code: function(attribute) {
    if (this instanceof RangeRetrievalSpecifierAttribute) {
      if (! attribute) throw new Error('No attribute provided to create a range retrieval specifier.');
      if (typeof(attribute) === 'string') {
        attribute = parseRangeRetrievalSpecifierAttribute(attribute);
      }
  
      for(var property in attribute) {
        if (Array.prototype.hasOwnProperty.call(attribute, property)) {
          this[property] = attribute[property];
        }
      }
    }
    else {
      return(new RangeRetrievalSpecifierAttribute(attribute));
    }
  }
docs: Multi-valued attribute range retreival specifier.
  
  @private
  @constructor
  @param {String|Object} attribute The actual attribute name. May also contain a full range retrieval specifier for parsing. (i.e. [attribute];range=[low]-[high]). Optionally an object can be specified.
  @returns {RangeRetrievalSpecifierAttribute}