addFriendsToFriendGroup method
添加好友到一个好友分组
Implementation
Future<V2TimValueCallback<List<V2TimFriendOperationResult>>>
addFriendsToFriendGroup({
required String groupName,
required List<String> userIDList,
}) async {
throw UnimplementedError(
"addFriendsToFriendGroup() has not been implemented");
}