Add type annotations

[fhightower]

We should add type annotations on all public interfaces in this library.

[mlliarm]

Hey, @fhightower, I found recently your lib, because I wanted to create a fast script that can convert an XML/HTML response of a curl to a JSON format (curl <endpoint> | ./converter.py | prettyjson). Really useful lib, thanks !

I can help with the type annotations. I've used them in most of my python repos.

[fhightower]

Thanks for reaching out @mlliarm (and sorry about the slow response). Glad to hear it's useful!

That would be great if you can add type annotations (or even some type annotations would be helpful)! I'll assign this issue to you, but please reach out if you have any questions.

[mlliarm]

Hello,

Apologies for stalling, but there was too much work in my dayjob.

I've already added the annotations in my fork, but correcting the unit test suite took some time, and wanted to have a full green pass from all the tests before sending the PR.

As I'm on holidays for the next 3 weeks and have the required time and energy, I'll try finishing both this issue and #16 within February.

Cheers

[fhightower]

Totally understand - I've been pretty slammed myself. Any contributions are appreciated and no rush!