code: def tearDown(self):
      try:
          del timeit._fake_timer
      except AttributeError:
          pass
  
imports: import timeit
  import unittest
  import sys
  import io
  from textwrap import dedent
  from test.support import captured_stdout
  from test.support import captured_stderr
label_desc: Use image node_id 1 for calling the TestTimeit obj's underlying member method code with example usage: obj.tearDown() without return types