code: def test_hochberg_intervals(self):
      assert_almost_equal(self.res.halfwidths, self.halfwidth2, 4)
  
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 2 for calling the TestTuckeyHSD4 obj's underlying member method code with example usage: obj.test_hochberg_intervals() without return types