BAHasManagedAssetPacks
A Boolean value that indicates whether you let the system automatically manage your asset packs.
Discussion
Set this key to YES if you want the system to automatically download your asset packs and keep them up to date in the background.
Then, in your app’s code, manage asset-pack downloads using the AssetPackManager actor. In your extension code, use the StoreKit StoreDownloaderExtension protocol if you set the BAUsesAppleHosting key to YES; otherwise, use the Background Assets ManagedDownloaderExtension protocol.