# open

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

Open a debugger for one world.

```ds title="open"
export function open(world: WorldHandle): Debugger
```

[language/library/src/debug/debug.ds:264:266](https://github.com/destack-sh/destack/blob/main/language/library/src/debug/debug.ds#L264-L266)