chore: Update discovery artifacts (#1425)

## Deleted keys were detected in the following stable discovery artifacts:
admin directory_v1 https://github.com/googleapis/google-api-python-client/commit/1534f8926019f43dc87a29c1ca32191884556e3b
bigquery v2 https://github.com/googleapis/google-api-python-client/commit/59c51e319602741632201d2ce61a6b03f13e4003
file v1 https://github.com/googleapis/google-api-python-client/commit/0cd409a2d15c68aca3ea864400fc4772b9b4e503
memcache v1 https://github.com/googleapis/google-api-python-client/commit/665ce5b47b9b3238dcfa201b9343bf6447df5994
youtube v3 https://github.com/googleapis/google-api-python-client/commit/5046950872559fe93b954dc9a4f71fd724176247

## Deleted keys were detected in the following pre-stable discovery artifacts:
analyticsadmin v1alpha https://github.com/googleapis/google-api-python-client/commit/934358e5c041ffd1449e7c744463e61e94381ed5
documentai v1beta3 https://github.com/googleapis/google-api-python-client/commit/e8aaabbc7670aefc4a745916fccb31424745f748
file v1beta1 https://github.com/googleapis/google-api-python-client/commit/0cd409a2d15c68aca3ea864400fc4772b9b4e503
memcache v1beta2 https://github.com/googleapis/google-api-python-client/commit/665ce5b47b9b3238dcfa201b9343bf6447df5994
networkconnectivity v1alpha1 https://github.com/googleapis/google-api-python-client/commit/2cc462638aec61f4e775bfce883e725b104eeabb

## Discovery Artifact Change Summary:
feat(admin): update the api https://github.com/googleapis/google-api-python-client/commit/1534f8926019f43dc87a29c1ca32191884556e3b
feat(alertcenter): update the api https://github.com/googleapis/google-api-python-client/commit/7a488d3f0deef3e1f106cff63b1e4f66ad1727bb
feat(analyticsadmin): update the api https://github.com/googleapis/google-api-python-client/commit/934358e5c041ffd1449e7c744463e61e94381ed5
feat(analyticsdata): update the api https://github.com/googleapis/google-api-python-client/commit/40f712130674cec09c1dd7560f69a330a335b226
feat(androiddeviceprovisioning): update the api https://github.com/googleapis/google-api-python-client/commit/81a0002a7051aeab647a3296fb18ce7973bf7137
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/2e6c78a93b2c0ee7001eb163ec95f9afc8f35575
feat(appengine): update the api https://github.com/googleapis/google-api-python-client/commit/125f74a61a94af17c01930841a79db46d3a059c5
feat(bigquery): update the api https://github.com/googleapis/google-api-python-client/commit/59c51e319602741632201d2ce61a6b03f13e4003
feat(cloudasset): update the api https://github.com/googleapis/google-api-python-client/commit/e615264971ccee6eb9b450fe3d85614209c0fee8
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/ceddaccf23eb8b809688907cfdef8906cd77d65d
feat(cloudidentity): update the api https://github.com/googleapis/google-api-python-client/commit/22cd08b69b034c2cdfd854e1ac784f834539db3a
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/f494c63a42dc418559292c6269289317d9cebc23
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/e8aaabbc7670aefc4a745916fccb31424745f748
feat(drive): update the api https://github.com/googleapis/google-api-python-client/commit/72cab88ce591d906ea1cfcbe4dee354cccb623f2
feat(file): update the api https://github.com/googleapis/google-api-python-client/commit/0cd409a2d15c68aca3ea864400fc4772b9b4e503
feat(firebaseappcheck): update the api https://github.com/googleapis/google-api-python-client/commit/9a0131b2326327109d1ba7af97b1f4808dd7a898
feat(healthcare): update the api https://github.com/googleapis/google-api-python-client/commit/45ee6b28b86a43f44c707e15a7e06fdf8fce6a0f
feat(ideahub): update the api https://github.com/googleapis/google-api-python-client/commit/73b86d9d37f33aeaed74772d0319ba1350e54ed5
feat(managedidentities): update the api https://github.com/googleapis/google-api-python-client/commit/a07ed4558c93cb8f7fae49c7b353f46ccfea6c10
feat(memcache): update the api https://github.com/googleapis/google-api-python-client/commit/665ce5b47b9b3238dcfa201b9343bf6447df5994
feat(metastore): update the api https://github.com/googleapis/google-api-python-client/commit/9fd5ffbf37fb052323f5fa68d307c68391c519ac
feat(ml): update the api https://github.com/googleapis/google-api-python-client/commit/cf54d564915a558569c093287b448a7819e215f6
feat(monitoring): update the api https://github.com/googleapis/google-api-python-client/commit/d1ffbfc041f23f904cd8bc35a450871b2909473b
feat(networkconnectivity): update the api https://github.com/googleapis/google-api-python-client/commit/2cc462638aec61f4e775bfce883e725b104eeabb
feat(notebooks): update the api https://github.com/googleapis/google-api-python-client/commit/831ba938855aa4bdefafedf63e01af43350e7ed2
feat(ondemandscanning): update the api https://github.com/googleapis/google-api-python-client/commit/c04b4023477393cbb41984b14e0c734fc8587d45
