
 
                     /** ImportErrorsConfig destination. */
                     public destination?: "gcsPrefix";
@@ -6044,7 +6044,7 @@ export namespace google {
                     constructor(properties?: google.cloud.retail.v2alpha.IImportErrorsConfig);
 
                     /** ImportErrorsConfig gcsPrefix. */
-                    public gcsPrefix: string;
+                    public gcsPrefix?: (string|null);
 
                     /** ImportErrorsConfig destination. */
                     public destination?: "gcsPrefix";
@@ -10683,7 +10683,7 @@ export namespace google {
                     constructor(properties?: google.cloud.retail.v2beta.IImportErrorsConfig);
 
                     /** ImportErrorsConfig gcsPrefix. */
-                    public gcsPrefix: string;
+                    public gcsPrefix?: (string|null);
 
                     /** ImportErrorsConfig destination. */
                     public destination?: "gcsPrefix";
@@ -14088,19 +14088,19 @@ export namespace google {
             public selector: string;
 
             /** HttpRule get. */
-            public get: string;
+            public get?: (string|null);
 
             /** HttpRule put. */
-            public put: string;
+            public put?: (string|null);
 
             /** HttpRule post. */
-            public post: string;
+            public post?: (string|null);
 
             /** HttpRule delete. */
-            public delete: string;
+            public delete?: (string|null);
 
             /** HttpRule patch. */
-            public patch: string;
+            public patch?: (string|null);
 
             /** HttpRule custom. */
             public custom?: (google.api.ICustomHttpPattern|null);
@@ -19066,16 +19066,16 @@ export namespace google {
             constructor(properties?: google.protobuf.IValue);
 
             /** Value nullValue. */
-            public nullValue: (google.protobuf.NullValue|keyof typeof google.protobuf.NullValue);
+            public nullValue?: (google.protobuf.NullValue|keyof typeof google.protobuf.NullValue|null);
 
             /** Value numberValue. */
-            public numberValue: number;
+            public numberValue?: (number|null);
 
             /** Value stringValue. */
-            public stringValue: string;
+            public stringValue?: (string|null);
 
             /** Value boolValue. */
-            public boolValue: boolean;
+            public boolValue?: (boolean|null);
 
             /** Value structValue. */
             public structValue?: (google.protobuf.IStruct|null);
diff --git a/packages/google-cloud-retail/protos/protos.js b/packages/google-cloud-retail/protos/protos.js
index 7545289e638..1bbefd56c22 100644
--- a/packages/google-cloud-retail/protos/protos.js
+++ b/packages/google-cloud-retail/protos/protos.js
@@ -3231,11 +3231,11 @@
     
                         /**
                          * ImportErrorsConfig gcsPrefix.
-                         * @member {string} gcsPrefix
+                         * @member {string|null|undefined} gcsPrefix
                          * @memberof google.cloud.retail.v2.ImportErrorsConfig
                          * @instance
                          */
-                        ImportErrorsConfig.prototype.gcsPrefix = "";
+                        ImportErrorsConfig.prototype.gcsPrefix = null;
     
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
@@ -14439,11 +14439,11 @@
     
                         /**
                          * ImportErrorsConfig gcsPrefix.
-                         * @member {string} gcsPrefix
+                         * @member {string|null|undefined} gcsPrefix
                          * @memberof google.cloud.retail.v2alpha.ImportErrorsConfig
                          * @instance
                          */
-                        ImportErrorsConfig.prototype.gcsPrefix = "";
+                        ImportErrorsConfig.prototype.gcsPrefix = null;
     
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
@@ -25647,11 +25647,11 @@
     
                         /**
                          * ImportErrorsConfig gcsPrefix.
-                         * @member {string} gcsPrefix
+                         * @member {string|null|undefined} gcsPrefix
                          * @memberof google.cloud.retail.v2beta.ImportErrorsConfig
                          * @instance
                          */
-                        ImportErrorsConfig.prototype.gcsPrefix = "";
+                        ImportErrorsConfig.prototype.gcsPrefix = null;
     
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
@@ -33971,43 +33971,43 @@
     
                 /**
                  * HttpRule get.
-                 * @member {string} get
+                 * @member {string|null|undefined} get
                  * @memberof google.api.HttpRule
                  * @instance
                  */
-                HttpRule.prototype.get = "";
+                HttpRule.prototype.get = null;
     
                 /**
                  * HttpRule put.
-                 * @member {string} put
+                 * @member {string|null|undefined} put
                  * @memberof google.api.HttpRule
                  * @instance
                  */
-                HttpRule.prototype.put = "";
+                HttpRule.prototype.put = null;
     
                 /**
                  * HttpRule post.
-                 * @member {string} post
+                 * @member {string|null|undefined} post
                  * @memberof google.api.HttpRule
                  * @instance
                  */
-                HttpRule.prototype.post = "";
+                HttpRule.prototype.post = null;
     
