code: def test_objectmapper(self):
      df = pdml.ModelFrame([])
      self.assertIs(
          df.ensemble.AdaBoostClassifier, ensemble.AdaBoostClassifier
      )
      self.assertIs(
          df.ensemble.AdaBoostRegressor, ensemble.AdaBoostRegressor
      )
      self.assertIs(
          df.ensemble.BaggingClassifier, ensemble.BaggingClassifier
      )
      self.assertIs(
          df.ensemble.BaggingRegressor, ensemble.BaggingRegressor
      )
      self.assertIs(
          df.ensemble.ExtraTreesClassifier,
          ensemble.ExtraTreesClassifier,
      )
      self.assertIs(
          df.ensemble.ExtraTreesRegressor, ensemble.ExtraTreesRegressor
      )
  
      self.assertIs(
          df.ensemble.GradientBoostingClassifier,
          ensemble.GradientBoostingClassifier,
      )
      self.assertIs(
          df.ensemble.GradientBoostingRegressor,
          ensemble.GradientBoostingRegressor,
      )
  
      self.assertIs(
          df.ensemble.IsolationForest, ensemble.IsolationForest
      )
  
      self.assertIs(
          df.ensemble.RandomForestClassifier,
          ensemble.RandomForestClassifier,
      )
      self.assertIs(
          df.ensemble.RandomTreesEmbedding,
          ensemble.RandomTreesEmbedding,
      )
      self.assertIs(
          df.ensemble.RandomForestRegressor,
          ensemble.RandomForestRegressor,
      )
  
      self.assertIs(
          df.ensemble.VotingClassifier, ensemble.VotingClassifier
      )
  
file_path: pandas-ml/pandas_ml/skaccessors/test/test_ensemble.py
imports: import pytest
  import sklearn.datasets
  import sklearn.ensemble
  import sklearn.metrics
  import pandas_ml
  import pandas_ml.util.testing
label_desc: Use image node_id 1 for calling the TestEnsemble obj's underlying member method code with example usage: obj.test_objectmapper() without return types