public static String formatSecGroupPKeyAttributes(String separator, CFSecuritySecGroupBuff buff) {
   String retval =
       CFLibXmlUtil.formatRequiredInt64(separator, "ClusterId", buff.getRequiredClusterId())
           + CFLibXmlUtil.formatRequiredInt32(
               separator, "SecGroupId", buff.getRequiredSecGroupId());
   return (retval);
 }