void define(String name, Object constructor, [Map options]) {
  if (options != null) {
    var options_1 = convertDartToNative_Dictionary(options);
    _define_1(name, constructor, options_1);
    return;
  }
  _define_2(name, constructor);
  return;
}
    © 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
    https://api.dart.dev/stable/2.5.0/dart-html/CustomElementRegistry/define.html