I would love to see Leaflet.Control.Layers.Tree as a plugin in folium!
https://github.com/jjimenezshaw/Leaflet.Control.Layers.Tree

It would boost the ability to interact with mulit-layered data maps created by folium.

Nice example:
https://jjimenezshaw.github.io/Leaflet.Control.Layers.Tree/examples/airports.html