Json Delegate Property
expect class JsonDelegateProperty<out T>(key: String?, initializer: PropertyInitializer<T>) : ReadOnlyProperty<Any?, T>
actual class JsonDelegateProperty<out T>(key: String?, initializer: PropertyInitializer<T>) : ReadOnlyProperty<Any?, T>
actual class JsonDelegateProperty<out T>(key: String?, initializer: PropertyInitializer<T>) : ReadOnlyProperty<Any?, T>