code: def setUp(self):
      np.random.seed(42)
  
imports: import unittest
  import dask.dataframe
  import numpy
  import pandas
  from tsfresh import extract_features, extract_relevant_features
  from tsfresh.examples.driftbif_simulation import load_driftbif, sample_tau, velocity
  from tsfresh.feature_extraction import MinimalFCParameters
label_desc: Use image node_id 1 for calling the SampleTauTestCase obj's underlying member method code with example usage: obj.setUp() without return types