I’ve tried defining two different monetary units using
using Unitful: @dimension, @refunit, @u_str, uconvert
@dimension MU "MU" MonetaryUnit
@refunit USD "USD" USDollar MU false
@refunit EUR "EUR" Euro MU false
which unfortunately also results in an automatic conversion
uconvert(u"EUR", 1000u"USD")   # 1000 EUR
What would be the proper way to define both EUR and USD, to e.g. allow conversions from "EUR/s" to "EUR/hr" or "USD/s" to "USD/hr", while making sure that any conversion switching between monetary units fails?