NameError for args in eval.integrate_backwards

[safonova]

When calling integrate_backwards() outside eval.py, I get the error

in integrate_backwards
int_tps = np.linspace(args.int_tps[0], args.int_tps[-1], ntimes)
NameError: name 'args' is not defined

This issue is not present when integrate_backwards() is called within eval.py itself. The source of the error is on this line:

TrajectoryNet/TrajectoryNet/eval.py

Line 288 in 10df9e0

int_tps = np.linspace(args.int_tps[0], args.int_tps[-1], ntimes)