code: def test_KD_tree_counterfactual_explanations_output(
      self, desired_class, sample_custom_query_1, total_CFs
  ):
      counterfactual_explanations = self.exp.generate_counterfactuals(
          query_instances=sample_custom_query_1,
          desired_class=desired_class,
          total_CFs=total_CFs,
      )
  
      assert counterfactual_explanations is not None
  
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 4 for calling the TestDiceKDBinaryClassificationMethods obj's underlying member method code with example usage: obj.test_KD_tree_counterfactual_explanations_output(desired_class, sample_custom_query_1, total_CFs) without return types