# counter

`import { counter } from "destack:telemetry";`

Create one counter from the default meter.

```ds title="counter"
export function counter(name: string, unit?: string | undefined): Counter
```

[language/library/src/telemetry/metric.ds:183:185](https://github.com/destack-sh/destack/blob/main/language/library/src/telemetry/metric.ds#L183-L185)