code: def test_grey_erosion_and_dilation(self, xp, scp):
      if self.mode == "mirror" and 1 in self.shape:
          pytest.skip("not testable against scipy")
      if self.x_dtype == self.output:
          pytest.skip("redundant")
      x = testing.shaped_random(self.shape, xp, self.x_dtype)
      return self._filter(xp, scp, x)
  
imports: import numpy
  import pytest
  from cupy import testing
  import cupyx.scipy.ndimage
label_desc: Use image node_id 2 for calling the TestGreyErosionAndDilation obj's underlying member method code with example usage: obj.test_grey_erosion_and_dilation(xp, scp) and returns: self