code: def test_exact():
      tb = np.array([[101, 121], [59, 33]])
  
      p = 4.4344492637555101e-06
      chi2p, pp = mcnemar(tb, exact=True)
  
      assert chi2p is None
      assert_almost_equal(p, pp, decimal=7)
      assert p < 4.45e-06
  
file_path: mlxtend/mlxtend/evaluate/tests/test_mcnemar_test.py
imports: import numpy
  from numpy.testing import assert_almost_equal
  from mlxtend.evaluate import mcnemar
  from mlxtend.utils import assert_raises
label_desc: Use image node_id 4 for calling a global function with example usage: test_exact() without return types