Stephen Finucane

@drodil You're probably long since gone, but if you wanted to get this passing I'd be happy to merge this. I fixed up style issues but there are unit tests...

Done via https://github.com/sphinx-contrib/openapi/pull/143

I have [requested access to the project on PyPI](https://github.com/pypa/pypi-support/issues/2463). If this is accepted, I will look to merge the open PRs and get the gate passing again. We can also...