Documenting App Lab functions for Performance Task?

In one of the webinar videos, they mention that students need to document libraries they are using; does that mean they have to cite built-in App Lab functions that are not native JS, like removeItem, appendItem, randomNumber? What about built-in libs like Math? The class has been treating these as part of the language, so want to make sure we don’t need to start making distinctions, as we are in the throes of PT written response!

I think it refers to any third-party libraries that they use, not native to the platform they are using. I believe, if they actually import a library they should cite it.