code: def _silence():
      
  
      old_stdout = sys.stdout
      old_stderr = sys.stderr
      sys.stdout = _DummyFile()
      sys.stderr = _DummyFile()
      exception_occurred = False
      try:
          yield
      except:
          exception_occurred = True
          # Go ahead and clean up so that exception handling can work normally
          sys.stdout = old_stdout
          sys.stderr = old_stderr
          raise
  
      if not exception_occurred:
          sys.stdout = old_stdout
          sys.stderr = old_stderr
docs: A context manager that silences sys.stdout and sys.stderr.