public Task AppendToStream(string streamId, int expectedVersion, params EventData[] events)
{
Guard.IsNotNullOrEmpty(nameof(streamId), streamId);
var storageEvents = new List <StorageEvent>();
var eventVersion = expectedVersion;
for (var i = 0; i < events.Length; i++)
{
storageEvents.Add(new StorageEvent(streamId, events[i], ++eventVersion));
}
return(engine.AppendToStream(streamId, storageEvents));
}