docs: def main():
      """Entrypoint for the console script gcp-devrel-py-tools."""
      parser = argparse.ArgumentParser()
      subparsers = parser.add_subparsers()
  
      appengine.register_commands(subparsers)
      requirements.register_commands(subparsers)
      pylint.register_commands(subparsers)
  
      args = parser.parse_args()
      args.func(args)