# adaptedAsAnnotatedFeatureTransformer(annotationType:) Returns an annotated-feature transformer that transforms the features using this transformer while leaving the annotations unchanged. ``` func adaptedAsAnnotatedFeatureTransformer(annotationType: Annotation.Type = Annotation.self) -> some Transformer, AnnotatedFeature> ``` --- 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)