code: function () {
              if (_.isString(this.stereotype) && (this.stereotype.length > 0)) {
                  return "«" + this.stereotype + "»";
              } else if (this.stereotype instanceof type.Model) {
                  return "«" + this.stereotype.name + "»";
              }
              return "";
          }
docs: Get stereotype string
  
  @memberof UMLElementMixin
  @return {string}