Support for getting "Roots" from client

[tecimovic]

I need to read "Roots" from the client, as the 6-18-2025 spec defines.
I can't seem to find the support for that anywhere.... I see that you have ListRoots messages, but I can't find any nice API for it.

Question: is there already support for that?
If yes: how do I use it?

If not, I'll work on it myself and just contribute the result back, but I don't want to work on it if I simply didn't find it.

For reference:
https://modelcontextprotocol.io/specification/2025-06-18/client/roots#listing-roots