nginx 1.10.1: how to integrate the icap protocoll || a icap client to communicate with sophos icap server

Hi,

I have already done a icap Implementation by squid.
Now I must also implement the icap Protocol || a icap client at nginx.
I can´t not find anything in the forum or on the Web about nginx with icap.
Is the icap Protocol || a icap client integrated as standard in nginx?
If not: Is there an additional module for icap communication or how you would integrate icap?
Maybe I would write a icap-client in python and integrate this as multithreaded daemon, but nginx module would there already be a better solution.
thx for your help
lg