code: def create_test_data_sample(self):
      cid = np.repeat([10, 500], 40)
      ckind = np.repeat(["a", "b", "a", "b"], 20)
      csort = [
          30,
          53,
          26,
          35,
          42,
          25,
          17,
          67,
          20,
          68,
          46,
          12,
          0,
          74,
          66,
          31,
          32,
          2,
          55,
          59,
          56,
          60,
          34,
          69,
          47,
          15,
          49,
          8,
          50,
          73,
          23,
          62,
          24,
          33,
          22,
          70,
          3,
          38,
          28,
          75,
          39,
          36,
          64,
          13,
          72,
          52,
          40,
          16,
          58,
          29,
          63,
          79,
          61,
          78,
          1,
          10,
          4,
          6,
          65,
          44,
          54,
          48,
          11,
          14,
          19,
          43,
          76,
          7,
          51,
          9,
          27,
          21,
          5,
          71,
          57,
          77,
          41,
          18,
          45,
          37,
      ]
      cval = [
          11,
          9,
          67,
          45,
          30,
          58,
          62,
          19,
          56,
          29,
          0,
          27,
          36,
          43,
          33,
          2,
          24,
          71,
          41,
          28,
          50,
          40,
          39,
          7,
          53,
          23,
          16,
          37,
          66,
          38,
          6,
          47,
          3,
          61,
          44,
          42,
          78,
          31,
          21,
          55,
          15,
          35,
          25,
          32,
          69,
          65,
          70,
          64,
          51,
          46,
          5,
          77,
          26,
          73,
          76,
          75,
          72,
          74,
          10,
          57,
          4,
          14,
          68,
          22,
          18,
          52,
          54,
          60,
          79,
          12,
          49,
          63,
          8,
          59,
          1,
          13,
          20,
          17,
          48,
          34,
      ]
      df = pd.DataFrame(
          {"id": cid, "kind": ckind, "sort": csort, "val": cval}
      )
      df = df.set_index("id", drop=False)
      df.index.name = None
      return df
  
file_path: tsfresh/tests/fixtures.py
imports: import warnings
  from contextlib import contextmanager
  from unittest import TestCase
  import numpy
  import pandas
label_desc: Use image node_id 1 for calling the DataTestCase obj's underlying member method code with example usage: obj.create_test_data_sample() and returns: df