code: def _initiate_exp_object(self, binary_classification_exp_object):
      self.exp = binary_classification_exp_object  # explainer object
      self.data_df_copy = self.exp.data_interface.data_df.copy()
  
file_path: DiCE/tests/test_counterfactual_explanations.py
imports: import json
  import pytest
  from raiutils.exceptions import UserConfigValidationException
  from dice_ml.counterfactual_explanations import CounterfactualExplanations
label_desc: Use image node_id 1 for calling the TestSerializationCounterfactualExplanations obj's underlying member method code with example usage: obj._initiate_exp_object(binary_classification_exp_object) without return types