fun_app.erl:37: Fun application will fail since F :: fun((_,_,_) -> 'ok' | 'true') is not a function of arity 1
fun_app.erl:37: The created fun has no local return
fun_app.erl:38: Fun application will fail since F :: fun((_,_,_) -> 'ok' | 'true') is not a function of arity 2
fun_app.erl:38: The created fun has no local return
fun_app.erl:40: Fun application will fail since F :: fun((_,_,_) -> 'ok' | 'true') is not a function of arity 4
fun_app.erl:40: The created fun has no local return