# withTaskCancellationHandler(handler:operation:) ``` func withTaskCancellationHandler(handler: @Sendable () -> Void, operation: () async throws -> T) async rethrows -> T ``` --- 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)