Formatting values without units?

[eclairevoyant]

The modules that output large values (e.g. network, disk) output them as a fully formatted string with units.
Is there a way to remove the units and just have the raw numerical value? This would allow proper formatting (e.g. rounding, since I don't care about tenths of a GiB for disk usage, or hiding units since I know it's always GiB).

Worst case I can run my own console commands and parse the output manually, but I think that would defeat the purpose of using waybar.