Constructor instantiated by the DOM when a custom element has been created.
This can only be called by subclasses from their created constructor.
RadialGradientElement.created() : super.created();
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-svg/RadialGradientElement/RadialGradientElement.created.html