code: def tearDownClass(cls):
      del cls.text, cls.editwin
      cls.root.destroy()
      del cls.root
  
file_path: catboost/contrib/tools/python/src/Lib/idlelib/idle_test/test_parenmatch.py
imports: import unittest
  from test.test_support import requires
  from Tkinter import Tk, Text
  from idlelib.ParenMatch import ParenMatch
label_desc: Use image node_id 2 for calling the ParenMatchTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types