initWithCoder_ method
Implementation
@override
NSMutableSet? initWithCoder_(NSCoder coder) {
final _ret =
_lib._objc_msgSend_46(_id, _lib._sel_initWithCoder_1, coder._id);
return _ret.address == 0
? null
: NSMutableSet._(_ret, _lib, retain: true, release: true);
}