Document known token scopes
// Ported from librespot-java. Relicensed under MIT with permission.
+// Known tokens:
+// ugc-image-upload, playlist-read-collaborative, playlist-modify-private,
+// playlist-modify-public, playlist-read-private, user-read-playback-position,
+// user-read-recently-played, user-top-read, user-modify-playback-state,
+// user-read-currently-playing, user-read-playback-state, user-read-private, user-read-email,
+// user-library-modify, user-library-read, user-follow-modify, user-follow-read, streaming,
+// app-remote-control
+
use crate::mercury::MercuryError;
use serde::Deserialize;
