public static async Task <(MemoryStream ms, int innerLength)> WriteItemsToBufferedStream(
IAsn1Serializer asn1Serializer, IEnumerable <Asn1Object> items, CancellationToken cancellationToken)
{
var ms = new MemoryStream();
var sequenceItemsBytes = 0;
foreach (var part in items)
{
sequenceItemsBytes += await asn1Serializer.Write(part, ms, cancellationToken);
}
await ms.FlushAsync(cancellationToken);
ms.Position = 0;
return(ms, sequenceItemsBytes);
}
