bool ClientGeoJsonSource::loadTileData(std::shared_ptr<TileTask>&& _task, TileTaskCb _cb) {

    _cb.func(std::move(_task));

    return true;
}
 virtual bool loadTileData(std::shared_ptr<TileTask>&& _task, TileTaskCb _cb) {
     tileTaskCount++;
     static_cast<Task*>(_task.get())->gotData = true;
     _cb.func(std::move(_task));
     return true;
 }