# receive(completion:) Add a completion to the recording. ``` mutating func receive(completion: Subscribers.Completion) ``` ## Discussion A `fatalError` will be raised if more than one completion is added. --- 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)