code: public boolean isSet(String propName) {
          if (propName.equals("roles")) {
              return isSetRoles();
          }
          if (propName.equals("entitlements")) {
              return isSetEntitlements();
          }
          if (propName.equals("entitlementCheckResult")) {
              return isSetEntitlementCheckResult();
          }
          return false;
      }
docs: Returns true if the requested property is set; false, otherwise.
  
  @return
  returned object is {@link boolean }