code: def undecorate(func):
      
      orig_call_wrapper = lambda x: x
      for call_wrapper, unwrap in SUPPORTED_DECORATOR.items():
          if isinstance(func, call_wrapper):
              func = unwrap(func)
              orig_call_wrapper = call_wrapper
              break
      return orig_call_wrapper, func
docs: Returns the decorator and the undecorated function of given object.