Getting service track is being played from?

[FoxxMD]

Hello and thank you for this wonderful library. It has made implementing Sonos for my project, Multi-scrobbler painless.

I would like to allow users to monitor the currently playing audio based on what service/source the audio originates from. In the Sonos app this is visible in the player UI, under the title.

I have used TrackMetaData and see that the metadata service makes some of this visible via TrackUri, but it's not there for every service. As an example, a song for Plex or episode from Pocketcasts shows the respective source name in the player ui, but the TrackURI and ProtocolInfo show generic http like

"TrackUri": "x-sonos-http:6d7ca5970d14ab3480538fd7890d00a151cc81f4:10:82944:track.mp3?sid=212&flags=24616&sn=4",
 "ProtocolInfo": "sonos.com-http:*:audio/mpeg:*"

All of the other Device methods I've checked, including Queue, do not seem to show this service information. Is this something I can extract, somehow, using your library? Or is it locked behind Sonos internal data and not surfaced by the upnp api?

Thanks for your time.