code: def set_handlers(self,priority=10):
          
          self.stream.set_message_handler("groupchat",self.__groupchat_message,None,priority)
          self.stream.set_message_handler("error",self.__error_message,None,priority)
          self.stream.set_presence_handler("available",self.__presence_available,None,priority)
          self.stream.set_presence_handler("unavailable",self.__presence_unavailable,None,priority)
          self.stream.set_presence_handler("error",self.__presence_error,None,priority)
docs: Assign MUC stanza handlers to the `self.stream`.
  
          :Parameters:
              - `priority`: priority for the handlers.
          :Types:
              - `priority`: `int`