docs: function() {
          /**
           * The category of the elements.
           * @type {number}
           * @see ESourceElementCategories
           */
          this.nCategory = ESourceElementCategories.N_OTHER;
          /**
           * The number of occurrences (within the elements) of each primitive
           * value that could be consolidated.
           * @type {!Array.<!Object.<string, number>>}
           */
          this.aCount = [];
          this.aCount[EPrimaryExpressionCategories.N_IDENTIFIER_NAMES] = {};
          this.aCount[EPrimaryExpressionCategories.N_STRING_LITERALS] = {};
          this.aCount[EPrimaryExpressionCategories.N_NULL_AND_BOOLEAN_LITERALS] =
              {};
          /**
           * Identifier names found within the elements.
           * @type {!Array.<string>}
           */
          this.aIdentifiers = [];
          /**
           * Prefixed representation Strings of each primitive value that could be
           * consolidated within the elements.
           * @type {!Array.<string>}
           */
          this.aPrimitiveValues = [];
        }