@ShogunPanda
Oh! I thought this is how it fixes the windows test. But it works now. So everything went well. Nice.

I would not call the interface Enum. Maybe TokenDict or something like this.

Done, what about now?

I dont know how strict you want your IntDict to actually be.

This is when you want them to be more strict. Typescript Playground

Thats why I wrote, that you would basically duplicate the code, once as an interface and once for the the Object.

But this is just fyi. If you like it more strict, than this is the way to go. Or maybe not. Your decision ;).

Since we use them internally (as llhttp it not published anymore on NPM) I don't it cares too much.
Eventually we can revisit in the future. Merging this.