---
title: "update(_:with:eventHandler:)"
framework: createmlcomponents
role: symbol
role_heading: Instance Method
path: "createmlcomponents/timeseriesclassifier/update(_:with:eventhandler:)"
---

# update(_:with:eventHandler:)

Updates a model with a new batch of examples.

## Declaration

```swift
func update(_ transformer: inout TimeSeriesClassifier<Scalar, Label>.Model, with input: some Sequence<AnnotatedFeature<MLShapedArray<Scalar>, Label>>, eventHandler: EventHandler? = nil) async throws
```

## Parameters

- `transformer`: A transformer to update.
- `input`: A sequence of annotated features for updating the transformer. Each feature’s shape should be [sequenceLength, featureSize].
- `eventHandler`: An event handler.