How to get the Pixel fingerprint gesture on other Android phones

How do I use the Pixel fingerprint gesture on another Android phone? The fingerprint sensor on the Google Pixel isn't just for unlocking the phone; it performs a host of Move shortcuts. One of the most interesting and potentially useful of the bunch is swiping to pull down the notification shade, making one-handed operation (especially of the Pixel XL) much easier. That feature would be handy on other phones, no? Here's how to get it! How to enable fingerprint gestures on non-Pixel Android phone...