public Task<DescribeApplicationVersionsResponse> DescribeApplicationVersionsAsync(DescribeApplicationVersionsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeApplicationVersionsRequestMarshaller();
var unmarshaller = DescribeApplicationVersionsResponseUnmarshaller.Instance;
return InvokeAsync<DescribeApplicationVersionsRequest,DescribeApplicationVersionsResponse>(request, marshaller,
unmarshaller, cancellationToken);
}