Generated documentation for `AIOKafkaConsumer` on `readthedocs.io` doesn't have `getone` or `getmany`

[andersglindstrom]

The documentation for AIOKafkConsumer on readthedocs.io does not have documentation for the getone and getmany methods.

The source code for those methods has docstrings, so I'm expecting the generated docs to include that documentation.