code: def test_tk_busy(self):
      root = self.root
      f = tkinter.Frame(root, name="myframe")
      f2 = tkinter.Frame(root)
      f.pack()
      f2.pack()
      b = tkinter.Button(f)
      b.pack()
      f.tk_busy_hold()
      with self.assertRaisesRegex(TclError, 'unknown option "-spam"'):
          f.tk_busy_configure(spam="eggs")
      with self.assertRaisesRegex(TclError, 'unknown option "-spam"'):
          f.tk_busy_cget("spam")
      with self.assertRaisesRegex(TclError, 'unknown option "-spam"'):
          f.tk_busy_configure("spam")
      self.assertIsInstance(f.tk_busy_configure(), dict)
  
      self.assertTrue(f.tk_busy_status())
      self.assertFalse(root.tk_busy_status())
      self.assertFalse(f2.tk_busy_status())
      self.assertFalse(b.tk_busy_status())
      self.assertIn(f, f.tk_busy_current())
      self.assertIn(f, f.tk_busy_current("*.m?f*me"))
      self.assertNotIn(f, f.tk_busy_current("*spam"))
  
      f.tk_busy_forget()
      self.assertFalse(f.tk_busy_status())
      self.assertFalse(f.tk_busy_current())
      with self.assertRaisesRegex(TclError, "can't find busy window"):
          f.tk_busy_configure()
      with self.assertRaisesRegex(TclError, "can't find busy window"):
          f.tk_busy_forget()
  
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 4 for calling the MiscTest obj's underlying member method code with example usage: obj.test_tk_busy() without return types