# forkAt

`import { forkAt } from "destack:debug";`

Fork debugger execution at one moment.

```ds title="forkAt"
export declare function forkAt(world: WorldHandle, moment: Moment): Result<BranchId, HostError>
```

[language/library/src/debug/debug.ds:409](https://github.com/destack-sh/destack/blob/main/language/library/src/debug/debug.ds#L409)