These Pinion MGUs (Motor Gearbox Unit) contain;
Both an auto shifted 9 or 12 speed manual gearbox
and
a high efficiency PM motor. (= generator)
https://pinion.eu/en/e-drive/
A high efficiency PM motor is just a generator when you turn the shaft, so this thing has the potential to be a high efficiency, auto geared, alternator replacement.
You could turn your aircon pump etc at relatively constant rpm through the same gearbox.
But most ( see endless Sphere) E-bike makers like to encrypt their controllers and put multi wires and chips into their motors as a way to stop people from being able to repair them.
I don't know if that's the case here, but is very likely.
E-mailing them to suggest a use case is useless as you get read (if at all) by some low IQ, low income idiot they hired to answer E-mails and only taught to sell them.
Sad really.