code { UPDATE } ;
input { Stack_elt string "3" ; Stack_elt (option string) (Some "three") ; Stack_elt (big_map string string) { Elt "1" "one" ; Elt "2" "two" } } ;
output { Stack_elt (big_map string string) { Elt "1" "one" ; Elt "2" "two" ; Elt "3" "three" } }