code: def test_dilate_slice():
      np.random.seed(30)
      for i in range(16):
          f = (np.random.random_sample((256, 256)) * 255).astype(
              np.uint8
          )
          assert np.all(
              mahotas.dilate(f[:3, :3])
              == mahotas.dilate(f[:3, :3].copy())
          )
  
file_path: mahotas/mahotas/tests/test_dilate_erode.py
imports: import numpy
  import mahotas
  import mahotas
label_desc: Use image node_id 9 for calling a global function with example usage: test_dilate_slice() without return types