class_docstr: Compound worker initializer
  
  This is meant to be used in conjunction with _chain_initializers to
  produce  the necessary chained_args list to be passed to __call__.
code: def __call__(self, *chained_args):
      for initializer, args in zip(self._initializers, chained_args):
          initializer(*args)
  
file_path: catboost/contrib/python/joblib/joblib/externals/loky/initializers.py
imports: import warnings
label_desc: Use image node_id 2 for calling the _ChainedInitializer obj's underlying member method code with example usage: obj.__call__() without return types