Create a 3rd party function library in C++ and use it as Blueprint function library
https://dev.epicgames.com/community/learning/tutorials/PYn7/unreal-engine-fab-c-creating-your-own-3rd-party-function-library-and-using-it-in-blueprints-part-2
Create a 3rd party function library in C++ and use it as Blueprint function library
https://dev.epicgames.com/community/learning/tutorials/PYn7/unreal-engine-fab-c-creating-your-own-3rd-party-function-library-and-using-it-in-blueprints-part-2