docs: function (content, type) {
          var results = {};
  
          if (content === undefined) {
              return results;
          }
  
          _.forEach(content, function (element, key) {
              if (element === undefined || element.type === undefined || element.type !== type) {
                  return;
              }
  
              results[key] = element;
          });
  
          return results;
      }