docstr: ensure default block_params is robust to anisotropic shape.
docstr_tok: ["ensure","default","block_params","is","robust","to","anisotropic","shape","."]
code: def test_distance_transform_edt_2d_aniso(self, xp, scp, sx, sy):
      """ensure default block_params is robust to anisotropic shape."""
      shape = (128 + sy, 128 + sx)
      img = self._binary_image(shape, xp=xp, pct_true=80)
      return scp.ndimage.distance_transform_edt(img)
  
imports: import copy
  import numpy
  import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.ndimage
label_desc: Use image node_id 8 for calling the TestDistanceTransform obj's underlying member method code with example usage: obj.test_distance_transform_edt_2d_aniso(xp, scp, sx, sy) and returns: scp