Need to integrate version 3 API with .Net SDK

Hi,

We wanted add contact to CC library from our Dot Net Application using V3 API.

We follow below link to integrate V2 API using Dot Net sdk

https://stackoverflow.com/questions/31595352/using-the-constant-contact-c-sharp-net-sdk-v2-to-create-add

but we are not finding any solution to integrate V3 API in Dot Net.

Can please help!