                 /**
                  * HttpRule delete.
-                 * @member {string} delete
+                 * @member {string|null|undefined} delete
                  * @memberof google.api.HttpRule
                  * @instance
                  */
-                HttpRule.prototype["delete"] = "";
+                HttpRule.prototype["delete"] = null;
     
                 /**
                  * HttpRule patch.
-                 * @member {string} patch
+                 * @member {string|null|undefined} patch
                  * @memberof google.api.HttpRule
                  * @instance
                  */
-                HttpRule.prototype.patch = "";
+                HttpRule.prototype.patch = null;
     
                 /**
                  * HttpRule custom.
@@ -47027,35 +47027,35 @@
     
                 /**
                  * Value nullValue.
-                 * @member {google.protobuf.NullValue} nullValue
+                 * @member {google.protobuf.NullValue|null|undefined} nullValue
                  * @memberof google.protobuf.Value
                  * @instance
                  */
-                Value.prototype.nullValue = 0;
+                Value.prototype.nullValue = null;
     
                 /**
                  * Value numberValue.
-                 * @member {number} numberValue
+                 * @member {number|null|undefined} numberValue
                  * @memberof google.protobuf.Value
                  * @instance
                  */
-                Value.prototype.numberValue = 0;
+                Value.prototype.numberValue = null;
     
                 /**
                  * Value stringValue.
-                 * @member {string} stringValue
+                 * @member {string|null|undefined} stringValue
                  * @memberof google.protobuf.Value
                  * @instance
                  */
-                Value.prototype.stringValue = "";
+                Value.prototype.stringValue = null;
     
                 /**
                  * Value boolValue.
-                 * @member {boolean} boolValue
+                 * @member {boolean|null|undefined} boolValue
                  * @memberof google.protobuf.Value
                  * @instance
                  */
-                Value.prototype.boolValue = false;
+                Value.prototype.boolValue = null;
     
