Suggest me how to address friend handler. See more info -> [친구 추가/차단 알림](https://github.com/plusfriend/auto_reply#53-%EC%B9%9C%EA%B5%AC-%EC%B6%94%EA%B0%80%EC%B0%A8%EB%8B%A8-%EC%95%8C%EB%A6%BC-api)
Suggest me how to address friend handler.
See more info -> 친구 추가/차단 알림