*[<Null safety>](https://dart.dev/null-safety)*
void open (dynamic flags, int mode, String path, InterfaceRequest request, [dynamic parentFlags])
void open( OpenFlags flags, int mode, String path, InterfaceRequest<Node> request, [OpenFlags? parentFlags]) { if (type() == DirentType.directory) { // dir types should implement this function throw UnimplementedError(); } sendErrorEvent(flags, ZX.ERR_NOT_DIR, request); }