is the object 'accelerator' in https://github.com/lnls-fac/va/blob/master/va/pvs/si.py#L71 intended to be persistent? if not, we should delete its reference in the module after using it.
is the object 'accelerator' in https://github.com/lnls-fac/va/blob/master/va/pvs/si.py#L71 intended to be persistent? if not, we should delete its reference in the module after using it.