@Override
    public DescribeReservedDBInstancesResult describeReservedDBInstances(DescribeReservedDBInstancesRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeReservedDBInstances(request);
    }
<p>
Returns information about reserved DB instances for this account, or about a specified reserved DB instance.
</p>

@param describeReservedDBInstancesRequest
@return Result of the DescribeReservedDBInstances operation returned by the service.
@throws ReservedDBInstanceNotFoundException
        The specified reserved DB Instance not found.
@sample AmazonRDS.DescribeReservedDBInstances
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DescribeReservedDBInstances"
     target="_top">AWS API Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java