CatalogPlaylistSource

One music source whose playlists are in this answer, and how old its list is

Attributes (3)

Attribute	Type	Required	Description
pluginId	string	Yes
pluginName	string	Yes
listedAt	string	Yes	When the station last read this source's whole list of playlists. The library sync reads it in the background, so this is usually minutes old; a source listed for the first time is read for this answer