const char *label,
sd_bus_message **ret);
-int bus_message_get_arg(sd_bus_message *m, unsigned i, const char **str, char ***strv);
+int bus_message_get_arg(sd_bus_message *m, unsigned i, const char **str);
+int bus_message_get_arg_strv(sd_bus_message *m, unsigned i, char ***strv);
int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);