Arris VIP5202 (KPN receiver)

Hi,

Is it possible to make an integration for the Arris VIP5202? I saw that there is already an integration for the Arris TG2492LG - Home Assistant
Maby it is possible to use some code of that integration?

I would like to build the integration myself, but have never built an integration for HA. maybe someone can help me to start up?

Thanks.