Ricy

I'm interested in the issue, can I be assigned @SamWilsn ? Also, please correct me if I got it wrong, the issue is due to the `.d.ts` file generated by...

> It's a bit hairy (or at least it was the last time I looked.) I've done something similar [over here](https://github.com/getwax/eip5139/blob/15c6afdc133c8d3a6be3e4d48b53f40185d815d4/src/wasm.rs#L13), but it's a very manual process. The wasm-bindgen reference...

> and the return value would be `SnippetDef[]` I think? This is the tricky part I met. I can't just code as `Result` or I would met `the trait IntoJsResult...

Hey @SamWilsn. For type definition testing, I didn't find a way to use wasm-pack. I only find how to test functionality with wasm-pack but not for types checking. So I...