code: def test_nonstandard_type():
      plt.figure()
      # Warning raised by matplotlib on Windows:
      # "The CObject type is marked Pending Deprecation in Python 2.7.
      #  Please use capsule objects instead."
      # Ref: https://docs.python.org/2/c-api/cobject.html
      with expected_warnings(
          imshow_expected_warnings
          + ["Low image data range|CObject type is marked"]
      ):
          ax_im = io.imshow(im64)
      assert ax_im.get_clim() == (im64.min(), im64.max())
      assert n_subplots(ax_im) == 2
      assert ax_im.colorbar is not None
  
file_path: scikit-image/skimage/io/tests/test_mpl_imshow.py
imports: import numpy
  import pytest
  from skimage import io
  from skimage._shared._warnings import expected_warnings
label_desc: Use image node_id 8 for calling a global function with example usage: test_nonstandard_type() without return types