Values.DescribeDomainChangeProgressRequestSourceContainer for the parameters to the DescribeDomainChangeProgress operation.
type nonrec t = {domainName : DomainName.t;The name of the domain to get progress information for.
*)changeId : GUID.t option;The specific change ID for which you want to get progress information. If omitted, the request returns information about the most recent configuration change.
*)}