                 /**
                  * Value structValue.
diff --git a/packages/google-cloud-retail/src/v2/catalog_service_client.ts b/packages/google-cloud-retail/src/v2/catalog_service_client.ts
index 87b28f49839..79d5313de0a 100644
--- a/packages/google-cloud-retail/src/v2/catalog_service_client.ts
+++ b/packages/google-cloud-retail/src/v2/catalog_service_client.ts
@@ -236,13 +236,14 @@ export class CatalogServiceClient {
     const catalogServiceStubMethods = ['listCatalogs', 'updateCatalog'];
     for (const methodName of catalogServiceStubMethods) {
       const callPromise = this.catalogServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -408,11 +409,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'catalog.name': request.catalog!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'catalog.name': request.catalog!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateCatalog(request, options, callback);
   }
@@ -521,11 +521,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.listCatalogs(request, options, callback);
   }
@@ -578,11 +577,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.createStream(
@@ -646,17 +644,16 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     options = options || {};
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.asyncIterate(
       this.innerApiCalls['listCatalogs'] as GaxCall,
-      (request as unknown) as RequestType,
+      request as unknown as RequestType,
       callSettings
     ) as AsyncIterable<protos.google.cloud.retail.v2.ICatalog>;
   }
diff --git a/packages/google-cloud-retail/src/v2/prediction_service_client.ts b/packages/google-cloud-retail/src/v2/prediction_service_client.ts
index cbae29e9982..ad39a04e484 100644
--- a/packages/google-cloud-retail/src/v2/prediction_service_client.ts
+++ b/packages/google-cloud-retail/src/v2/prediction_service_client.ts
@@ -213,13 +213,14 @@ export class PredictionServiceClient {
     const predictionServiceStubMethods = ['predict'];
     for (const methodName of predictionServiceStubMethods) {
       const callPromise = this.predictionServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -462,11 +463,10 @@ export class PredictionServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      placement: request.placement || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        placement: request.placement || '',
+      });
     this.initialize();
     return this.innerApiCalls.predict(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2/product_service_client.ts b/packages/google-cloud-retail/src/v2/product_service_client.ts
index 02eb955de08..fb4959086a2 100644
--- a/packages/google-cloud-retail/src/v2/product_service_client.ts
+++ b/packages/google-cloud-retail/src/v2/product_service_client.ts
@@ -261,13 +261,14 @@ export class ProductServiceClient {
     ];
     for (const methodName of productServiceStubMethods) {
       const callPromise = this.productServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -436,11 +437,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.createProduct(request, options, callback);
   }
@@ -529,11 +529,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.getProduct(request, options, callback);
   }
@@ -630,11 +629,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'product.name': request.product!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'product.name': request.product!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateProduct(request, options, callback);
   }
@@ -725,11 +723,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.deleteProduct(request, options, callback);
   }
@@ -848,11 +845,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importProducts(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2/user_event_service_client.ts b/packages/google-cloud-retail/src/v2/user_event_service_client.ts
index c104d166949..c9d9e189ac0 100644
--- a/packages/google-cloud-retail/src/v2/user_event_service_client.ts
+++ b/packages/google-cloud-retail/src/v2/user_event_service_client.ts
@@ -279,13 +279,14 @@ export class UserEventServiceClient {
     ];
     for (const methodName of userEventServiceStubMethods) {
       const callPromise = this.userEventServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -438,11 +439,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.writeUserEvent(request, options, callback);
   }
@@ -541,11 +541,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.collectUserEvent(request, options, callback);
   }
@@ -680,11 +679,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.purgeUserEvents(request, options, callback);
   }
@@ -833,11 +831,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importUserEvents(request, options, callback);
   }
@@ -987,11 +984,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.rejoinUserEvents(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2alpha/catalog_service_client.ts b/packages/google-cloud-retail/src/v2alpha/catalog_service_client.ts
index f5125242fda..0b6999f8d91 100644
--- a/packages/google-cloud-retail/src/v2alpha/catalog_service_client.ts
+++ b/packages/google-cloud-retail/src/v2alpha/catalog_service_client.ts
@@ -236,13 +236,14 @@ export class CatalogServiceClient {
     const catalogServiceStubMethods = ['listCatalogs', 'updateCatalog'];
     for (const methodName of catalogServiceStubMethods) {
       const callPromise = this.catalogServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -414,11 +415,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'catalog.name': request.catalog!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'catalog.name': request.catalog!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateCatalog(request, options, callback);
   }
@@ -533,11 +533,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.listCatalogs(request, options, callback);
   }
@@ -590,11 +589,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.createStream(
@@ -658,17 +656,16 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     options = options || {};
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.asyncIterate(
       this.innerApiCalls['listCatalogs'] as GaxCall,
-      (request as unknown) as RequestType,
+      request as unknown as RequestType,
       callSettings
     ) as AsyncIterable<protos.google.cloud.retail.v2alpha.ICatalog>;
   }
diff --git a/packages/google-cloud-retail/src/v2alpha/prediction_service_client.ts b/packages/google-cloud-retail/src/v2alpha/prediction_service_client.ts
index 7bebb167ba2..c4c0f3007b9 100644
--- a/packages/google-cloud-retail/src/v2alpha/prediction_service_client.ts
+++ b/packages/google-cloud-retail/src/v2alpha/prediction_service_client.ts
