code: def fit(
      self,
      ctx: Context,
      *args,
      **kwargs,
  ) -> None:
      ...
  
file_path: FATE/python/fate/ml/abc/module.py
imports: from typing import Optional, Union
  from fate.arch import Context
  from fate.arch.dataframe import DataFrame
  import typing
label_desc: Use image node_id 2 for calling the Module obj's underlying member method code with example usage: obj.fit(ctx) without return types