new()
audio:Map<String, AudioBuffer>
@:value(true)enabled:Bool = true
font:Map<String, Dynamic>
image:Map<String, Image>
version:Int
@:has_untyped@:value({ prefix : null })clear(?prefix:String):Void
exists(id:String, ?type:AssetType):Bool
set(id:String, type:AssetType, asset:Dynamic):Void