How to import external sdk or API (It is not rest API) and call their methods using Javascript

How to import external sdk or API (It is not rest API) and call their methods using Javascript.
I am unable to understand how and where i can add reference to external SDK .

Hi Neelu,
Yes, you can use external SDK library.
You need to add the libraries in the lib folder of Process Studio.
Also if you want to execute the same workflow on server, you need to copy the same libraries in the lib folder of Agent.