Can you use the template variable DIR_GRADLEPROJECT to change gradle project location?

I have a problem where I have to know the specific location where the Gradle project exported from Unity will be placed. I have to mention that I know you can export the project, but I want to build my project directly inside of Unity.

So I read in the documentation here https://docs.unity3d.com/Manual/android-gradle-overview.html I saw the DIR_GRADLEPROJECT and that seems to point towards being able to change the location of the gradle project?

Can someone confirm this and if so, how do I use it? I have no clue what the syntax is for using something like that and I can't find any examples of it being used.