code: def h(cls):
      pass
  
file_path: catboost/contrib/python/joblib/joblib/externals/loky/backend/reduction.py
imports: import copyreg
  import io
  import functools
  import types
  import sys
  import os
  from multiprocessing import util
  from pickle import loads, HIGHEST_PROTOCOL
label_desc: Use image node_id 2 for calling the _C obj's underlying member method code with example usage: obj.h(cls) without return types