Future<int> count([key_OR_range]) {
  try {
    var request = _count(key_OR_range);
    return _completeRequest(request);
  } catch (e, stacktrace) {
    return new Future.error(e, stacktrace);
  }
}
    © 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
    https://api.dart.dev/stable/2.5.0/dart-indexed_db/Index/count.html