open Lib;;
if not true then raise Not_found;;
(**
0 CONSTINT 42
2 PUSHACC0
3 MAKEBLOCK1 0
5 POP 1
7 SETGLOBAL Lib
9 CONST1
10 BOOLNOT
11 BRANCHIFNOT 18
13 GETGLOBAL Not_found
15 MAKEBLOCK1 0
17 RAISE
18 ATOM0
19 SETGLOBAL T071-boolnot
21 STOP
**)