# AppEntity(schema:) A Swift macro you use to make sure your app entity conforms to a schema. ``` @attached(memberAttribute) @attached(extension, conformances: AppEntity, AssistantSchemaEntity, FileEntity, UniqueAppEntity, URLRepresentableEntity, names: named(__appSchemaEntity)) macro AppEntity(schema: T) where T : AppSchemaEntity ``` --- 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)