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# EventSource

A type on which events can be published and subscribed.

```
protocol EventSource
```

## Relationships

### Conforming Types

[`Scene`](/documentation/RealityKit/Scene)

[`BodyTrackedEntity`](/documentation/RealityKit/BodyTrackedEntity)

[`TriggerVolume`](/documentation/RealityKit/TriggerVolume)

[`ViewAttachmentEntity`](/documentation/RealityKit/ViewAttachmentEntity)

[`AnchorEntity`](/documentation/RealityKit/AnchorEntity)

[`SpotLight`](/documentation/RealityKit/SpotLight)

[`Entity`](/documentation/RealityKit/Entity)

[`PointLight`](/documentation/RealityKit/PointLight)

[`PerspectiveCamera`](/documentation/RealityKit/PerspectiveCamera)

[`ModelEntity`](/documentation/RealityKit/ModelEntity)

[`DirectionalLight`](/documentation/RealityKit/DirectionalLight)

---

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