diff --git a/samples/generated/v2/cloud_tasks.get_iam_policy.js b/samples/generated/v2/cloud_tasks.get_iam_policy.js
index 065af333..39f8865f 100644
--- a/samples/generated/v2/cloud_tasks.get_iam_policy.js
+++ b/samples/generated/v2/cloud_tasks.get_iam_policy.js
@@ -32,7 +32,7 @@ function main(resource) {
   // const resource = 'abc123'
   /**
    *  OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *  `GetIamPolicy`. This field is only used by Cloud IAM.
+   *  `GetIamPolicy`.
    */
   // const options = {}
 
diff --git a/samples/generated/v2/cloud_tasks.set_iam_policy.js b/samples/generated/v2/cloud_tasks.set_iam_policy.js
index 6d27f732..7d66dc61 100644
--- a/samples/generated/v2/cloud_tasks.set_iam_policy.js
+++ b/samples/generated/v2/cloud_tasks.set_iam_policy.js
@@ -37,6 +37,13 @@ function main(resource, policy) {
    *  might reject them.
    */
   // const policy = {}
+  /**
+   *  OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *  the fields in the mask will be modified. If no mask is provided, the
+   *  following default mask is used:
+   *  `paths: "bindings, etag"`
+   */
+  // const updateMask = {}
 
   // Imports the Tasks library
   const {CloudTasksClient} = require('@google-cloud/tasks').v2;
diff --git a/samples/generated/v2/snippet_metadata.google.cloud.tasks.v2.json b/samples/generated/v2/snippet_metadata.google.cloud.tasks.v2.json
index 678d7552..c3c4cc9f 100644
--- a/samples/generated/v2/snippet_metadata.google.cloud.tasks.v2.json
+++ b/samples/generated/v2/snippet_metadata.google.cloud.tasks.v2.json
@@ -406,7 +406,7 @@
       "segments": [
         {
           "start": 25,
-          "end": 59,
+          "end": 66,
           "type": "FULL"
         }
       ],
@@ -422,6 +422,10 @@
           {
             "name": "policy",
             "type": ".google.iam.v1.Policy"
+          },
+          {
+            "name": "update_mask",
+            "type": ".google.protobuf.FieldMask"
           }
         ],
         "resultType": ".google.iam.v1.Policy",
diff --git a/samples/generated/v2beta2/cloud_tasks.get_iam_policy.js b/samples/generated/v2beta2/cloud_tasks.get_iam_policy.js
index 3693de74..6a0f592a 100644
--- a/samples/generated/v2beta2/cloud_tasks.get_iam_policy.js
+++ b/samples/generated/v2beta2/cloud_tasks.get_iam_policy.js
@@ -32,7 +32,7 @@ function main(resource) {
   // const resource = 'abc123'
   /**
    *  OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *  `GetIamPolicy`. This field is only used by Cloud IAM.
+   *  `GetIamPolicy`.
    */
   // const options = {}
 
diff --git a/samples/generated/v2beta2/cloud_tasks.set_iam_policy.js b/samples/generated/v2beta2/cloud_tasks.set_iam_policy.js
index 23d2b767..bd8a96b6 100644
--- a/samples/generated/v2beta2/cloud_tasks.set_iam_policy.js
+++ b/samples/generated/v2beta2/cloud_tasks.set_iam_policy.js
@@ -37,6 +37,13 @@ function main(resource, policy) {
    *  might reject them.
    */
   // const policy = {}
+  /**
+   *  OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *  the fields in the mask will be modified. If no mask is provided, the
+   *  following default mask is used:
+   *  `paths: "bindings, etag"`
+   */
+  // const updateMask = {}
 
   // Imports the Tasks library
   const {CloudTasksClient} = require('@google-cloud/tasks').v2beta2;
diff --git a/samples/generated/v2beta2/snippet_metadata.google.cloud.tasks.v2beta2.json b/samples/generated/v2beta2/snippet_metadata.google.cloud.tasks.v2beta2.json
index 8776c8d2..e244c953 100644
--- a/samples/generated/v2beta2/snippet_metadata.google.cloud.tasks.v2beta2.json
+++ b/samples/generated/v2beta2/snippet_metadata.google.cloud.tasks.v2beta2.json
@@ -414,7 +414,7 @@
       "segments": [
         {
           "start": 25,
-          "end": 59,
+          "end": 66,
           "type": "FULL"
         }
       ],
@@ -430,6 +430,10 @@
           {
             "name": "policy",
             "type": ".google.iam.v1.Policy"
+          },
+          {
+            "name": "update_mask",
+            "type": ".google.protobuf.FieldMask"
           }
         ],
         "resultType": ".google.iam.v1.Policy",
diff --git a/samples/generated/v2beta3/cloud_tasks.get_iam_policy.js b/samples/generated/v2beta3/cloud_tasks.get_iam_policy.js
index 5a8f9ba3..a89bef3a 100644
--- a/samples/generated/v2beta3/cloud_tasks.get_iam_policy.js
+++ b/samples/generated/v2beta3/cloud_tasks.get_iam_policy.js
@@ -32,7 +32,7 @@ function main(resource) {
   // const resource = 'abc123'
   /**
    *  OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *  `GetIamPolicy`. This field is only used by Cloud IAM.
+   *  `GetIamPolicy`.
    */
   // const options = {}
 