@@ -213,13 +213,14 @@ export class PredictionServiceClient {
     const predictionServiceStubMethods = ['predict'];
     for (const methodName of predictionServiceStubMethods) {
       const callPromise = this.predictionServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -462,11 +463,10 @@ export class PredictionServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      placement: request.placement || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        placement: request.placement || '',
+      });
     this.initialize();
     return this.innerApiCalls.predict(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2alpha/product_service_client.ts b/packages/google-cloud-retail/src/v2alpha/product_service_client.ts
index 367078cfc4a..981173684ae 100644
--- a/packages/google-cloud-retail/src/v2alpha/product_service_client.ts
+++ b/packages/google-cloud-retail/src/v2alpha/product_service_client.ts
@@ -261,13 +261,14 @@ export class ProductServiceClient {
     ];
     for (const methodName of productServiceStubMethods) {
       const callPromise = this.productServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -442,11 +443,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.createProduct(request, options, callback);
   }
@@ -537,11 +537,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.getProduct(request, options, callback);
   }
@@ -644,11 +643,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'product.name': request.product!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'product.name': request.product!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateProduct(request, options, callback);
   }
@@ -745,11 +743,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.deleteProduct(request, options, callback);
   }
@@ -868,11 +865,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importProducts(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2alpha/user_event_service_client.ts b/packages/google-cloud-retail/src/v2alpha/user_event_service_client.ts
index 34b654f5b89..bd83f8dc2af 100644
--- a/packages/google-cloud-retail/src/v2alpha/user_event_service_client.ts
+++ b/packages/google-cloud-retail/src/v2alpha/user_event_service_client.ts
@@ -279,13 +279,14 @@ export class UserEventServiceClient {
     ];
     for (const methodName of userEventServiceStubMethods) {
       const callPromise = this.userEventServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -444,11 +445,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.writeUserEvent(request, options, callback);
   }
@@ -553,11 +553,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.collectUserEvent(request, options, callback);
   }
@@ -693,11 +692,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.purgeUserEvents(request, options, callback);
   }
@@ -846,11 +844,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importUserEvents(request, options, callback);
   }
@@ -1000,11 +997,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.rejoinUserEvents(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2beta/catalog_service_client.ts b/packages/google-cloud-retail/src/v2beta/catalog_service_client.ts
index e6979275172..e5c5a6aba58 100644
--- a/packages/google-cloud-retail/src/v2beta/catalog_service_client.ts
+++ b/packages/google-cloud-retail/src/v2beta/catalog_service_client.ts
@@ -236,13 +236,14 @@ export class CatalogServiceClient {
     const catalogServiceStubMethods = ['listCatalogs', 'updateCatalog'];
     for (const methodName of catalogServiceStubMethods) {
       const callPromise = this.catalogServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -414,11 +415,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'catalog.name': request.catalog!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'catalog.name': request.catalog!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateCatalog(request, options, callback);
   }
@@ -533,11 +533,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.listCatalogs(request, options, callback);
   }
@@ -590,11 +589,10 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.createStream(
@@ -658,17 +656,16 @@ export class CatalogServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     options = options || {};
     const callSettings = new gax.CallSettings(options);
     this.initialize();
     return this.descriptors.page.listCatalogs.asyncIterate(
       this.innerApiCalls['listCatalogs'] as GaxCall,
-      (request as unknown) as RequestType,
+      request as unknown as RequestType,
       callSettings
     ) as AsyncIterable<protos.google.cloud.retail.v2beta.ICatalog>;
   }
diff --git a/packages/google-cloud-retail/src/v2beta/prediction_service_client.ts b/packages/google-cloud-retail/src/v2beta/prediction_service_client.ts
index 34caddd4654..91dae2d7ec2 100644
--- a/packages/google-cloud-retail/src/v2beta/prediction_service_client.ts
+++ b/packages/google-cloud-retail/src/v2beta/prediction_service_client.ts
@@ -213,13 +213,14 @@ export class PredictionServiceClient {
     const predictionServiceStubMethods = ['predict'];
     for (const methodName of predictionServiceStubMethods) {
       const callPromise = this.predictionServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -462,11 +463,10 @@ export class PredictionServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      placement: request.placement || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        placement: request.placement || '',
+      });
     this.initialize();
     return this.innerApiCalls.predict(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2beta/product_service_client.ts b/packages/google-cloud-retail/src/v2beta/product_service_client.ts
index 4cad5dac5ed..604066c7139 100644
--- a/packages/google-cloud-retail/src/v2beta/product_service_client.ts
+++ b/packages/google-cloud-retail/src/v2beta/product_service_client.ts
@@ -261,13 +261,14 @@ export class ProductServiceClient {
     ];
     for (const methodName of productServiceStubMethods) {
       const callPromise = this.productServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -442,11 +443,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.createProduct(request, options, callback);
   }
@@ -537,11 +537,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.getProduct(request, options, callback);
   }
@@ -644,11 +643,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      'product.name': request.product!.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        'product.name': request.product!.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.updateProduct(request, options, callback);
   }
