Available on all platforms
new()
read onlycomplete:Bool
@:value(new Event<Void>())onComplete:_Event_Void_Void<() ‑> Void> = new Event<Void>()
@:value(new Event<Int -> Int>())onProgress:_Event_Int_Int_Void<(Int, Int) ‑> Void> = new Event<Int -> Int>()
addLibrary(library:AssetLibrary):Void
addLibraryName(name:String):Void
load():Void