# ObservationHandle

`import { ObservationHandle } from "destack:runtime";`

Runtime observation handle.

```ds title="ObservationHandle"
export newtype ObservationHandle = ResourceId
```

[language/library/src/runtime/observation.ds:9](https://github.com/destack-sh/destack/blob/main/language/library/src/runtime/observation.ds#L9)