text: """
  The :mod:`skmultiflow.trees` module includes learning methods based on trees.
  """
  from . import attribute_observer
  from . import attribute_test
  from . import nodes
  from . import split_criterion
  from .hoeffding_tree import HoeffdingTreeClassifier
  from .hoeffding_adaptive_tree import HoeffdingAdaptiveTreeClassifier
  from .extremely_fast_decision_tree import ExtremelyFastDecisionTreeClassifier
  from .label_combination_hoeffding_tree import LabelCombinationHoeffdingTreeClassifier
  from .hoeffding_tree_regressor import HoeffdingTreeRegressor
  from .hoeffding_adaptive_tree_regressor import HoeffdingAdaptiveTreeRegressor
  from .isoup_tree import iSOUPTreeRegressor
  from .stacked_single_target_hoeffding_tree_regressor import StackedSingleTargetHoeffdingTreeRegressor
  from .hoeffding_tree import HoeffdingTree   # remove in v0.7.0
  from .hoeffding_adaptive_tree import HAT   # remove in v0.7.0
  from .extremely_fast_decision_tree import HATT   # remove in v0.7.0"
  from .label_combination_hoeffding_tree import LCHT   # remove in v0.7.0"
  from .hoeffding_tree_regressor import RegressionHoeffdingTree   # remove in v0.7.0"
  from .hoeffding_adaptive_tree_regressor import RegressionHAT   # remove in v0.7.0"
  from .isoup_tree import MultiTargetRegressionHoeffdingTree   # remove in v0.7.0"
  
  __all__ = ["attribute_observer", "attribute_test", "nodes", "split_criterion",
             "HoeffdingTreeClassifier", "HoeffdingAdaptiveTreeClassifier", "ExtremelyFastDecisionTreeClassifier",
             "LabelCombinationHoeffdingTreeClassifier", "HoeffdingTreeRegressor", "HoeffdingAdaptiveTreeRegressor",
             "iSOUPTreeRegressor",
             "HoeffdingTree", "HAT", "HATT", "LCHT", "RegressionHoeffdingTree",
             "RegressionHAT", "MultiTargetRegressionHoeffdingTree",
             "StackedSingleTargetHoeffdingTreeRegressor"]
  
  