(<{'mpris:trackid': <'spotify:track:4KMZRXTQtMo0iVf3GU20fY'>, 'mpris:length': <uint64 201840000>, 'mpris:artUrl': <'https://open.spotify.com/image/ad56afd1f54dab2aa9b4e0f31a663fb2ca531d9c'>, 'xesam:album': <'<I°_°I>'>, 'xesam:albumArtist': <['Caravan Palace']>, 'xesam:artist': <['Caravan Palace']>, 'xesam:autoRating': <0.44>, 'xesam:discNumber': <1>, 'xesam:title': <'Mighty feat. JFTH'>, 'xesam:trackNumber': <3>, 'xesam:url': <'https://open.spotify.com/track/4KMZRXTQtMo0iVf3GU20fY'>}>,)


and second command


y -o / -r
node / {
  node /org {
    node /org/mpris {
      node /org/mpris/MediaPlayer2 {
        interface org.freedesktop.DBus.Properties {
          methods:
            Get(in  s interface_name,
                in  s property_name,
                out v value);
            GetAll(in  s interface_name,
                   out a{sv} properties);
            Set(in  s interface_name,
                in  s property_name,
                in  v value);
          signals:
            PropertiesChanged(s interface_name,
                              a{sv} changed_properties,
                              as invalidated_properties);
          properties:
        };
        interface org.freedesktop.DBus.Introspectable {
          methods:
            Introspect(out s xml_data);
          signals:
          properties:
        };
        interface org.freedesktop.DBus.Peer {
          methods:
            Ping();
            GetMachineId(out s machine_uuid);
          signals:
          properties:
        };
        interface org.mpris.MediaPlayer2.Player {
          methods:
            Next();
            Previous();
            Pause();
            PlayPause();
            Stop();
            Play();
            Seek(in  x Offset);
            SetPosition(in  o TrackId,
                        in  x Position);
            OpenUri(in  s unnamed_arg0);
          signals:
            Seeked(x Position);
          properties:
            readonly s PlaybackStatus;
            readwrite s LoopStatus;
            readwrite d Rate;
            readwrite b Shuffle;
            readonly a{sv} Metadata;
            readwrite d Volume;
            readonly x Position;
            readonly d MinimumRate;
            readonly d MaximumRate;
            readonly b CanGoNext;
            readonly b CanGoPrevious;
            readonly b CanPlay;
            readonly b CanPause;
            readonly b CanSeek;
            readonly b CanControl;
        };
      };
    };
  };
};