code: function UMLAttribute() {
          UMLStructuralFeature.apply(this, arguments);
  
          /** @member {string} */
          this.isDerived = false;
  
          /** @member {string} */
          this.aggregation = AK_NONE;
  
          /** @member {boolean} */
          this.isID = false;
      }
docs: UMLAttribute
  @constructor
  @extends UMLStructuralFeature