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

gcloud auth application-default login/google-cloud-sdk/lib/surface/projects/set_iam_policy.yaml

@@ -0,0 +1,27 @@
+- release_tracks: [ALPHA]
+
+  help_text:
+    brief: Set IAM policy for a project.
+    description: |
+      Sets the IAM policy for a project, given a project ID and a file encoded
+      in JSON or YAML that contains the IAM policy.
+
+    examples: |
+      The following command reads an IAM policy defined in a JSON file
+      `policy.json` and sets it for a project with the ID
+      `example-project-id-1`:
+
+      $ {command} example-project-id-1 policy.json
+
+      See https://cloud.google.com/iam/docs/managing-policies for details of the
+      policy file format and contents.
+  request:
+    collection: cloudresourcemanager.projects
+    use_relative_name: false
+    modify_request_hooks:
+    - googlecloudsdk.command_lib.projects.util:SetIamPolicyFromFileHook
+    - googlecloudsdk.command_lib.iam.hooks:UseMaxRequestedPolicyVersion:api_field=setIamPolicyRequest.policy.version
+  arguments:
+    resource:
+      help_text: The project to set the IAM policy for.
+      spec: !REF googlecloudsdk.command_lib.projects.resources:project