code: def test_etclas_prediction_result_df(
      precalculated_et_classifier_explainer,
  ):
      assert isinstance(
          precalculated_et_classifier_explainer.prediction_result_df(0),
          pd.DataFrame,
      )
  
imports: import pandas
  import numpy
label_desc: Use image node_id 44 for calling a global function with example usage: test_etclas_prediction_result_df(precalculated_et_classifier_explainer) without return types