# registerCase

`import { registerCase } from "destack:bench";`

Register one benchmark case.

```ds title="registerCase"
export function registerCase(name: string, argument?: Argument | undefined, body?: Body | undefined): void
```

[language/library/src/bench/case.ds:32:34](https://github.com/destack-sh/destack/blob/main/language/library/src/bench/case.ds#L32-L34)