在slack集成的RASA聊天机器人中添加基于按钮的问题？

utter_greet:
  - text: "Hello! How can I assist you today?"
    buttons:
      - title: "FAQ"
        payload: "/faq"
      - title: "Contact Us"
        payload: "/contact_us"

class ActionHandleButtonResponse(Action):
    def name(self) -> Text:
        return "action_handle_button_response"

    def run(self, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:
        button_payload = tracker.latest_message['payload']
        
        # 根据按钮的payload执行相应的逻辑
        if button_payload == "/faq":
            dispatcher.utter_message(text="Here are some frequently asked questions: ...")
        elif button_payload == "/contact_us":
            dispatcher.utter_message(text="Please contact us at contact@example.com")
        
        return []

actions:
  - action_handle_button_response