code: def test_cmyk_not_supported(self):
      for meta_info in test_image_info:
          input_img = PIL_Image.open(meta_info.url)
          input_img = input_img.convert("CMYK")
  
          import tempfile
  
          with tempfile.NamedTemporaryFile() as t:
              input_img.save(t, format="jpeg")
              with self.assertRaises(ToolkitError):
                  cmyk_image = image.Image(path=t.name, format="JPG")
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import array
  import unittest
  from PIL import Image
  import os
  from ..data_structures import image
  from ..None import SArray
  from ..toolkits.image_analysis import image_analysis
  from ..toolkits._main import ToolkitError
  from .._deps import numpy, HAS_NUMPY
label_desc: Use image node_id 5 for calling the ImageClassTest obj's underlying member method code with example usage: obj.test_cmyk_not_supported() without return types