public static async Task <CertificateDetail> DescribeCertificateByDomainName(this ACMHelper acm, string domainName, CancellationToken cancellationToken = default(CancellationToken))
{
var certificatesSummary = await acm.ListCertificatesAsync(cancellationToken);
var named = certificatesSummary.Where(x => x.DomainName == domainName);
var details = await named.ForEachAsync(cs => acm.DescribeCertificateAsync(cs.CertificateArn, cancellationToken),
acm._maxDegreeOfParalelism, cancellationToken);
return(details.OrderByDescending(x => x.Certificate.IssuedAt)
.FirstOrDefault(x => x.Certificate.Status == CertificateStatus.ISSUED)?.Certificate);
}
