init method
init
Implementation
UIBarButtonItem init() {
objc.checkOsVersionInternal('UIBarButtonItem.init', iOS: (false, (2, 0, 0)), macOS: (false, (10, 0, 0)));
final _ret = _objc_msgSend_151sglz(this.ref.retainAndReturnPointer(), _sel_init);
return UIBarButtonItem.castFromPointer(_ret, retain: false, release: true);
}