code: def _initiate_exp_object(self, KD_binary_classification_exp_object):
      self.exp = KD_binary_classification_exp_object  # explainer object
      self.data_df_copy = self.exp.data_interface.data_df.copy()
  
imports: import numpy
  import pytest
  from dice_ml.counterfactual_explanations import CounterfactualExplanations
  from dice_ml.diverse_counterfactuals import CounterfactualExamples
label_desc: Use image node_id 1 for calling the TestDiceKDBinaryClassificationMethods obj's underlying member method code with example usage: obj._initiate_exp_object(KD_binary_classification_exp_object) without return types