code: def setUpClass(cls):
      cls.root = Tk()
      cls.text = Text(cls.root)
  
imports: from idlelib.percolator import Percolator, Delegator
  import unittest
  from test.support import requires
  from tkinter import Text, Tk, END
label_desc: Use image node_id 1 for calling the PercolatorTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types