---
title: styleLossKey
framework: createml
role: symbol
role_heading: Type Property
path: createml/mlprogress/stylelosskey
---

# styleLossKey

The key that accesses the style image loss value.

## Declaration

```swift
static let styleLossKey: ProgressUserInfoKey
```

## See Also

### Accessing style transfer metrics

- [contentLossKey](createml/mlprogress/contentlosskey.md)
- [stylizedImageKey](createml/mlprogress/stylizedimagekey.md)