# fatal

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

Write one fatal event.

```ds title="fatal"
export function fatal(name: &'a readonly string, fields?: Fields | undefined, cause?: unknown | undefined): void
```

[language/library/src/telemetry/log.ds:121:123](https://github.com/destack-sh/destack/blob/main/language/library/src/telemetry/log.ds#L121-L123)