updateSession method
- {required NIMSession session,
- bool needNotify = false}
更新会话对象
needNotify 是否需要发送通知
仅支持修改 tag 以及 extension
Implementation
Future<NIMResult<void>> updateSession({
  required NIMSession session,
  bool needNotify = false,
}) {
  return _platform.updateSession(session: session, needNotify: needNotify);
}