docstr: By itself, this tests that file parsed without exception.
docstr_tok: ["By","itself",",","this","tests","that","file","parsed","without","exception","."]
code: def setUpClass(cls):
      "By itself, this tests that file parsed without exception."
      cls.root = root = Tk()
      root.withdraw()
      cls.window = help.show_idlehelp(root)
  
file_path: cpython/Lib/idlelib/idle_test/test_help.py
imports: from idlelib import help
  import unittest
  from test.support import requires
  from os.path import abspath, dirname, join
  from tkinter import Tk
label_desc: Use image node_id 1 for calling the IdleDocTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types