docs: public DescribeReservedDBInstancesOfferingsResult withReservedDBInstancesOfferings(ReservedDBInstancesOffering... reservedDBInstancesOfferings) {
          if (this.reservedDBInstancesOfferings == null) {
              setReservedDBInstancesOfferings(new com.amazonaws.internal.SdkInternalList<ReservedDBInstancesOffering>(reservedDBInstancesOfferings.length));
          }
          for (ReservedDBInstancesOffering ele : reservedDBInstancesOfferings) {
              this.reservedDBInstancesOfferings.add(ele);
          }
          return this;
      }