code: def warning(self, message, **kwargs):
      dst = kwargs.get("dst", None)
      return self._log(message, logging.WARNING, dst)
  
imports: import typing
  import warnings
  from typing import overload
  import torch
  from fate.arch.protocol import mpc
  import logging
label_desc: Use image node_id 19 for calling the MPC obj's underlying member method code with example usage: obj.warning(message) and returns: self