code: def test_homogeneity(self):
      result = graycomatrix(
          self.image, [1], [0, 6], 4, normed=True, symmetric=True
      )
      homogeneity = graycoprops(result, "homogeneity")[0, 0]
      np.testing.assert_almost_equal(homogeneity, 0.80833333)
  
imports: import numpy
  import pytest
  from skimage._shared.testing import expected_warnings, run_in_parallel
  from skimage.feature import graycomatrix, graycoprops, local_binary_pattern, multiblock_lbp
  from skimage.transform import integral_image
label_desc: Use image node_id 18 for calling the TestGLCM obj's underlying member method code with example usage: obj.test_homogeneity() without return types