code: def fit(self, ctx: Context, input_data):
      ...
  
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 1 for calling the Module obj's underlying member method code with example usage: obj.fit(ctx, input_data) without return types