Is there a function of ipaddress to get the subnet only from input like 192.168.1.129/25

[Daniel Flick]

<SNIP>
Peter, I am not following.  Are you saying that there is a function that returns the network only?  network_address was giving me the mask attached to the end but maybe I was doing something wrong.

For an input of LAN_IP=192.168.99.1/24 
ipaddress.IPv4Interface(LAN_IP).ip 
returns 192.168.99.0/24

I need the 192.168.99.0 part only.