code: def skip
        assert_current_song
        api('room.stop_song', :songid => id, :djid => played_by.id, :roomid => room.id, :section => room.section)
        true
      end
docs: Skips the song.
  
   @return [true]
   @raise [Turntabler::Error] if the command fails
   @raise [Turntabler::Error] if the song is not playing in the current song
   @example
     song.skip   # => true