code: function getSassReference(rawData) {
      // group sassdoc items (variables, mixins, functions, etc.) by @group
      var content = _.groupBy(rawData, (item) => item.group[0]);
  
      Object.keys(content).forEach((group) => {
          content[group] = content[group].map((item) => {
              // boolean flag for deprecated
              item.deprecated = typeof item.deprecated !== 'undefined'
              return item;
          });
  
          // group every sassdoc item by type
          content[group] = _.groupBy(content[group], (item) => item.context.type + 's');
      });
  
      return content;
  }
docs: Get sass reference view model from sassdoc raw data
  
  @param  {Array} rawData - sassdoc items
  @return {Object}