We do it for the CLI, it should be possible to do it for an extension as well.

A few things to consider:

• We don't have all the source code for extensions in this repository as some extensions appear in the index but their source code is in a different repo.
• Can we build ref docs only from .whl and not the source code?
• Should we only provide online ref docs for extensions in the public index?
• We can still make the script available for generation. The generated docs may not appear in online documentation though.