Maqueen - Micro:bit - control in micropython robot maqueen - no documetation about I2C motor

Hello

I am working with robot car type for Micro:bit Maqueen, wich is a great product.
currently tutorials are for makecode , block programming. I am coding basic tutorial in micro python of micro:bit for each sensor, led , etc of maqueen. good progress with neopixels, leds, ultrasonic sensor, .. but i am blocked with the 2 motor shiled with i2c interface

I see in extension for makecode that adres is 0x10 and that apparently to ocntrol motos you should write 3 bytes : 1st id of motor, 2nd for CW or CCW, last for speed. this i2c.write commands works but not as expected according makecode extension.

Please can you provideme the documentation of motor shield of maqueen to code a driver in micropython of micro:bit.

Thanks