generated type guards can not be used when imported from index

[kurkle]

With the -g flag, type guards are generated nicely. But they are exported as type in the index, which makes then not usable through the index:

export type { isTypeAsset, TypeAsset, TypeAssetFields } from "./TypeAsset";

When trying to use:

'isTypeAsset' cannot be used as a value because it was exported using 'export type'.ts(1362)

[marcolink]

Thanks @kurkle 🙏

Would you mind reviewing this: #239

[kurkle]

Sorry I was not fast enough for the review, but I can confirm it works fine now 👏