code: def create_parser(prog):
    
    parser = argparse.ArgumentParser(prog=prog, formatter_class=DsubHelpFormatter)
  
    parser.add_argument(
        '--provider',
        default='google-v2',
        choices=['local', 'google', 'google-v2', 'test-fails'],
        help="""Job service provider. Valid values are "google-v2" (Google's
          Pipeline API v2) and "local" (local Docker execution). "test-*"
          providers are for testing purposes only.""",
        metavar='PROVIDER')
  
    return parser
docs: Create an argument parser, adding in the list of providers.