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# photosReferenceImageViewer(asset:onProcessingCompletion:)

Presents an image viewer for an asset in a photo library that contains Apple Reference Image data when `isPresented` is set to true.

```
@MainActor @preconcurrency func photosReferenceImageViewer(asset: Binding<PHAsset?>, onProcessingCompletion: ((Result<PHAsset, any Error>) -> Void)?) -> some View
```

## Discussion

- Parameters
  - isPresented: A binding that determines when this view is presented.
  - asset: A `PHAsset` that is an image that contains Apple Reference Image data.
  - onProcessingCompletion: An optional closure called when processing completes.

---

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