feat(paymentsresellersubscription): update the api https://github.com/googleapis/google-api-python-client/commit/2cd5b1c2ef524f3ab00630508710cce7bee53574
feat(prod_tt_sasportal): update the api https://github.com/googleapis/google-api-python-client/commit/8b6bd24e57a79f470c750ad04052f79a3cafe0fa
feat(realtimebidding): update the api https://github.com/googleapis/google-api-python-client/commit/fd514dc8d86182dc17698f3293144928535f709c
feat(reseller): update the api https://github.com/googleapis/google-api-python-client/commit/20226c4401956732772e2a563c7920666135e605
feat(sasportal): update the api https://github.com/googleapis/google-api-python-client/commit/38d5156350b79a9933b2806f4bbe443043a33185
feat(sts): update the api https://github.com/googleapis/google-api-python-client/commit/190e13ebe5a4660d8825d3a8708559077a342bdf
feat(transcoder): update the api https://github.com/googleapis/google-api-python-client/commit/fbcacce6a17c1cae45b22f4a2058e730ec84b55a
feat(youtube): update the api https://github.com/googleapis/google-api-python-client/commit/5046950872559fe93b954dc9a4f71fd724176247
diff --git a/docs/dyn/cloudidentity_v1beta1.groups.html b/docs/dyn/cloudidentity_v1beta1.groups.html
index b03faa6..4b80507 100644
--- a/docs/dyn/cloudidentity_v1beta1.groups.html
+++ b/docs/dyn/cloudidentity_v1beta1.groups.html
@@ -127,7 +127,7 @@
   "additionalGroupKeys": [ # Additional entity key aliases for a Group.
     { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s.
       "id": "A String", # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source's requirements. Must be unique within a `namespace`.
-      "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+      "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
     },
   ],
   "createTime": "A String", # Output only. The time when the `Group` was created.
@@ -147,13 +147,20 @@
   },
   "groupKey": { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s. # Required. Immutable. The `EntityKey` of the `Group`.
     "id": "A String", # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source's requirements. Must be unique within a `namespace`.
-    "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+    "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
   },
   "labels": { # Required. One or more label entries that apply to the Group. Currently supported labels contain a key with an empty value. Google Groups are the default type of group and have a label with a key of `cloudidentity.googleapis.com/groups.discussion_forum` and an empty value. Existing Google Groups can have an additional label with a key of `cloudidentity.googleapis.com/groups.security` and an empty value added to them. **This is an immutable change and the security label cannot be removed once added.** Dynamic groups have a label with a key of `cloudidentity.googleapis.com/groups.dynamic`. Identity-mapped groups for Cloud Search have a label with a key of `system/groups/external` and an empty value.
     "a_key": "A String",
   },
   "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of the `Group`. Shall be of the form `groups/{group_id}`.
   "parent": "A String", # Required. Immutable. The resource name of the entity under which this `Group` resides in the Cloud Identity resource hierarchy. Must be of the form `identitysources/{identity_source_id}` for external- identity-mapped groups or `customers/{customer_id}` for Google Groups. The `customer_id` must begin with "C" (for example, 'C046psxkn').
+  "posixGroups": [ # Optional. The POSIX groups associated with the `Group`.
+    { # POSIX Group definition to represent a group in a POSIX compliant system.
+      "gid": "A String", # GID of the POSIX group.
+      "name": "A String", # Name of the POSIX group.
+      "systemId": "A String", # System identifier for which group name and gid apply to. If not specified it will default to empty value.
+    },
+  ],
   "updateTime": "A String", # Output only. The time when the `Group` was last updated.
 }
 
@@ -244,7 +251,7 @@
   "additionalGroupKeys": [ # Additional entity key aliases for a Group.
     { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s.
       "id": "A String", # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source's requirements. Must be unique within a `namespace`.
-      "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+      "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
     },
   ],
   "createTime": "A String", # Output only. The time when the `Group` was created.
@@ -264,13 +271,20 @@
   },
   "groupKey": { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s. # Required. Immutable. The `EntityKey` of the `Group`.
     "id": "A String", # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source's requirements. Must be unique within a `namespace`.
