public Task<DescribeServiceAccessPoliciesResponse> DescribeServiceAccessPoliciesAsync(DescribeServiceAccessPoliciesRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeServiceAccessPoliciesRequestMarshaller();
var unmarshaller = DescribeServiceAccessPoliciesResponseUnmarshaller.Instance;
return InvokeAsync<DescribeServiceAccessPoliciesRequest,DescribeServiceAccessPoliciesResponse>(request, marshaller,
unmarshaller, cancellationToken);
}