code: def test_majority(self):
      img = data.camera()
      elem = np.ones((3, 3), dtype=np.uint8)
      expected = (
          rank.windowed_histogram(img, elem).argmax(-1).astype(np.uint8)
      )
      assert_equal(expected, rank.majority(img, elem))
  
imports: import numpy
  import pytest
  from skimage import data, morphology, util
  from skimage._shared._warnings import expected_warnings
  from skimage._shared.testing import assert_allclose, assert_array_almost_equal, assert_equal, fetch, run_in_parallel
  from skimage.filters import rank
  from skimage.filters.rank import __all__
  from skimage.filters.rank import subtract_mean
  from skimage.morphology import ball, disk, gray
  from skimage.util import img_as_float, img_as_ubyte
label_desc: Use image node_id 36 for calling the TestRank obj's underlying member method code with example usage: obj.test_majority() without return types