code: def setUpClass(cls):
      requires("gui")
      root = cls.root = Tk()
      root.withdraw()
      cls.text = Text(root)
  
imports: from idlelib import colorizer
  from test.support import requires
  import unittest
  from unittest import mock
  from idlelib.idle_test.tkinter_testing_utils import run_in_tk_mainloop
  from functools import partial
  import textwrap
  from tkinter import Tk, Text
  from idlelib import config
  from idlelib.percolator import Percolator
label_desc: Use image node_id 1 for calling the ColorDelegatorInstantiationTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types