fn get_third[T](&tup(T,T,T) t) -> T {
  ret t._2;
}

fn main() {
  log get_third(tup(1,2,3));
  assert (get_third(tup(1,2,3)) == 3);
  assert (get_third(tup(5u8,6u8,7u8)) == 7u8);
}