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# forMerging

```
static var forMerging: NSFileCoordinator.WritingOptions { get }
```

## Discussion

When this constant is specified, the file coordinator calls the [`savePresentedItemChanges(completionHandler:)`](/documentation/Foundation/NSFilePresenter/savePresentedItemChanges(completionHandler:)) method of relevant file presenters to give them a chance to save their changes before your code makes its changes.

---

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