@@ -745,11 +743,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      name: request.name || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        name: request.name || '',
+      });
     this.initialize();
     return this.innerApiCalls.deleteProduct(request, options, callback);
   }
@@ -868,11 +865,10 @@ export class ProductServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importProducts(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/src/v2beta/user_event_service_client.ts b/packages/google-cloud-retail/src/v2beta/user_event_service_client.ts
index 116724fea44..ad15071aa50 100644
--- a/packages/google-cloud-retail/src/v2beta/user_event_service_client.ts
+++ b/packages/google-cloud-retail/src/v2beta/user_event_service_client.ts
@@ -279,13 +279,14 @@ export class UserEventServiceClient {
     ];
     for (const methodName of userEventServiceStubMethods) {
       const callPromise = this.userEventServiceStub.then(
-        stub => (...args: Array<{}>) => {
-          if (this._terminated) {
-            return Promise.reject('The client has already been closed.');
-          }
-          const func = stub[methodName];
-          return func.apply(stub, args);
-        },
+        stub =>
+          (...args: Array<{}>) => {
+            if (this._terminated) {
+              return Promise.reject('The client has already been closed.');
+            }
+            const func = stub[methodName];
+            return func.apply(stub, args);
+          },
         (err: Error | null | undefined) => () => {
           throw err;
         }
@@ -444,11 +445,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.writeUserEvent(request, options, callback);
   }
@@ -553,11 +553,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.collectUserEvent(request, options, callback);
   }
@@ -693,11 +692,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.purgeUserEvents(request, options, callback);
   }
@@ -846,11 +844,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.importUserEvents(request, options, callback);
   }
@@ -1000,11 +997,10 @@ export class UserEventServiceClient {
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers[
-      'x-goog-request-params'
-    ] = gax.routingHeader.fromParams({
-      parent: request.parent || '',
-    });
+    options.otherArgs.headers['x-goog-request-params'] =
+      gax.routingHeader.fromParams({
+        parent: request.parent || '',
+      });
     this.initialize();
     return this.innerApiCalls.rejoinUserEvents(request, options, callback);
   }
diff --git a/packages/google-cloud-retail/test/gapic_catalog_service_v2.ts b/packages/google-cloud-retail/test/gapic_catalog_service_v2.ts
index ff99a8a106f..154e29b2e4a 100644
--- a/packages/google-cloud-retail/test/gapic_catalog_service_v2.ts
+++ b/packages/google-cloud-retail/test/gapic_catalog_service_v2.ts
@@ -28,10 +28,9 @@ import {PassThrough} from 'stream';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -251,9 +250,8 @@ describe('v2.CatalogServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.Catalog()
       );
-      client.innerApiCalls.updateCatalog = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateCatalog =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateCatalog(
           request,
@@ -368,9 +366,8 @@ describe('v2.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
       ];
-      client.innerApiCalls.listCatalogs = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.listCatalogs =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.listCatalogs(
           request,
@@ -442,9 +439,8 @@ describe('v2.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.createStream = stubPageStreamingCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.createStream =
+        stubPageStreamingCall(expectedResponse);
       const stream = client.listCatalogsStream(request);
       const promise = new Promise((resolve, reject) => {
         const responses: protos.google.cloud.retail.v2.Catalog[] = [];
@@ -466,10 +462,9 @@ describe('v2.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -510,10 +505,9 @@ describe('v2.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -534,9 +528,8 @@ describe('v2.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(expectedResponse);
       const responses: protos.google.cloud.retail.v2.ICatalog[] = [];
       const iterable = client.listCatalogsAsync(request);
       for await (const resource of iterable) {
@@ -544,15 +537,15 @@ describe('v2.CatalogServiceClient', () => {
       }
       assert.deepStrictEqual(responses, expectedResponse);
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -569,10 +562,8 @@ describe('v2.CatalogServiceClient', () => {
       request.parent = '';
       const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('expected');
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        undefined,
-        expectedError
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(undefined, expectedError);
       const iterable = client.listCatalogsAsync(request);
       await assert.rejects(async () => {
         const responses: protos.google.cloud.retail.v2.ICatalog[] = [];
@@ -581,15 +572,15 @@ describe('v2.CatalogServiceClient', () => {
         }
       });
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
diff --git a/packages/google-cloud-retail/test/gapic_catalog_service_v2alpha.ts b/packages/google-cloud-retail/test/gapic_catalog_service_v2alpha.ts
index e92d12f8ea9..2c29e1bed77 100644
--- a/packages/google-cloud-retail/test/gapic_catalog_service_v2alpha.ts
+++ b/packages/google-cloud-retail/test/gapic_catalog_service_v2alpha.ts
@@ -28,10 +28,9 @@ import {PassThrough} from 'stream';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -251,9 +250,8 @@ describe('v2alpha.CatalogServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.Catalog()
       );
-      client.innerApiCalls.updateCatalog = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateCatalog =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateCatalog(
           request,
@@ -368,9 +366,8 @@ describe('v2alpha.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
       ];
-      client.innerApiCalls.listCatalogs = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.listCatalogs =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.listCatalogs(
           request,
@@ -442,9 +439,8 @@ describe('v2alpha.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.createStream = stubPageStreamingCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.createStream =
+        stubPageStreamingCall(expectedResponse);
       const stream = client.listCatalogsStream(request);
       const promise = new Promise((resolve, reject) => {
