code: function (checkDictionary) {
              this._checkDictionary = checkDictionary;
              var newSources = Object.keys(checkDictionary)
                  .filter(function (name) {
                      return checkDictionary[name] === "new";
                  })
                  .map(function (name) {
                      return new Source(this, {
                          name: name,
                          load: false
                      }, null);
                  }, this);
              // Add missing sources after the last loaded one
              if (newSources.length) {
                  this.sources = this.sources.concat(newSources);
              }
          }
docs: Provide information about sources
  
  @param {Object} checkDictionary Result of the check mechanism