diff --git a/samples/generated/v2beta3/cloud_tasks.set_iam_policy.js b/samples/generated/v2beta3/cloud_tasks.set_iam_policy.js
index b4d77d03..fe302d34 100644
--- a/samples/generated/v2beta3/cloud_tasks.set_iam_policy.js
+++ b/samples/generated/v2beta3/cloud_tasks.set_iam_policy.js
@@ -37,6 +37,13 @@ function main(resource, policy) {
    *  might reject them.
    */
   // const policy = {}
+  /**
+   *  OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *  the fields in the mask will be modified. If no mask is provided, the
+   *  following default mask is used:
+   *  `paths: "bindings, etag"`
+   */
+  // const updateMask = {}
 
   // Imports the Tasks library
   const {CloudTasksClient} = require('@google-cloud/tasks').v2beta3;
diff --git a/samples/generated/v2beta3/snippet_metadata.google.cloud.tasks.v2beta3.json b/samples/generated/v2beta3/snippet_metadata.google.cloud.tasks.v2beta3.json
index f76d5d76..ca6617ee 100644
--- a/samples/generated/v2beta3/snippet_metadata.google.cloud.tasks.v2beta3.json
+++ b/samples/generated/v2beta3/snippet_metadata.google.cloud.tasks.v2beta3.json
@@ -414,7 +414,7 @@
       "segments": [
         {
           "start": 25,
-          "end": 59,
+          "end": 66,
           "type": "FULL"
         }
       ],
@@ -430,6 +430,10 @@
           {
             "name": "policy",
             "type": ".google.iam.v1.Policy"
+          },
+          {
+            "name": "update_mask",
+            "type": ".google.protobuf.FieldMask"
           }
         ],
         "resultType": ".google.iam.v1.Policy",
diff --git a/src/v2/cloud_tasks_client.ts b/src/v2/cloud_tasks_client.ts
index 382a2db1..9f4652d8 100644
--- a/src/v2/cloud_tasks_client.ts
+++ b/src/v2/cloud_tasks_client.ts
@@ -1026,7 +1026,7 @@ export class CloudTasksClient {
    *   See the operation documentation for the appropriate value for this field.
    * @param {google.iam.v1.GetPolicyOptions} request.options
    *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *   `GetIamPolicy`. This field is only used by Cloud IAM.
+   *   `GetIamPolicy`.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1126,6 +1126,12 @@ export class CloudTasksClient {
    *   the policy is limited to a few 10s of KB. An empty policy is a
    *   valid policy but certain Cloud Platform services (such as Projects)
    *   might reject them.
+   * @param {google.protobuf.FieldMask} request.updateMask
+   *   OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *   the fields in the mask will be modified. If no mask is provided, the
+   *   following default mask is used:
+   *
+   *   `paths: "bindings, etag"`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
diff --git a/src/v2beta2/cloud_tasks_client.ts b/src/v2beta2/cloud_tasks_client.ts
index d2720632..9b026517 100644
--- a/src/v2beta2/cloud_tasks_client.ts
+++ b/src/v2beta2/cloud_tasks_client.ts
@@ -1047,7 +1047,7 @@ export class CloudTasksClient {
    *   See the operation documentation for the appropriate value for this field.
    * @param {google.iam.v1.GetPolicyOptions} request.options
    *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *   `GetIamPolicy`. This field is only used by Cloud IAM.
+   *   `GetIamPolicy`.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1147,6 +1147,12 @@ export class CloudTasksClient {
    *   the policy is limited to a few 10s of KB. An empty policy is a
    *   valid policy but certain Cloud Platform services (such as Projects)
    *   might reject them.
+   * @param {google.protobuf.FieldMask} request.updateMask
+   *   OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *   the fields in the mask will be modified. If no mask is provided, the
+   *   following default mask is used:
+   *
+   *   `paths: "bindings, etag"`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
diff --git a/src/v2beta3/cloud_tasks_client.ts b/src/v2beta3/cloud_tasks_client.ts
index 644dd575..84d84f03 100644
--- a/src/v2beta3/cloud_tasks_client.ts
+++ b/src/v2beta3/cloud_tasks_client.ts
@@ -1043,7 +1043,7 @@ export class CloudTasksClient {
    *   See the operation documentation for the appropriate value for this field.
    * @param {google.iam.v1.GetPolicyOptions} request.options
    *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *   `GetIamPolicy`. This field is only used by Cloud IAM.
+   *   `GetIamPolicy`.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1143,6 +1143,12 @@ export class CloudTasksClient {
    *   the policy is limited to a few 10s of KB. An empty policy is a
    *   valid policy but certain Cloud Platform services (such as Projects)
    *   might reject them.
+   * @param {google.protobuf.FieldMask} request.updateMask
+   *   OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
+   *   the fields in the mask will be modified. If no mask is provided, the
+   *   following default mask is used:
+   *
+   *   `paths: "bindings, etag"`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.