inspect_message_wrong.mo:10.4-10.29: type error [M0127], system function inspect is declared with type
  () -> ()
instead of expected type
  {
    arg : Blob;
    caller : Principal;
    msg :
      {
        #inc : () -> ();
        #read : () -> ();
        #reset : () -> ();
        #set : () -> Nat
      }
  } -> Bool