Now we're ignoring the sphinx warnings and some of these warnings is about "broken" references so we need to configure our ReadTheDocs build to fail on warnings.
The default value is false, reference!!

Another point here is that we got a lot of warnings like this:

WARNING: Cannot resolve forward reference in type annotations of "returns.interfaces.specific.result.ResultLikeN.bind_result": name 'Result' is not defined

It's because our configuration is set to disable the TYPE_CHECKING flag as we can see here

refs #547