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Hi there, I am currently developing a 3rd-party client for Apple Music on iOS devices, but got stuck when trying to fetch artworks for catalog playlists.According to Apple Music API, "Get a Catalog Playlist", we may fetch a playlist by using its identifier as a path parameter, and the URL of the artwork is contained in the response :https://developer.apple.com/documentation/applemusicapi/get_a_catalog_playlistHowever, the playlist identifier is nowhere to be found, does anyone know how exactly can I access "the unique identifier for the playlist"? Any help would be appreciated!