Make config_path an optional positional argument
Make config_path an optional positional argument

rizar/attention-lvcsr,nke001/attention-lvcsr,nke001/attention-lvcsr,nke001/attention-lvcsr,rizar/attention-lvcsr,nke001/attention-lvcsr,rizar/attention-lvcsr,nke001/attention-lvcsr,rizar/attention-lvcsr,rizar/attention-lvcsr