@Override
    public DescribeReservedInstancesResult describeReservedInstances(DescribeReservedInstancesRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeReservedInstances(request);
    }
<p>
Describes one or more of the Reserved Instances that you purchased.
</p>
<p>
For more information about Reserved Instances, see <a
href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/concepts-on-demand-reserved-instances.html">Reserved
Instances</a> in the <i>Amazon EC2 User Guide</i>.
</p>
<note>
<p>
The order of the elements in the response, including those within nested structures, might vary. Applications
should not assume the elements appear in a particular order.
</p>
</note>

@param describeReservedInstancesRequest
       Contains the parameters for DescribeReservedInstances.
@return Result of the DescribeReservedInstances operation returned by the service.
@sample AmazonEC2.DescribeReservedInstances
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeReservedInstances" target="_top">AWS
     API Documentation</a>
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/AmazonEC2Client.java