onPublishPrivilegeTokenWillExpire method
@detail callback
@author qipengxiang
@brief Token 发布权限过期前 30 秒将触发该回调。
收到该回调后，你需调用 updateToken:{@link #ByteRTCGameRoom#updateToken} 更新 Token 发布权限。
@param rtcRoom ByteRTCGameRoom 实例
@note Token 发布权限过期后：
- 已发布流或尝试发布流时，本端会收到 rtcRoom:onVideoPublishStateChanged:info:state:reason:{@link #ByteRTCGameRoomDelegate#rtcRoom:onVideoPublishStateChanged:info:state:reason}、rtcRoom:onAudioPublishStateChanged:info:state:reason:{@link #ByteRTCGameRoomDelegate#rtcRoom:onAudioPublishStateChanged:info:state:reason}、rtcRoom:onScreenVideoPublishStateChanged:userId:state:reason:{@link #ByteRTCGameRoomDelegate#rtcRoom:onScreenVideoPublishStateChanged:userId:state:reason}、rtcRoom:onScreenAudioPublishStateChanged:userId:state:reason:{@link #ByteRTCGameRoomDelegate#rtcRoom:onScreenAudioPublishStateChanged:userId:state:reason} 回调，提示kPublishStateChangeReasonNoPublishPermission，没有发布权限。
- 发布中的流将停止发布。远端用户会收到 rtcRoom:onUserPublishStreamVideo:info:isPublish:{@link #ByteRTCGameRoomDelegate#rtcRoom:onUserPublishStreamVideo:info:isPublish}、rtcRoom:onUserPublishStreamAudio:info:isPublish:{@link #ByteRTCGameRoomDelegate#rtcRoom:onUserPublishStreamAudio:info:isPublish}、rtcRoom:onUserPublishScreenVideo:uid:isPublish:{@link #ByteRTCGameRoomDelegate#rtcRoom:onUserPublishScreenVideo:uid:isPublish} 或 rtcRoom:onUserPublishScreenAudio:uid:isPublish:{@link #ByteRTCGameRoomDelegate#rtcRoom:onUserPublishScreenAudio:uid:isPublish} 回调，提示该流已停止发布。
@order 3
Implementation
FutureOr<void> onPublishPrivilegeTokenWillExpire(
ByteRTCGameRoom rtcRoom) async {}