code: def setUp(self):
      TV.transient.__init__()
      TV.grab_set.__init__()
      TV.wait_window.__init__()
  
imports: import unittest
  import os
  from test.test_support import requires
  from Tkinter import Tk
  from idlelib import textView
  from idlelib.idle_test.mock_idle import Func
  from idlelib.idle_test.mock_tk import Mbox
label_desc: Use image node_id 3 for calling the textviewClassTest obj's underlying member method code with example usage: obj.setUp() without return types