#import
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#pagetransitionevent
[Exposed=Window, UseNewAKString]
interface PageTransitionEvent : Event {
constructor(DOMString type, optional PageTransitionEventInit eventInitDict = {});
readonly attribute boolean persisted;
};
dictionary PageTransitionEventInit : EventInit {
boolean persisted = false;
};