anchor.diff:      e.animationName,
       e.elapsedTime,
       e.pseudoElement,
  -  );
  +  )
  +    // ignore: invalid_use_of_protected_member
  +    ..$$jsPersistDoNotSetThisOrYouWillBeFired = () => e.persist();
   }
   
   /// Wrapper for [SyntheticUIEvent].
  
positive.code:     e.screenX,
      e.screenY,
      e.shiftKey,
    );
  }
  
  /// Wrapper for [SyntheticTouchEvent].
  
negative.code:     e.deltaMode,
      e.deltaY,
      e.deltaZ,
    )
      // ignore: invalid_use_of_protected_member
      ..$$jsPersistDoNotSetThisOrYouWillBeFired = () => e.persist();
  }
  