Integrating C++ library(dll) into Unity C#

If you send me the dll library with methods and parameters le methods that you need use. I can make a sample.

I'm a highly motivated agile Unity Game Developer from Ukraine with 6+ years of experience in the game industry. I have implemented a lot of third party c++ DLLs in unity . So will not have any efforts to do this. More accurate bid and time i can say after you give me more details about project