Can it fail if no types are found?

As a library author I very much like `attw` as it allows me to check if my "main" entry point is correct. However, I noticed that the `attw` CLI doesn't fail if no types are found at all. It simply states:

```bash
{
  "packageName": "trading212-api",
  "packageVersion": "1.0.2",
  "types": false
}
```

Is there the possibility to make `attw` fail also when there are no types at all?