sendTextAtMessage method
Implementation
Future<V2TimValueCallback<V2TimMessage>> sendTextAtMessage({
required String text,
required List<String> atUserList,
required String receiver,
required String groupID,
int priority = 0,
bool onlineUserOnly = false,
bool isExcludedFromUnreadCount = false,
Map<String, dynamic>? offlinePushInfo,
}) async {
throw UnimplementedError("sendTextAtMessage () has not been implemented");
}