public Task<DescribeAvailabilityOptionsResponse> DescribeAvailabilityOptionsAsync(DescribeAvailabilityOptionsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeAvailabilityOptionsRequestMarshaller();
var unmarshaller = DescribeAvailabilityOptionsResponseUnmarshaller.Instance;
return InvokeAsync<DescribeAvailabilityOptionsRequest,DescribeAvailabilityOptionsResponse>(request, marshaller,
unmarshaller, cancellationToken);
}