no default_value for radio_box

[Ol1B]

Is it possible to have a radio_box with 2 options, but by default none of them are clicked?
As soon as you click one, you obviously can't "unclick" it again, only by code.
dpg.add_radio_button(["A", "B"], default_value=None, horizontal=True)
It should look smth like this (without the left to right A, i know that's not possible and it's also not important)