[232] Error: arity of predicate p_2_out is unknown
   ╭─[ C:\Users\Q\AppData\Local\Temp\nemo-verify-kg9hpf1z\program.rls:2:1 ]
   │
 2 │ @export p_2_out :- csv {}.
   │ ────────────┬────────────  
   │             ╰────────────── arity of predicate p_2_out is unknown
   │ 
   │ Note: arity of predicates in import/export statements must be known in advance.
───╯
