UUsdAssetCache3::DeleteUnreferencedAssetsWithConfirmation

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Description

This is the same as calling DeleteUnreferencedAssets and providing true for bShowConfirmation. It is just exposed in this manner so we automatically get a button for calling this function on details panels of the asset cache.

WARNING: This will clear the undo buffer (i.e. transaction history) and run garbage collection after deleting.

UFUNCTION (BlueprintCallable, Category="Cleanup",  
          Meta=(CallInEditor="true", DisplayName="Delete Unreferenced Assets"))  
void DeleteUnreferencedAssetsWithConfirmation()  
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UFUNCTION (BlueprintCallable, Category="Cleanup",           Meta=(CallInEditor="true", DisplayName="Delete Unreferenced Assets")) void DeleteUnreferencedAssetsWithConfirmation()