@Override
    public ModifyReservedInstancesResult modifyReservedInstances(ModifyReservedInstancesRequest request) {
        request = beforeClientExecution(request);
        return executeModifyReservedInstances(request);
    }
<p>
Modifies the configuration of your Reserved Instances, such as the Availability Zone, instance count, or instance
type. The Reserved Instances to be modified must be identical, except for Availability Zone, network platform,
and instance type.
</p>
<p>
For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ri-modifying.html">Modify
Reserved Instances</a> in the <i>Amazon EC2 User Guide</i>.
</p>

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