extern const sd_bus_vtable bus_job_vtable[];
-int bus_job_method_cancel(sd_bus *bus, sd_bus_message *message, void *job, sd_bus_error *error);
+int bus_job_method_cancel(sd_bus_message *message, void *job, sd_bus_error *error);
void bus_job_send_change_signal(Job *j);
void bus_job_send_removed_signal(Job *j);