code: def _main():
      parser = _get_parser()
      args = parser.parse_args()
      ret = _convert(args)
      _sys.exit(int(ret))
  
imports: import sys
  import google.protobuf.text_format
  from six import text_type
label_desc: Use image node_id 3 for calling a global function with example usage: _main() without return types