Add bind9 as alias to named.service

i am get install BIND 9.14 from https://launchpad.net/~isc/+archive/ubuntu/bind i am using ubuntu 19.0.4 system, why it has no auto install bind9 services?

How i do fix it?

service bind9 status
Unit bind9.service could not be found.
root@vps3630:~# service bind9 start
Failed to start bind9.service: Unit bind9.service not found.
root@vps3630:~# /etc/init.d/rsyslog restart; /etc/init.d/bind9 start
[ ok ] Restarting rsyslog (via systemctl): rsyslog.service.
-bash: /etc/init.d/bind9: No such file or directory
root@vps3630:~# systemctl enable bind9
Failed to enable unit: Unit file bind9.service does not exist.