go: python3 -m mypy jewelry-mass ./jewelry-mass --piece-of-jewelry-mass 5 --bar-of-silver-mass 10 --piece-of-jewelry-volume 15 --bar-of-silver-volume 20 ./jewelry-mass --piece-of-jewelry-mass 10 --bar-of-silver-mass 5 --piece-of-jewelry-volume 15 --bar-of-silver-volume 10 ./jewelry-mass clean: rm -rf .mypy_cache