code: def test_shortcut_function(self):
      # check wrapper function
      res = pairwise_tukeyhsd(self.endog, self.groups, alpha=self.alpha)
      assert_almost_equal(res.confint, self.res.confint, decimal=14)
  
imports: from statsmodels.compat.python import asbytes
  from io import BytesIO
  import warnings
  import numpy
  import pandas
  import pytest
  from numpy.testing import assert_, assert_allclose, assert_almost_equal, assert_equal, assert_raises
  from statsmodels.stats.libqsturng import qsturng
  from statsmodels.stats.multicomp import tukeyhsd, pairwise_tukeyhsd, MultiComparison
label_desc: Use image node_id 4 for calling the CheckTuckeyHSDMixin obj's underlying member method code with example usage: obj.test_shortcut_function() without return types