# subscript(_:as:) Returns the model for the specified identifier, downcast to the appropriate class. ``` subscript(id: PersistentIdentifier, as as: T.Type) -> T? where T : PersistentModel { get } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)