code: def set(self, value):
      self.side_effect = True
      super().set(value)
  
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 1 for calling the Var obj's underlying member method code with example usage: obj.set(value) without return types