public VO_UNIT_EXTEND_INFO getVO_UNIT_EXTEND_INFO() {
   return vo == null ? builder.build() : vo;
 }
 /** @param level <u>do not has any annotate.</u> */
 public void setLevel(Integer level) {
   builder.setLevel(level);
 }
 /** @param exp <u>do not has any annotate.</u> */
 public void setExp(Integer exp) {
   if (exp != null) {
     builder.setExp(exp);
   }
 }
 /** @param race <u>do not has any annotate.</u> */
 public void setRace(Integer race) {
   if (race != null) {
     builder.setRace(race);
   }
 }