code: def test_no_option():
      img = data.binary_blobs(
          length=128, blob_size_fraction=0.15, n_dim=3
      )
      l_ndi = _label_bool(img)
      l_cy = clabel(img)
      testing.assert_equal(l_ndi, l_cy)
  
file_path: scikit-image/skimage/measure/tests/test_label.py
imports: import pytest
  import numpy
  from skimage import data
  from skimage.measure._label import _label_bool, label
  from skimage.measure._ccomp import label_cython
  from skimage._shared import testing
label_desc: Use image node_id 1 for calling a global function with example usage: test_no_option() without return types