---
title: metadata
framework: exposurenotification
role: symbol
role_heading: Instance Property
path: exposurenotification/enexposureconfiguration/metadata
---

# metadata

The metadata you use to configure the exposure calculations.

## Declaration

```swift
var metadata: [AnyHashable : Any]? { get set }
```

## Discussion

Discussion important: This property is available in iOS 12.5, and in iOS 13.5 and later. Not used.

## See Also

### Level Configuration

- [attenuationDurationThresholds](exposurenotification/enexposureconfiguration/attenuationdurationthresholds.md)
- [attenuationLevelValues](exposurenotification/enexposureconfiguration/attenuationlevelvalues.md)
- [daysSinceLastExposureLevelValues](exposurenotification/enexposureconfiguration/dayssincelastexposurelevelvalues.md)
- [durationLevelValues](exposurenotification/enexposureconfiguration/durationlevelvalues.md)
- [transmissionRiskLevelValues](exposurenotification/enexposureconfiguration/transmissionrisklevelvalues.md)