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# withoutUI

Specifies that no UI should accompany the unmount operation.

```
static var withoutUI: FileManager.UnmountOptions { get }
```

## Discussion

If this option is not specified when calling [`unmountVolume(at:options:completionHandler:)`](/documentation/Foundation/FileManager/unmountVolume(at:options:completionHandler:)), any needed UI will delay completion of the completion handler.

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