# encodeWithOptimizer(_:to:) Encodes a fitted transformer with an optimizer. ``` func encodeWithOptimizer(_ transformer: FullyConnectedNetworkRegressor.Transformer, to encoder: inout any EstimatorEncoder) throws ``` ## Parameters `transformer` A fully connected network regressor model. `encoder` An encoder for the estimator. --- 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)