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# Session

A session type that the handler serves.

```
associatedtype Session : AccessoryFeatureRuntimeSession
```

## Discussion

This associated type conforms to [`AccessoryFeatureRuntimeSession`](/documentation/AccessoryTransportExtension/AccessoryFeatureRuntimeSession), and each feature pins it through that feature’s own `Handler` type alias, such as [`AccessoryWorker.FeatureSession.Handler`](/documentation/AccessoryTransportExtension/AccessoryWorker/FeatureSession/Handler).

---

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