Simple BLE central peripheral

Does anyone have any sample code to get a Xenon BLE Peripheral to pair with an Argon central BLE. In a perfect world I’d like to press a button (GPIO pulled low) on the Xenon and an LED on the Argon lights up and the 2 particle devices are bonded.

I for the life of me cannot find and code base or samples to get me started.

any help would be greatly appreciated