code: def test_normed_symmetric(self):
      result = graycomatrix(
          self.image,
          [1, 2, 3],
          [0, np.pi / 2, np.pi],
          4,
          normed=True,
          symmetric=True,
      )
      for d in range(result.shape[2]):
          for a in range(result.shape[3]):
              np.testing.assert_almost_equal(
                  result[:, :, d, a].sum(), 1.0
              )
              np.testing.assert_array_equal(
                  result[:, :, d, a], result[:, :, d, a].transpose()
              )
  
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 12 for calling the TestGLCM obj's underlying member method code with example usage: obj.test_normed_symmetric() without return types