code: def test_footprint_overflow():
      img = np.zeros((20, 20), dtype=bool)
      img[2:19, 2:19] = True
      isotropic_res = isotropic.isotropic_erosion(img, 9)
      binary_res = img_as_bool(
          binary.binary_erosion(img, morphology.disk(9))
      )
      assert_array_equal(isotropic_res, binary_res)
  
file_path: scikit-image/skimage/morphology/tests/test_isotropic.py
imports: import numpy
  from numpy.testing import assert_array_equal
  from skimage import color, data, morphology
  from skimage.morphology import binary, isotropic
  from skimage.util import img_as_bool
label_desc: Use image node_id 8 for calling a global function with example usage: test_footprint_overflow() without return types