How to get the index of a radio button?

[nkraemer2]

After creating a radio button with:
radio = dpg.add_radio_button(["A", "B", "C"], default_value="B")
How do I get the index of the pressed button? dpg.get_value(radio) returns the selected string, but I'm looking for the index (e.g 0 for 'A').
I can use the following as a work around, but it seems like there should be a better way.

val = dpg.get_value(radio)
items = dpg.get_item_configuration(radio)
idx = items['items'].index(val)