Why Nvidia gameworks flow 4.19 not showing up in ue4.19.2?

I integrated NvFlow 4.19 and i am not seeing it in my ue4.19.2 why? And github is also doesn’t warns us before that the module is compatible or not. sample content i got with that was in 4.19.1 so that worked correctly (probably) But when i start ue4.19.2 i see nothing related to flow in it, it seems as if it never got integrated in first place.