def download_data
      scraper_data = {}

      @data_to_get.each do |data_category|
        if /liked_(.*)/ =~ data_category
          argument = $1.to_sym  # :tracks, :artists, :stations or :albums
          scraper_data[data_category] = @scraper.public_send(:likes, argument)
        else
          scraper_data[data_category] = @scraper.public_send(data_category)
        end
      end

      scraper_data
    end
def download_data
      scraper_data = {}

      @data_to_get.each do |data_category|
        if /liked_(.*)/ =~ data_category
          argument = $1.to_sym  # :tracks, :artists, :stations or :albums
          scraper_data[data_category] = @scraper.public_send(:likes, argument)
        else
          scraper_data[data_category] = @scraper.public_send(data_category)
        end
      end

      scraper_data
    end
Downloads the user's desired data.
 @return [Hash]