code: def test_cells3d():
      """Needs internet connection."""
      path = fetch("data/cells3d.tif")
      image = io.imread(path)
      assert image.shape == (60, 2, 256, 256)
  
imports: import numpy
  import skimage.data
  from skimage.data._fetchers import _image_fetcher
  from skimage import io
  from skimage._shared.testing import assert_equal, assert_almost_equal, fetch
  import os
  import pytest
label_desc: Use image node_id 22 for calling a global function with example usage: test_cells3d() without return types