def favorites
      return @favorites if @favorites
      resp = @client.request('getFavorites', ofWhat: 'Songs', userID: @id)
      @favorites = resp.map { |s| Song.new(s) }
    end
def favorites
      return @favorites if @favorites
      resp = @client.request('getFavorites', ofWhat: 'Songs', userID: @id)
      @favorites = resp.map { |s| Song.new(s) }
    end
--------------------------------------------------------------------------
 User Favorites
 --------------------------------------------------------------------------
 Get user favorites