you propose it as an issue on the github (check for existence before creating!). that’s the place for others, also the Intel devs behind OpenCV, to give their opinions.
then you can look into building this. or look into it first. either way.
eh, I could imagine use cases… but since the general Python interface uses numpy arrays, which have a shape and dtype, there’s no “channels + dtype” compound type, and no real need to deal with those types generically.