BackingData An interface for providing in-memory storage for a persistent model. Declarationprotocol BackingData<Model> TopicsAssociated TypesModelInitializersinit(for:)Instance PropertiesmetadatapersistentModelIDInstance MethodsgetTransformableValue(forKey:)getValue(forKey:)getValue(forKey:)getValue(forKey:)getValue(forKey:)getValue(forKey:)setTransformableValue(forKey:to:)setValue(forKey:to:)setValue(forKey:to:)setValue(forKey:to:)setValue(forKey:to:)setValue(forKey:to:)