How to Tap using Coordinates

Hello everyone,
I have a Automated test case that I wrote using Opentest, Appium, and the language is in YAML. My automated code creates a order, places order, and then retrieves the order, but after the order is officially placed the phone goes to sleep without trying to continue and retrieve the order, and the display screen still on. However if I tap anywhere on the screen to wake it up it will continue the Automation. But if I don’t interact with the phone, it will just be stuck on a certain page and will fail my test.

And my question is how to automate tapping the screen using coordinates please?