# SlabKey

`import { SlabKey } from "destack:collections";`

Key for one live slab entry.

```ds title="SlabKey"
export newtype SlabKey = { index: uint32; generation: uint32 }
```

[language/library/src/collections/slab.ds:10:16](https://github.com/destack-sh/destack/blob/main/language/library/src/collections/slab.ds#L10-L16)