code: def test_getboolean(self):
      for v in "true", "yes", "on", "1", "t", "y", 1, True:
          self.assertIs(self.root.getboolean(v), True)
      for v in "false", "no", "off", "0", "f", "n", 0, False:
          self.assertIs(self.root.getboolean(v), False)
      self.assertRaises(ValueError, self.root.getboolean, "yea")
      self.assertRaises(ValueError, self.root.getboolean, "")
      self.assertRaises(TypeError, self.root.getboolean, None)
      self.assertRaises(TypeError, self.root.getboolean, ())
  
imports: import functools
  import unittest
  import tkinter
  from tkinter import TclError
  import enum
  from test import support
  from test.test_tkinter.support import AbstractTkTest, AbstractDefaultRootTest, requires_tk
label_desc: Use image node_id 17 for calling the MiscTest obj's underlying member method code with example usage: obj.test_getboolean() without return types