class TEST create make feature make local b: BOOLEAN a1, a2: A do b := ({BOOLEAN}).attempted (True) io.put_boolean (b) io.put_new_line a1.set (12, "TITI") a2 := ({A}).attempted (a1) io.put_integer (a2.a) io.put_new_line check attached {STRING} a2.s as s then io.put_string (s) end io.put_new_line end end