         const responses: protos.google.cloud.retail.v2alpha.Catalog[] = [];
@@ -469,10 +465,9 @@ describe('v2alpha.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -516,10 +511,9 @@ describe('v2alpha.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -540,9 +534,8 @@ describe('v2alpha.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2alpha.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(expectedResponse);
       const responses: protos.google.cloud.retail.v2alpha.ICatalog[] = [];
       const iterable = client.listCatalogsAsync(request);
       for await (const resource of iterable) {
@@ -550,15 +543,15 @@ describe('v2alpha.CatalogServiceClient', () => {
       }
       assert.deepStrictEqual(responses, expectedResponse);
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -575,10 +568,8 @@ describe('v2alpha.CatalogServiceClient', () => {
       request.parent = '';
       const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('expected');
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        undefined,
-        expectedError
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(undefined, expectedError);
       const iterable = client.listCatalogsAsync(request);
       await assert.rejects(async () => {
         const responses: protos.google.cloud.retail.v2alpha.ICatalog[] = [];
@@ -587,15 +578,15 @@ describe('v2alpha.CatalogServiceClient', () => {
         }
       });
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
diff --git a/packages/google-cloud-retail/test/gapic_catalog_service_v2beta.ts b/packages/google-cloud-retail/test/gapic_catalog_service_v2beta.ts
index 72bbb12c702..6433b142a5a 100644
--- a/packages/google-cloud-retail/test/gapic_catalog_service_v2beta.ts
+++ b/packages/google-cloud-retail/test/gapic_catalog_service_v2beta.ts
@@ -28,10 +28,9 @@ import {PassThrough} from 'stream';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -251,9 +250,8 @@ describe('v2beta.CatalogServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.Catalog()
       );
-      client.innerApiCalls.updateCatalog = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateCatalog =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateCatalog(
           request,
@@ -368,9 +366,8 @@ describe('v2beta.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
       ];
-      client.innerApiCalls.listCatalogs = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.listCatalogs =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.listCatalogs(
           request,
@@ -442,9 +439,8 @@ describe('v2beta.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.createStream = stubPageStreamingCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.createStream =
+        stubPageStreamingCall(expectedResponse);
       const stream = client.listCatalogsStream(request);
       const promise = new Promise((resolve, reject) => {
         const responses: protos.google.cloud.retail.v2beta.Catalog[] = [];
@@ -469,10 +465,9 @@ describe('v2beta.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -516,10 +511,9 @@ describe('v2beta.CatalogServiceClient', () => {
           .calledWith(client.innerApiCalls.listCatalogs, request)
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .createStream as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.createStream as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -540,9 +534,8 @@ describe('v2beta.CatalogServiceClient', () => {
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
         generateSampleMessage(new protos.google.cloud.retail.v2beta.Catalog()),
       ];
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        expectedResponse
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(expectedResponse);
       const responses: protos.google.cloud.retail.v2beta.ICatalog[] = [];
       const iterable = client.listCatalogsAsync(request);
       for await (const resource of iterable) {
@@ -550,15 +543,15 @@ describe('v2beta.CatalogServiceClient', () => {
       }
       assert.deepStrictEqual(responses, expectedResponse);
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
@@ -575,10 +568,8 @@ describe('v2beta.CatalogServiceClient', () => {
       request.parent = '';
       const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('expected');
-      client.descriptors.page.listCatalogs.asyncIterate = stubAsyncIterationCall(
-        undefined,
-        expectedError
-      );
+      client.descriptors.page.listCatalogs.asyncIterate =
+        stubAsyncIterationCall(undefined, expectedError);
       const iterable = client.listCatalogsAsync(request);
       await assert.rejects(async () => {
         const responses: protos.google.cloud.retail.v2beta.ICatalog[] = [];
@@ -587,15 +578,15 @@ describe('v2beta.CatalogServiceClient', () => {
         }
       });
       assert.deepStrictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[1],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[1],
         request
       );
       assert.strictEqual(
-        (client.descriptors.page.listCatalogs
-          .asyncIterate as SinonStub).getCall(0).args[2].otherArgs.headers[
-          'x-goog-request-params'
-        ],
+        (
+          client.descriptors.page.listCatalogs.asyncIterate as SinonStub
+        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
         expectedHeaderRequestParams
       );
     });
diff --git a/packages/google-cloud-retail/test/gapic_prediction_service_v2.ts b/packages/google-cloud-retail/test/gapic_prediction_service_v2.ts
index 46d7609dafd..96fcc59fd03 100644
--- a/packages/google-cloud-retail/test/gapic_prediction_service_v2.ts
+++ b/packages/google-cloud-retail/test/gapic_prediction_service_v2.ts
@@ -26,10 +26,9 @@ import * as predictionserviceModule from '../src';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -186,9 +185,8 @@ describe('v2.PredictionServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.PredictResponse()
       );
-      client.innerApiCalls.predict = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.predict =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.predict(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_prediction_service_v2alpha.ts b/packages/google-cloud-retail/test/gapic_prediction_service_v2alpha.ts
index d800b9a2bb3..05dd2edfb24 100644
--- a/packages/google-cloud-retail/test/gapic_prediction_service_v2alpha.ts
+++ b/packages/google-cloud-retail/test/gapic_prediction_service_v2alpha.ts
@@ -26,10 +26,9 @@ import * as predictionserviceModule from '../src';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -70,7 +69,8 @@ describe('v2alpha.PredictionServiceClient', () => {
   });
 
