code: def add_argparser(self, root, parents):
          
          parents.append(tools.argparser)
  
          parser = root.add_parser('auth', parents=parents)
          parser.set_defaults(func=self)
  
          parser.add_argument(
              '--secrets',
              dest='secrets', action='store',
              help='Path to the authorization secrets file (client_secrets.json).'
          )
  
          return parser
docs: Add arguments for this command.