code: def signalcommand(func):
      
  
      def inner(self, *args, **kwargs):
          pre_command.send(self.__class__, args=args, kwargs=kwargs)
          ret = func(self, *args, **kwargs)
          post_command.send(self.__class__, args=args, kwargs=kwargs, outcome=ret)
          return ret
      return inner
docs: Python decorator for management command handle defs that sends out a pre/post signal.