Android – Adding an assets folder in Android Studio

Android Studio has changed its project structure yet again… now it is

project
└── app-module
    ├── manifests
    ├── res
    └── java

I've been looking everywhere online, but I can't find where to put the assets folder. When I try to create the folder via the directory viewer in Android Studio (right-click, New… directory) the "directory" option is not available. The only available options are:

Java Class
File
Module
Package
Image Asset

None of which will do what I want here.

Has anyone figured this out?