Please add clear docs for Forms V1 API

So, I have spent 4 hours last night testing out the Google Forms REST API just to see it fail authorizations and stuffs like that. Then I found out that there is NPM library for Google OAuth2 Client and Google Forms.

There is no clear docs on Google Forms API on that NPM page and the API documentation link on the README for the NPM page leads to a 404 page. Clearly a documentation wasn't made yet for googleapis.dev

I hope that you guys can rush out a documentation as this is urgent and important for users who are looking for a guide on how to use the form API.