---
title: uuid
framework: vision
role: symbol
role_heading: Instance Property
path: vision/documentobservation/uuid
---

# uuid

A unique alphanumeric value that the framework assigns to the observation.

## Declaration

```swift
let uuid: UUID
```

## See Also

### Inspecting an observation

- [confidence](vision/documentobservation/confidence.md)
- [document](vision/documentobservation/document.md)
- [timeRange](vision/documentobservation/timerange.md)