Sc biar bot otomatis kirim pesan pembuka nama group dengan owner + yang leave juga

if op.type == 17:
            if op.param2 in Bots:
                return
            ginfo = cl.getGroup(op.param1)
            ki.sendText(op.param1, "Selamat Datang Di Grup " + str(ginfo.name))
            ki.sendText(op.param1, "Owner Grup " + str(ginfo.name) + " :\n" + ginfo.creator.displayName)
            print "MEMBER HAS JOIN THE GROUP"
        if op.type == 15:
            if op.param2 in Bots:
                return
            ki.sendText(op.param1, "Good Bye Kaka")
            print "MEMBER HAS LEFT THE GROUP"