feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/lib/surface/run/services/get_iam_policy.yaml

@@ -0,0 +1,43 @@
+- release_tracks: [ALPHA, BETA, GA]
+
+  help_text:
+    brief: Get the IAM policy for a Cloud Run service.
+    description: |
+      This command gets the IAM policy for a service. If
+      formatted as JSON, the output can be edited and used as a policy
+      file for *set-iam-policy*. The output includes an "etag" field
+      identifying the version emitted and allowing detection of
+      concurrent policy updates; see
+      $ gcloud alpha run registries set-iam-policy for additional details.
+    examples: |
+      To print the IAM policy for a given service, run:
+
+        $ {command} --region=us-central1 my-service
+
+  request:
+    collection: run.projects.locations.services
+    modify_request_hooks:
+    - googlecloudsdk.command_lib.run.platforms:ValidatePlatformIsManaged
+
+  arguments:
+    resource:
+      help_text: The service for which to display the IAM policy.
+      spec: !REF googlecloudsdk.command_lib.run.resources:service
+      # The --region flag is specified at the group level, so don't try to add it here
+      removed_flags: ['region']
+      command_level_fallthroughs:
+        region:
+        - arg_name: 'region'
+
+  ALPHA:
+    iam:
+      policy_version: 3
+      get_iam_policy_version_path: options_requestedPolicyVersion
+  BETA:
+    iam:
+      policy_version: 3
+      get_iam_policy_version_path: options_requestedPolicyVersion
+  GA:
+    iam:
+      policy_version: 3
+      get_iam_policy_version_path: options_requestedPolicyVersion