anchor.diff:  import 'leafletjs_js_bindings/Icon.dart' as L;
   import 'leafletjs_js_bindings/geo.dart' as L;
   import 'leafletjs_js_bindings/Util.dart' as L;
  +import 'Events/MouseEvent.dart' as L;
   
   JsObject toJs(var obj){
    if (obj is JsInterface) return asJsObject(obj);
  
positive.code: import 'package:polymer/polymer.dart';
  import 'package:js_wrapping/js_wrapping.dart';
  
  export 'leafletjs_js_bindings/geo.dart';
  export 'leafletjs_js_bindings/Icon.dart';
  
  
negative.code:     );
    }
  
    asyncDeliverChanges() async => deliverChanges();
    
    _initMap() {
      var targetElement = $['leafletjs-map'];
  