code: def test_zero_cfs(
      self,
      features_to_vary,
      desired_class,
      desired_range,
      sample_custom_query_2,
      total_CFs,
      permitted_range,
  ):
      self.exp._generate_counterfactuals(
          features_to_vary=features_to_vary,
          query_instance=sample_custom_query_2,
          total_CFs=total_CFs,
          desired_class=desired_class,
          desired_range=desired_range,
          permitted_range=permitted_range,
      )
  
imports: import pytest
  from raiutils.exceptions import UserConfigValidationException
  from dice_ml.counterfactual_explanations import CounterfactualExplanations
  from dice_ml.diverse_counterfactuals import CounterfactualExamples
label_desc: Use image node_id 5 for calling the TestDiceRandomRegressionMethods obj's underlying member method code with example usage: obj.test_zero_cfs(features_to_vary, desired_class, desired_range, sample_custom_query_2, total_CFs, permitted_range) without return types