def active
      @active = client.user.playlists.all.any? {|playlist| playlist == self && playlist.active?} if @active.nil?
      @active
    end
def active
      @active = client.user.playlists.all.any? {|playlist| playlist == self && playlist.active?} if @active.nil?
      @active
    end
Whether this is the currently active playlist

 @return [Boolean]
 @raise [Turntabler::Error] if the command fails
 @example
   playlist.active   # => true