# label(_:) Assigns a label to an attachment. ``` func label(_ label: String) -> Attachment ``` ## Parameters `label` A string that identifies this attachment. ## Discussion Labels help the model identify specific attachments when making tool calls. ```swift Attachment(image) .label("profile-photo") ``` --- 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)