4.19 gameworks need help enabling GRB'S

so the part i am stuck on is…
GCudaContextManager = PxCreateCudaContextManager(*GPhysXFoundation, CudaContextManagerDesc); //added by r
i cannot for the life of me figure out how to define or input the proper headers for GCudaContextManager as i have no clue where it is trying to call from

i figured it out. now i’m stuck at… PCookingParams and i definitely have no clue where it comes from.
edit! apparently it is derived from PxCooking.h header file and i added that into the headers but i don’t know how to declare/define it.