KubeSpawner `latest` docs is missing some traitlets help

[manics]

Bug description

Compare the traitlets help documentation in stable (6.0.0) https://jupyterhub-kubespawner.readthedocs.io/en/stable/spawner.html#kubespawner.KubeSpawner.extra_pod_config

with latest which has No help string is provided for some traitlets: https://jupyterhub-kubespawner.readthedocs.io/en/latest/spawner.html#kubespawner.KubeSpawner.extra_pod_config

How to reproduce

https://jupyterhub-kubespawner.readthedocs.io/en/latest/spawner.html#kubespawner.KubeSpawner.extra_pod_config

Expected behaviour

https://jupyterhub-kubespawner.readthedocs.io/en/stable/spawner.html#kubespawner.KubeSpawner.extra_pod_config / https://jupyterhub-kubespawner.readthedocs.io/en/6.0.0/spawner.html#kubespawner.KubeSpawner.extra_pod_config has help messages for the traitlets

Actual behaviour

No help string is provided for some traitlets

[consideRatio]

This isn't a KubeSpawner specific issue, it happens in dask/dask-gateway as well (https://github.com/dask/dask-gateway/issues/744)

[consideRatio]

There is a pattern to what help strings are missing - all config with the type Dict, List, Command. The underlying pattern for this could be that they relate to reference type and not value type variables perhaps.

• Dict
• List
• Command

[consideRatio]

Ah, and further, its an issue reproducing with traitlets 5.10.0, but not 5.9.0.

[consideRatio]

Resolved upstream in autodoc-traits, the latest page now renders correctly!