I would like to do something like: ``` run --defaults ``` or: ``` run foo bar ``` but prevent: ``` run --defaults foo bar ``` It seems `xor` for positional arguments (flag with `arg:""`) does not do anything: there is no error if both are provided.
I would like to do something like:
or:
but prevent:
It seems
xorfor positional arguments (flag witharg:"") does not do anything: there is no error if both are provided.