mutableOrderedSetValueForKey_ method
Implementation
NSMutableOrderedSet mutableOrderedSetValueForKey_(NSString key) {
final _ret = _lib._objc_msgSend_505(
_id, _lib._sel_mutableOrderedSetValueForKey_1, key._id);
return NSMutableOrderedSet._(_ret, _lib, retain: true, release: true);
}