   it('should create a client with no option', () => {
-    const client = new predictionserviceModule.v2alpha.PredictionServiceClient();
+    const client =
+      new predictionserviceModule.v2alpha.PredictionServiceClient();
     assert(client);
   });
 
@@ -135,12 +135,11 @@ describe('v2alpha.PredictionServiceClient', () => {
 
   describe('predict', () => {
     it('invokes predict without error', async () => {
-      const client = new predictionserviceModule.v2alpha.PredictionServiceClient(
-        {
+      const client =
+        new predictionserviceModule.v2alpha.PredictionServiceClient({
           credentials: {client_email: 'bogus', private_key: 'bogus'},
           projectId: 'bogus',
-        }
-      );
+        });
       client.initialize();
       const request = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.PredictRequest()
@@ -168,12 +167,11 @@ describe('v2alpha.PredictionServiceClient', () => {
     });
 
     it('invokes predict without error using callback', async () => {
-      const client = new predictionserviceModule.v2alpha.PredictionServiceClient(
-        {
+      const client =
+        new predictionserviceModule.v2alpha.PredictionServiceClient({
           credentials: {client_email: 'bogus', private_key: 'bogus'},
           projectId: 'bogus',
-        }
-      );
+        });
       client.initialize();
       const request = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.PredictRequest()
@@ -190,9 +188,8 @@ describe('v2alpha.PredictionServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.PredictResponse()
       );
-      client.innerApiCalls.predict = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.predict =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.predict(
           request,
@@ -218,12 +215,11 @@ describe('v2alpha.PredictionServiceClient', () => {
     });
 
