code: def main():
      
      parser = argparse.ArgumentParser()
      parser.add_argument("--host", type=str, required=True)
      parser.add_argument("--user", type=str, required=True)
      parser.add_argument("--password", type=str)
      parser.add_argument("--token", type=str)
      args = parser.parse_args()
      if not args.password and not args.token:
          print('password or token is required')
          exit(1)
      example(args.host, args.user, args.password, args.token)
docs: Main entry.