public Task<DescribeReservedInstancesModificationsResponse> DescribeReservedInstancesModificationsAsync(DescribeReservedInstancesModificationsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeReservedInstancesModificationsRequestMarshaller();
var unmarshaller = DescribeReservedInstancesModificationsResponseUnmarshaller.Instance;
return InvokeAsync<DescribeReservedInstancesModificationsRequest,DescribeReservedInstancesModificationsResponse>(request, marshaller,
unmarshaller, cancellationToken);
}