URLByAppendingPathExtension_ method
Implementation
NSURL? URLByAppendingPathExtension_(NSString pathExtension) {
final _ret = _lib._objc_msgSend_256(
_id, _lib._sel_URLByAppendingPathExtension_1, pathExtension._id);
return _ret.address == 0
? null
: NSURL._(_ret, _lib, retain: true, release: true);
}