plio.io.io_moon_minerology_mapper file missing

I am trying to work with M3 derived products such as band depths, etc. for which I need to use the command:
from plio.io.io_moon_minerology_mapper import M3

Howrever, since plio.io doesn't have the io_moon_minerology_mapper file, I am unable to import it so that I can work with my data using libpyhat derived functions. Is there any way I can get some help with this?

Start by checking the plio.io package and the import entry point `plio.io.io_moon_minerology_mapper.M3` to determine whether the module is absent or has moved. Confirm the expected M3-derived-product interface from the surrounding package or project history; done means the documented import works for the reported use case.

Written by the indexing model from the issue text.