Handling pop-up window Metamask extension - Selenium

Question

I have been trying to find out how to call upon a pop-up window from an extension, in this case 'Metamask'. Is there a way to call upon the elements inside the pop-up?

See image here

https://www.selenium.dev/documentation/webdriver/interactions/windows/

Used the official website to search for codes, but cannot find something that is able to do so.

Thanks in advance!

Tried accessing the pop-up window to find xpath elements, but can't be found.