code: def test_graph_coloring(self):
      if "graph_coloring" in get_unity().list_toolkit_functions():
          m = tc.graph_coloring.create(self.graph)
          print(m)
          m.summary()
          # coloring is non-deterministic, so we cannot verify the result here
          self.__test_model_save_load_helper__(m)
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from .None import util
  import unittest
  import pandas
  from pandas.util.testing import assert_frame_equal
  import turicreate
  from turicreate._connect.main import get_unity
  from turicreate.toolkits._main import ToolkitError
  from turicreate.data_structures.sgraph import SGraph
  from turicreate.data_structures.sframe import SFrame
  import sys
label_desc: Use image node_id 8 for calling the GraphAnalyticsTest obj's underlying member method code with example usage: obj.test_graph_coloring() without return types