code: def test_dialation8():
      # dialation8
      mop = ImageMorph.MorphOp(op_name="dilation8")
      count, Aout = mop.apply(A)
      assert count == 16
      assert_img_equal_img_string(
          Aout,
          """
                                       .......
                                       .11111.
                                       .11111.
                                       .11111.
                                       .11111.
                                       .11111.
                                       .......
                                       """,
      )
  
imports: from __future__ import annotations
  import pytest
  from PIL import Image, ImageMorph, _imagingmorph
  from .helper import assert_image_equal_tofile, hopper
label_desc: Use image node_id 9 for calling a global function with example usage: test_dialation8() without return types