what's the right way to restart knotify4?

I ran zypper ps and I see that I need to restart knotify4. I tried searching Google and I checked to see if something like /etc/init.d/knotify4 restart would work. No luck. So how do I do it? Thanks

Seems that knotify4 can be restarted just like any other process:


$ pkill knotify4
$ knotify4