code: def test_posthoc_scheffe(self):
      r_results = np.array(
          [
              [1.0, 3.378449e-01, 3.047472e-10],
              [3.378449e-01, 1.0, 2.173209e-07],
              [3.047472e-10, 2.173209e-07, 1.0],
          ]
      )
  
      results = sp.posthoc_scheffe(
          self.df.sort_index(), val_col="pulse", group_col="kind"
      )
      self.assertTrue(np.allclose(results, r_results))
  
imports: import os
  import sys
  import unittest
  import matplotlib
  import scikit_posthocs._posthocs
  import scikit_posthocs._omnibus
  import scikit_posthocs._outliers
  import scikit_posthocs._plotting
  import scikit_posthocs._global
  import seaborn
  import numpy
  import matplotlib.axes
  from pandas import DataFrame, Series
label_desc: Use image node_id 45 for calling the TestPosthocs obj's underlying member method code with example usage: obj.test_posthoc_scheffe() without return types