TransitionEvent constructor
      
      TransitionEvent(
    
    
- String type, [
 - TransitionEventInit? transitionEventInitDict
 
Implementation
factory TransitionEvent(
  _i2.String type, [
  _i3.TransitionEventInit? transitionEventInitDict,
]) =>
    _i4.callConstructor(
      _declaredTransitionEvent,
      [
        type,
        transitionEventInitDict ?? _i6.undefined,
      ],
    );