copy method
copy
Implementation
objc.ObjCObjectBase copy() {
objc.checkOsVersionInternal(
'NSObject.copy',
iOS: (false, (2, 0, 0)),
macOS: (false, (10, 0, 0)),
);
final _ret = _objc_msgSend_151sglz(this.ref.pointer, _sel_copy);
return objc.ObjCObjectBase(_ret, retain: false, release: true);
}