/**
 * Register event listener on document that fires when:
 * * tab change or tab close (in mobile or desktop)
 * * click back / forward button
 * * click any link or perform any other navigation action
 * * soft refresh / hard refresh
 *
 * adapted from https://stackoverflow.com/questions/3239834/window-onbeforeunload-not-working-on-the-ipad/52864508#52864508,
 */
export declare const onPageChange: (cb: (unloaded: boolean) => void) => void;
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