code: def test_invalid_name(self):
      with self.assertRaises(TypeError):
          Variable(self.root, name=123)
  
imports: import unittest
  from test import support
  import gc
  import tkinter
  from tkinter import Variable, StringVar, IntVar, DoubleVar, BooleanVar, Tcl, TclError
  from test.support import ALWAYS_EQ
  from test.test_tkinter.support import AbstractDefaultRootTest
label_desc: Use image node_id 7 for calling the TestVariable obj's underlying member method code with example usage: obj.test_invalid_name() without return types