Correct way to have multiple instances

[cinderblock]

I have a need to use this package with two different scales simultaneously. Unfortunately new angles() doesn't work. Is there a nice way this could be implemented? Or would this need a new breaking api?

[infusion]

I think the least breaking option would be to add one optional parameter to every function. Since this is just a function collection, I wanted to have the functions all static.

[infusion]

Would a second parameter work? Or is this not relevant anymore?