code: def setUp(self):
      super(OptionMenuTest, self).setUp()
      self.textvar = tkinter.StringVar(self.root)
  
imports: import sys
  import unittest
  import Tkinter
  import ttk
  from test.test_support import requires, run_unittest, swap_attr
  from test_ttk.support import AbstractTkTest, destroy_default_root
label_desc: Use image node_id 1 for calling the OptionMenuTest obj's underlying member method code with example usage: obj.setUp() without return types