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# region

The region used to determine when the system sends the notification.

```
@NSCopying var region: CLRegion { get }
```

## Discussion

Use the <doc://com.apple.documentation/documentation/CoreLocation/CLRegion/notifyOnEntry> and <doc://com.apple.documentation/documentation/CoreLocation/CLRegion/notifyOnExit> properties of this region to specify whether the system sends notifications when the user enters or exits the specified geographic area.

---

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