code: public java.util.List<String> getHostReservationIdSet() {
          if (hostReservationIdSet == null) {
              hostReservationIdSet = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return hostReservationIdSet;
      }
docs: <p>
  The host reservation IDs.
  </p>
  
  @return The host reservation IDs.