code: def setUp(self):
      np.random.seed(42)
      y = pd.Series(np.random.binomial(1, 0.5, 20), index=range(20))
      df = pd.DataFrame(index=range(100))
  
      df["a"] = np.random.normal(0, 1, 100)
      df["b"] = np.random.normal(0, 1, 100)
      df["id"] = np.repeat(range(20), 5)
  
      X = pd.DataFrame(index=range(20))
      X["f1"] = np.random.normal(0, 1, 20)
      X["f2"] = np.random.normal(0, 1, 20)
  
      self.df = df
      self.X = X
      self.y = y
  
file_path: tsfresh/tests/integrations/test_relevant_feature_extraction.py
imports: from unittest import TestCase
  import numpy
  import pandas
  import pandas.testing
  from tests.fixtures import DataTestCase
  from tsfresh import extract_features, extract_relevant_features, select_features
  from tsfresh.feature_extraction.settings import ComprehensiveFCParameters
  from tsfresh.utilities.dataframe_functions import impute
label_desc: Use image node_id 1 for calling the RelevantFeatureExtractionTestCase obj's underlying member method code with example usage: obj.setUp() without return types