Tested with an RPI Pico.
Depends on Adafruit's register and i2c_device libraries. See our micropython port of i2c_device here. Adafruit's CircuitPython register (here) seems to work unchanged.
as7341.py needs the files i2c_bit.py, i2c_bits.py, and i2c_struct.py from register, and i2c_device.py from i2c_device.
See Adafruit's AS7341 circuitpython library repository for other usage examples (they will need to be ported). A simple example is shown in ./test.py.
An additional get_readings() method is provided to abstract away from the individual channels and wavelengths.
It additionally ignores all OSErrors via try-catch and calls itself recursively if one is encountered (specific to AHS's Electronics Workshop class).