-    "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+    "namespace": "A String", # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
   },
   "labels": { # Required. One or more label entries that apply to the Group. Currently supported labels contain a key with an empty value. Google Groups are the default type of group and have a label with a key of `cloudidentity.googleapis.com/groups.discussion_forum` and an empty value. Existing Google Groups can have an additional label with a key of `cloudidentity.googleapis.com/groups.security` and an empty value added to them. **This is an immutable change and the security label cannot be removed once added.** Dynamic groups have a label with a key of `cloudidentity.googleapis.com/groups.dynamic`. Identity-mapped groups for Cloud Search have a label with a key of `system/groups/external` and an empty value.
     "a_key": "A String",
   },
   "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of the `Group`. Shall be of the form `groups/{group_id}`.
   "parent": "A String", # Required. Immutable. The resource name of the entity under which this `Group` resides in the Cloud Identity resource hierarchy. Must be of the form `identitysources/{identity_source_id}` for external- identity-mapped groups or `customers/{customer_id}` for Google Groups. The `customer_id` must begin with "C" (for example, 'C046psxkn').
+  "posixGroups": [ # Optional. The POSIX groups associated with the `Group`.
+    { # POSIX Group definition to represent a group in a POSIX compliant system.
+      "gid": "A String", # GID of the POSIX group.
+      "name": "A String", # Name of the POSIX group.
+      "systemId": "A String", # System identifier for which group name and gid apply to. If not specified it will default to empty value.
+    },
+  ],
   "updateTime": "A String", # Output only. The time when the `Group` was last updated.
 }</pre>
 </div>
@@ -302,7 +316,7 @@
       &quot;additionalGroupKeys&quot;: [ # Additional entity key aliases for a Group.
         { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s.
           &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-          &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+          &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
         },
       ],
       &quot;createTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was created.
@@ -322,13 +336,20 @@
       },
       &quot;groupKey&quot;: { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s. # Required. Immutable. The `EntityKey` of the `Group`.
         &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-        &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+        &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
       },
       &quot;labels&quot;: { # Required. One or more label entries that apply to the Group. Currently supported labels contain a key with an empty value. Google Groups are the default type of group and have a label with a key of `cloudidentity.googleapis.com/groups.discussion_forum` and an empty value. Existing Google Groups can have an additional label with a key of `cloudidentity.googleapis.com/groups.security` and an empty value added to them. **This is an immutable change and the security label cannot be removed once added.** Dynamic groups have a label with a key of `cloudidentity.googleapis.com/groups.dynamic`. Identity-mapped groups for Cloud Search have a label with a key of `system/groups/external` and an empty value.
         &quot;a_key&quot;: &quot;A String&quot;,
       },
       &quot;name&quot;: &quot;A String&quot;, # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of the `Group`. Shall be of the form `groups/{group_id}`.
       &quot;parent&quot;: &quot;A String&quot;, # Required. Immutable. The resource name of the entity under which this `Group` resides in the Cloud Identity resource hierarchy. Must be of the form `identitysources/{identity_source_id}` for external- identity-mapped groups or `customers/{customer_id}` for Google Groups. The `customer_id` must begin with &quot;C&quot; (for example, &#x27;C046psxkn&#x27;).
+      &quot;posixGroups&quot;: [ # Optional. The POSIX groups associated with the `Group`.
+        { # POSIX Group definition to represent a group in a POSIX compliant system.
+          &quot;gid&quot;: &quot;A String&quot;, # GID of the POSIX group.
+          &quot;name&quot;: &quot;A String&quot;, # Name of the POSIX group.
+          &quot;systemId&quot;: &quot;A String&quot;, # System identifier for which group name and gid apply to. If not specified it will default to empty value.
+        },
+      ],
       &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was last updated.
     },
   ],
@@ -356,7 +377,7 @@
 
 Args:
   groupKey_id: string, The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-  groupKey_namespace: string, The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+  groupKey_namespace: string, The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -383,7 +404,7 @@
   &quot;additionalGroupKeys&quot;: [ # Additional entity key aliases for a Group.
     { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s.
       &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-      &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+      &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
     },
   ],
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was created.
@@ -403,17 +424,24 @@
   },
   &quot;groupKey&quot;: { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s. # Required. Immutable. The `EntityKey` of the `Group`.
     &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-    &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+    &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
   },
   &quot;labels&quot;: { # Required. One or more label entries that apply to the Group. Currently supported labels contain a key with an empty value. Google Groups are the default type of group and have a label with a key of `cloudidentity.googleapis.com/groups.discussion_forum` and an empty value. Existing Google Groups can have an additional label with a key of `cloudidentity.googleapis.com/groups.security` and an empty value added to them. **This is an immutable change and the security label cannot be removed once added.** Dynamic groups have a label with a key of `cloudidentity.googleapis.com/groups.dynamic`. Identity-mapped groups for Cloud Search have a label with a key of `system/groups/external` and an empty value.
