code: def close(self):  # gui method
      pass
  
imports: from idlelib import grep
  import unittest
  from test.support import captured_stdout
  from idlelib.idle_test.mock_tk import Var
  import os
  import re
label_desc: Use image node_id 1 for calling the Dummy_grep obj's underlying member method code with example usage: obj.close() without return types