Can't find option to include arr package

Question

I am new to Android studio and i wanted to include arr file in my kotlin project.

Since I am running mac, I followed this answer: https://stackoverflow.com/a/56874328/8701527

I go to project structure, modules and click on + icon

and this shows me this popup, instead of the new module from where I can add aar package.

Question: Can someone please help me with adding aar package?