# FrameId

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

Runtime frame identifier.

```ds title="FrameId"
export newtype FrameId = uint64
```

[language/library/src/runtime/frame.ds:7](https://github.com/destack-sh/destack/blob/main/language/library/src/runtime/frame.ds#L7)