code: def criterion(self) -> str:
      return criterion_remapping(
          self._get_tree_model_parameter_value("impurity")
      )
  
imports: from abc import ABC
  from collections import defaultdict
  from typing import List, Mapping
  import numpy
  import pyspark
  from dtreeviz.models.shadow_decision_tree import ShadowDecTree
  from dtreeviz.utils import criterion_remapping
  from pyspark.ml.classification import DecisionTreeClassificationModel
  from pyspark.ml.regression import DecisionTreeRegressionModel
label_desc: Use image node_id 10 for calling the ShadowSparkTree obj's underlying member method code with example usage: obj.criterion() and returns: criterion_remapping