     it('invokes predict with error', async () => {
-      const client = new predictionserviceModule.v2alpha.PredictionServiceClient(
-        {
+      const client =
+        new predictionserviceModule.v2alpha.PredictionServiceClient({
           credentials: {client_email: 'bogus', private_key: 'bogus'},
           projectId: 'bogus',
-        }
-      );
+        });
       client.initialize();
       const request = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.PredictRequest()
@@ -256,12 +252,11 @@ describe('v2alpha.PredictionServiceClient', () => {
         location: 'locationValue',
         catalog: 'catalogValue',
       };
-      const client = new predictionserviceModule.v2alpha.PredictionServiceClient(
-        {
+      const client =
+        new predictionserviceModule.v2alpha.PredictionServiceClient({
           credentials: {client_email: 'bogus', private_key: 'bogus'},
           projectId: 'bogus',
-        }
-      );
+        });
       client.initialize();
       client.pathTemplates.catalogPathTemplate.render = sinon
         .stub()
@@ -324,12 +319,11 @@ describe('v2alpha.PredictionServiceClient', () => {
         branch: 'branchValue',
         product: 'productValue',
       };
-      const client = new predictionserviceModule.v2alpha.PredictionServiceClient(
-        {
+      const client =
+        new predictionserviceModule.v2alpha.PredictionServiceClient({
           credentials: {client_email: 'bogus', private_key: 'bogus'},
           projectId: 'bogus',
-        }
-      );
+        });
       client.initialize();
       client.pathTemplates.productPathTemplate.render = sinon
         .stub()
diff --git a/packages/google-cloud-retail/test/gapic_prediction_service_v2beta.ts b/packages/google-cloud-retail/test/gapic_prediction_service_v2beta.ts
index 681fb26fbf6..03ca999805f 100644
--- a/packages/google-cloud-retail/test/gapic_prediction_service_v2beta.ts
+++ b/packages/google-cloud-retail/test/gapic_prediction_service_v2beta.ts
@@ -26,10 +26,9 @@ import * as predictionserviceModule from '../src';
 import {protobuf} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -190,9 +189,8 @@ describe('v2beta.PredictionServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.PredictResponse()
       );
-      client.innerApiCalls.predict = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.predict =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.predict(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_product_service_v2.ts b/packages/google-cloud-retail/test/gapic_product_service_v2.ts
index dba06a83fbe..223212fbe59 100644
--- a/packages/google-cloud-retail/test/gapic_product_service_v2.ts
+++ b/packages/google-cloud-retail/test/gapic_product_service_v2.ts
@@ -26,10 +26,9 @@ import * as productserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.Product()
       );
-      client.innerApiCalls.createProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.createProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.createProduct(
           request,
@@ -330,9 +328,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.Product()
       );
-      client.innerApiCalls.getProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.getProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.getProduct(
           request,
@@ -444,9 +441,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.Product()
       );
-      client.innerApiCalls.updateProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateProduct(
           request,
@@ -557,9 +553,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.protobuf.Empty()
       );
-      client.innerApiCalls.deleteProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.deleteProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.deleteProduct(
           request,
@@ -638,9 +633,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importProducts(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -672,9 +666,8 @@ describe('v2.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importProducts(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_product_service_v2alpha.ts b/packages/google-cloud-retail/test/gapic_product_service_v2alpha.ts
index 3f708cc3314..98b5cbd6de0 100644
--- a/packages/google-cloud-retail/test/gapic_product_service_v2alpha.ts
+++ b/packages/google-cloud-retail/test/gapic_product_service_v2alpha.ts
@@ -26,10 +26,9 @@ import * as productserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.Product()
       );
-      client.innerApiCalls.createProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.createProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.createProduct(
           request,
@@ -330,9 +328,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.Product()
       );
-      client.innerApiCalls.getProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.getProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.getProduct(
           request,
@@ -444,9 +441,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.Product()
       );
-      client.innerApiCalls.updateProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateProduct(
           request,
@@ -557,9 +553,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.protobuf.Empty()
       );
-      client.innerApiCalls.deleteProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.deleteProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.deleteProduct(
           request,
@@ -638,9 +633,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importProducts(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -672,9 +666,8 @@ describe('v2alpha.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importProducts(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_product_service_v2beta.ts b/packages/google-cloud-retail/test/gapic_product_service_v2beta.ts
index 6844b31681b..0fb59443cd8 100644
--- a/packages/google-cloud-retail/test/gapic_product_service_v2beta.ts
+++ b/packages/google-cloud-retail/test/gapic_product_service_v2beta.ts
@@ -26,10 +26,9 @@ import * as productserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.Product()
       );
-      client.innerApiCalls.createProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.createProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.createProduct(
           request,
@@ -330,9 +328,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.Product()
       );
-      client.innerApiCalls.getProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.getProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.getProduct(
           request,
@@ -444,9 +441,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.Product()
       );
-      client.innerApiCalls.updateProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.updateProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.updateProduct(
           request,
@@ -557,9 +553,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.protobuf.Empty()
       );
-      client.innerApiCalls.deleteProduct = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.deleteProduct =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.deleteProduct(
           request,
@@ -638,9 +633,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importProducts(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -672,9 +666,8 @@ describe('v2beta.ProductServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importProducts = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importProducts =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importProducts(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_user_event_service_v2.ts b/packages/google-cloud-retail/test/gapic_user_event_service_v2.ts
index 7fde3d9fa31..246309144e2 100644
--- a/packages/google-cloud-retail/test/gapic_user_event_service_v2.ts
+++ b/packages/google-cloud-retail/test/gapic_user_event_service_v2.ts
@@ -26,10 +26,9 @@ import * as usereventserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2.UserEvent()
       );
-      client.innerApiCalls.writeUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.writeUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.writeUserEvent(
           request,
@@ -330,9 +328,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.api.HttpBody()
       );
-      client.innerApiCalls.collectUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.collectUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.collectUserEvent(
           request,
@@ -408,9 +405,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.purgeUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -442,9 +438,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.purgeUserEvents(
           request,
@@ -604,9 +599,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -638,9 +632,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importUserEvents(
           request,
@@ -800,9 +793,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.rejoinUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -834,9 +826,8 @@ describe('v2.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.rejoinUserEvents(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_user_event_service_v2alpha.ts b/packages/google-cloud-retail/test/gapic_user_event_service_v2alpha.ts
index 7aec2211deb..91225ec816b 100644
--- a/packages/google-cloud-retail/test/gapic_user_event_service_v2alpha.ts
+++ b/packages/google-cloud-retail/test/gapic_user_event_service_v2alpha.ts
@@ -26,10 +26,9 @@ import * as usereventserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2alpha.UserEvent()
       );
-      client.innerApiCalls.writeUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.writeUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.writeUserEvent(
           request,
@@ -330,9 +328,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.api.HttpBody()
       );
-      client.innerApiCalls.collectUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.collectUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.collectUserEvent(
           request,
@@ -408,9 +405,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.purgeUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -442,9 +438,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.purgeUserEvents(
           request,
@@ -604,9 +599,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -638,9 +632,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importUserEvents(
           request,
@@ -800,9 +793,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.rejoinUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -834,9 +826,8 @@ describe('v2alpha.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.rejoinUserEvents(
           request,
diff --git a/packages/google-cloud-retail/test/gapic_user_event_service_v2beta.ts b/packages/google-cloud-retail/test/gapic_user_event_service_v2beta.ts
index 29329e9e4c4..fd1b4979a08 100644
--- a/packages/google-cloud-retail/test/gapic_user_event_service_v2beta.ts
+++ b/packages/google-cloud-retail/test/gapic_user_event_service_v2beta.ts
@@ -26,10 +26,9 @@ import * as usereventserviceModule from '../src';
 import {protobuf, LROperation, operationsProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (instance.constructor as typeof protobuf.Message).toObject(
-    instance as protobuf.Message<T>,
-    {defaults: true}
-  );
+  const filledObject = (
+    instance.constructor as typeof protobuf.Message
+  ).toObject(instance as protobuf.Message<T>, {defaults: true});
   return (instance.constructor as typeof protobuf.Message).fromObject(
     filledObject
   ) as T;
@@ -218,9 +217,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.cloud.retail.v2beta.UserEvent()
       );
-      client.innerApiCalls.writeUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.writeUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.writeUserEvent(
           request,
@@ -330,9 +328,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.api.HttpBody()
       );
-      client.innerApiCalls.collectUserEvent = stubSimpleCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.collectUserEvent =
+        stubSimpleCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.collectUserEvent(
           request,
@@ -408,9 +405,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.purgeUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -442,9 +438,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.purgeUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.purgeUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.purgeUserEvents(
           request,
@@ -604,9 +599,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.importUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -638,9 +632,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.importUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.importUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.importUserEvents(
           request,
@@ -800,9 +793,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCall(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCall(expectedResponse);
       const [operation] = await client.rejoinUserEvents(request);
       const [response] = await operation.promise();
       assert.deepStrictEqual(response, expectedResponse);
@@ -834,9 +826,8 @@ describe('v2beta.UserEventServiceClient', () => {
       const expectedResponse = generateSampleMessage(
         new protos.google.longrunning.Operation()
       );
-      client.innerApiCalls.rejoinUserEvents = stubLongRunningCallWithCallback(
-        expectedResponse
-      );
+      client.innerApiCalls.rejoinUserEvents =
+        stubLongRunningCallWithCallback(expectedResponse);
       const promise = new Promise((resolve, reject) => {
         client.rejoinUserEvents(
           request,