protected override Task<IAsyncEnumerator<RavenJObject>> GetDocuments(Etag lastEtag)
{
const int dummy = 0;
var enumerator = _database.GetDocuments(dummy, SmugglerOptions.BatchSize, lastEtag)
.ToList()
.Cast<RavenJObject>()
.GetEnumerator();
return new CompletedTask<IAsyncEnumerator<RavenJObject>>(new AsyncEnumeratorBridge<RavenJObject>(enumerator));
}