public override async Task WriteObjectToAsync(ObjectWriter writer, CancellationToken cancellationToken)
{
var text = await _state.GetTextAsync(cancellationToken).ConfigureAwait(false);
// TODO: make TextDocumentState to implement ISupportTemporaryStorage?
_serializer.SerializeSourceText(_state.Storage as ITemporaryStorageWithName, text, writer, cancellationToken);
}
