def _prompt_for_google_cloud(
    google_cloud_project: Optional[str],
) -> str:
  """Prompts user for Google Cloud project ID."""
  google_cloud_project = (
      google_cloud_project
      or os.environ.get("GOOGLE_CLOUD_PROJECT", None)
      or _get_gcp_project_from_gcloud()
  )

  google_cloud_project = _prompt_str(
      "Enter Google Cloud project ID", default_value=google_cloud_project
  )

  return google_cloud_project
Prompts user for Google Cloud project ID.
src/google/adk/cli/cli_create.py