# Augmenter An augmenter. ``` struct Augmenter where RandomTransformer : RandomTransformer, RandomNumberGenerator : RandomNumberGenerator, RandomTransformer.Input == RandomTransformer.Output ``` ## Topics ### Creating an augmenter [`init(generator: RandomNumberGenerator, () -> RandomTransformer)`](/documentation/CreateMLComponents/Augmenter/init(generator:_:)) Creates an augmenter from a random number generator and an augmentation builder. ### Applying an augmentation [`func applied(to: S) -> AugmentationSequence`](/documentation/CreateMLComponents/Augmenter/applied(to:)) Applies an augmentation per input of the base sequence. [`func applied(to: C, upsampledBy: Int) -> UpsampledAugmentationSequence`](/documentation/CreateMLComponents/Augmenter/applied(to:upsampledBy:)) Applies an augmentation repeatedly to an array of inputs. --- 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)