# E0024

Warning name: `unused_error_type`

The error type of this function is never used.

## Erroneous example

```{literalinclude} /sources/error_codes/0024_error/top.mbt
:language: moonbit
```

## Suggestion

Remove the error type:

```{literalinclude} /sources/error_codes/0024_fixed/top.mbt
:language: moonbit
```