     &quot;a_key&quot;: &quot;A String&quot;,
   },
   &quot;name&quot;: &quot;A String&quot;, # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of the `Group`. Shall be of the form `groups/{group_id}`.
   &quot;parent&quot;: &quot;A String&quot;, # Required. Immutable. The resource name of the entity under which this `Group` resides in the Cloud Identity resource hierarchy. Must be of the form `identitysources/{identity_source_id}` for external- identity-mapped groups or `customers/{customer_id}` for Google Groups. The `customer_id` must begin with &quot;C&quot; (for example, &#x27;C046psxkn&#x27;).
+  &quot;posixGroups&quot;: [ # Optional. The POSIX groups associated with the `Group`.
+    { # POSIX Group definition to represent a group in a POSIX compliant system.
+      &quot;gid&quot;: &quot;A String&quot;, # GID of the POSIX group.
+      &quot;name&quot;: &quot;A String&quot;, # Name of the POSIX group.
+      &quot;systemId&quot;: &quot;A String&quot;, # System identifier for which group name and gid apply to. If not specified it will default to empty value.
+    },
+  ],
   &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was last updated.
 }
 
-  updateMask: string, Required. The fully-qualified names of fields to update. May only contain the following fields: `display_name`, `description`.
+  updateMask: string, Required. The fully-qualified names of fields to update. May only contain the following fields: `display_name`, `description`, `labels`.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -469,7 +497,7 @@
       &quot;additionalGroupKeys&quot;: [ # Additional entity key aliases for a Group.
         { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s.
           &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-          &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+          &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
         },
       ],
       &quot;createTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was created.
@@ -489,13 +517,20 @@
       },
       &quot;groupKey&quot;: { # A unique identifier for an entity in the Cloud Identity Groups API. An entity can represent either a group with an optional `namespace` or a user without a `namespace`. The combination of `id` and `namespace` must be unique; however, the same `id` can be used with different `namespace`s. # Required. Immutable. The `EntityKey` of the `Group`.
         &quot;id&quot;: &quot;A String&quot;, # The ID of the entity. For Google-managed entities, the `id` must be the email address of an existing group or user. For external-identity-mapped entities, the `id` must be a string conforming to the Identity Source&#x27;s requirements. Must be unique within a `namespace`.
-        &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}.
+        &quot;namespace&quot;: &quot;A String&quot;, # The namespace in which the entity exists. If not specified, the `EntityKey` represents a Google-managed entity such as a Google user or a Google Group. If specified, the `EntityKey` represents an external-identity-mapped group. The namespace must correspond to an identity source created in Admin Console and must be in the form of `identitysources/{identity_source_id}`.
       },
       &quot;labels&quot;: { # Required. One or more label entries that apply to the Group. Currently supported labels contain a key with an empty value. Google Groups are the default type of group and have a label with a key of `cloudidentity.googleapis.com/groups.discussion_forum` and an empty value. Existing Google Groups can have an additional label with a key of `cloudidentity.googleapis.com/groups.security` and an empty value added to them. **This is an immutable change and the security label cannot be removed once added.** Dynamic groups have a label with a key of `cloudidentity.googleapis.com/groups.dynamic`. Identity-mapped groups for Cloud Search have a label with a key of `system/groups/external` and an empty value.
         &quot;a_key&quot;: &quot;A String&quot;,
       },
       &quot;name&quot;: &quot;A String&quot;, # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of the `Group`. Shall be of the form `groups/{group_id}`.
       &quot;parent&quot;: &quot;A String&quot;, # Required. Immutable. The resource name of the entity under which this `Group` resides in the Cloud Identity resource hierarchy. Must be of the form `identitysources/{identity_source_id}` for external- identity-mapped groups or `customers/{customer_id}` for Google Groups. The `customer_id` must begin with &quot;C&quot; (for example, &#x27;C046psxkn&#x27;).
+      &quot;posixGroups&quot;: [ # Optional. The POSIX groups associated with the `Group`.
+        { # POSIX Group definition to represent a group in a POSIX compliant system.
+          &quot;gid&quot;: &quot;A String&quot;, # GID of the POSIX group.
+          &quot;name&quot;: &quot;A String&quot;, # Name of the POSIX group.
+          &quot;systemId&quot;: &quot;A String&quot;, # System identifier for which group name and gid apply to. If not specified it will default to empty value.
+        },
+      ],
       &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time when the `Group` was last updated.
     },
   ],