public void setReservedInstancesModificationId(String reservedInstancesModificationId) {
        this.reservedInstancesModificationId = reservedInstancesModificationId;
    }
<p>
A unique ID for the Reserved Instance modification.
</p>

@param reservedInstancesModificationId
       A unique ID for the Reserved Instance modification.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/ReservedInstancesModification.java