NameError: name 'cmd_args' is not defined

wehn try to type
> python Main.py --data-name USAir

or type:
> python Main.py --data-name XXX --hop 'auto' --batch-size 1

it reports as follows
`NameError: name 'cmd_args' is not defined`
What's the `cmd_args`? Doesn't it refer to `--data-name USAir` ?