old_contents: # Copyright 2021 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  
  # [START cloudbuild_quickstart]
  import google.auth
  from google.cloud.devtools import cloudbuild_v1
  
  
  def quickstart():
      """Create and execute a simple Google Cloud Build configuration,
      print the in-progress status and print the completed status."""
  
      # Authorize the client with Google defaults
      credentials, project_id = google.auth.default()
      client = cloudbuild_v1.services.cloud_build.CloudBuildClient()
  
      build = cloudbuild_v1.Build()
  
      # The following build steps will output "hello world"
      # For more information on build configuration, see
      # https://cloud.google.com/build/docs/configuring-builds/create-basic-configuration
      build.steps = [{"name": "ubuntu",
                      "entrypoint": "bash",
                      "args": ["-c", "echo hello world"]}]
  
      operation = client.create_build(project_id=project_id, build=build)
      # Print the in-progress operation
      print("IN PROGRESS:")
      print(operation.metadata)
  
      result = operation.result()
      # Print the completed status
      print("RESULT:", result.status)
  # [END cloudbuild_quickstart]
  
  
  if __name__ == "__main__":
      quickstart()
  
new_contents: # Copyright 2021 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  
  # [START cloudbuild_quickstart]
  import google.auth
  from google.cloud.devtools import cloudbuild_v1
  
  
  def quickstart():
      """Create and execute a simple Google Cloud Build configuration,
      print the in-progress status and print the completed status."""
  
      # Authorize the client with Google defaults
      # If you're using Private Pools, add a regional `api_endpoint` to `CloudBuildClient()`
      # For example, '<YOUR_POOL_REGION>-cloudbuild.googleapis.com'
      credentials, project_id = google.auth.default()
      client = cloudbuild_v1.services.cloud_build.CloudBuildClient()
  
      build = cloudbuild_v1.Build()
  
      # The following build steps will output "hello world"
      # For more information on build configuration, see
      # https://cloud.google.com/build/docs/configuring-builds/create-basic-configuration
      build.steps = [{"name": "ubuntu",
                      "entrypoint": "bash",
                      "args": ["-c", "echo hello world"]}]
  
      operation = client.create_build(project_id=project_id, build=build)
      # Print the in-progress operation
      print("IN PROGRESS:")
      print(operation.metadata)
  
      result = operation.result()
      # Print the completed status
      print("RESULT:", result.status)
  # [END cloudbuild_quickstart]
  
  
  if __name__ == "__main__":
      quickstart()
  
subject: clarify private pools instructions (#268)