How to keep an instantiated class in memory?

[mkevison]

Hello guys!

I'm creating a bot in puppeteer, and for every user who is online in my application I want to have a puppeteer open for him (there will be a maximum of 3 users logged into my application, no more than that), and when the user makes a request, my application go in the puppeteer that is associated with my user and execute some method.

How do I instantiate a class from my puppeteer and keep it in memory and call it through an identifier tied to my user?