code: def __getattr__(self, item):
      if item == "_model":
          raise AttributeError
      return getattr(self._model, item)
  
file_path: mars/mars/learn/contrib/statsmodels/api.py
imports: import pickle
  from .train import StatsModelsTrain
  from .predict import StatsModelsPredict
label_desc: Use image node_id 3 for calling the MarsResults obj's underlying member method code with example usage: obj.__getattr__(item) and returns: getattr