add: register_timer(timer, 0, timer_interval);
context: static int mod_init(void){	load_tm_f load_tm;	DBG("Presence Agent - initializing\n");	/* import the TM auto-loading function */	if ( !(load_tm=(load_tm_f)find_export("load_tm", NO_SCRIPT, 0))) {		LOG(L_ERR, "Can't import tm\n");		return -1;	}	/* let the auto-loading function load all TM stuff */	if (load_tm( &tmb )==-1)		return -1;		return 0;}