public UAssetBundleSyncLoader(UAssetBundleManager _manager, UAssetBundlePool _packageManager, UAssetBundleManifestManager _manifestManager)
 {
     Manager         = _manager;
     PackageManager  = _packageManager;
     ManifestManager = _manifestManager;
 }
 public UAssetBundleAsyncLoader(UAssetBundleManager _manager, UAssetBundlePool _packageManager, UAssetBundleManifestManager _manifestManager)
     : base(_manager, _packageManager, _manifestManager)
 {
 }