---
title: trainingBegin
framework: coreml
role: symbol
role_heading: Type Property
path: coreml/mlupdateprogressevent/trainingbegin
---

# trainingBegin

An event that represents the start of training.

## Declaration

```swift
static var trainingBegin: MLUpdateProgressEvent { get }
```

## See Also

### Getting progress event types

- [miniBatchEnd](coreml/mlupdateprogressevent/minibatchend.md)
- [epochEnd](coreml/mlupdateprogressevent/epochend.md)