code: @Override
      public DescribeReservedDBInstancesOfferingsResult describeReservedDBInstancesOfferings(DescribeReservedDBInstancesOfferingsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeReservedDBInstancesOfferings(request);
      }
docs: <p>
  Lists available reserved DB instance offerings.
  </p>
  
  @param describeReservedDBInstancesOfferingsRequest
  @return Result of the DescribeReservedDBInstancesOfferings operation returned by the service.
  @throws ReservedDBInstancesOfferingNotFoundException
  Specified offering does not exist.
  @sample AmazonRDS.DescribeReservedDBInstancesOfferings
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DescribeReservedDBInstancesOfferings"
  target="_top">AWS API Documentation</a>