Issues with volume keys on HID

[kdb424]

I've managed to get a full keyboard working on my pyboard by sending bytestrings on my pyboard using pyb.hid. I however noticed that unlike circuitpython, we do not have a adafruit_hid.consumer_control library, which contains keys like volume. I have been searching around on how it works internally, but haven't been able to sort out how it works, and thus came here to ask how I would accomplish that in micropython.