模拟MTProto中的searchChatsNearby方法
Analog searchChatsNearby method in MTProto
TDLib中有一个searchChatsNearby方法（https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1search_chats_nearby.html), because TDLib uses the MTProto protocol, there should be an analog in the protocol, but I can't find it in the scheme (https://core.telegram.org/schema/mtproto），如何理解searchChatsNearby方法实现的MTProto方案的哪些特点？
它是 contacts.getLocated，returns 用户和组
TDLib中有一个searchChatsNearby方法（https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1search_chats_nearby.html), because TDLib uses the MTProto protocol, there should be an analog in the protocol, but I can't find it in the scheme (https://core.telegram.org/schema/mtproto），如何理解searchChatsNearby方法实现的MTProto方案的哪些特点？
它是 contacts.getLocated，returns 用户和组