---
title: AnnotatedFeatureProvider.Transformer
framework: createmlcomponents
role: symbol
role_heading: Type Alias
path: createmlcomponents/annotatedfeatureprovider/transformer
---

# AnnotatedFeatureProvider.Transformer

The transformer type created by this estimator.

## Declaration

```swift
typealias Transformer = ColumnSelectorTransformer<Base.Transformer, UnwrappedInput>
```

## See Also

### Fitting

- [fitted(to:validateOn:eventHandler:)](createmlcomponents/annotatedfeatureprovider/fitted(to:validateon:eventhandler:).md)