function warn(action, result) {
	    var warningCondition = false;
	    process.env.NODE_ENV !== 'production' ? warning(warningCondition, 'This synthetic event is reused for performance reasons. If you\'re seeing this, ' + 'you\'re %s `%s` on a released/nullified synthetic event. %s. ' + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result) : void 0;
	  }
@interface Event
@see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
     /#events-inputevents