class_docstr: Base class for ``ModelFrame`` and ``ModelFrame``
class_docstr_tok: ["Base","class","for","``","ModelFrame","``","and","``","ModelFrame","``"]
code: def _call(self, estimator, method_name, *args, **kwargs):
      # must be overrided
      raise NotImplementedError
  
imports: import warnings
  import pandas.compat
  import pandas_ml.misc
  from pandas_ml.compat import Appender
label_desc: Use image node_id 2 for calling the ModelTransformer obj's underlying member method code with example usage: obj._call(estimator, method_name) without return types