code: def test_logo():
      """Test that "logo" image can be loaded."""
      logo = data.logo()
      assert_equal(logo.ndim, 3)
      assert_equal(logo.shape[2], 4)
  
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 12 for calling a global function with example usage: test_logo() without return types