Imagenet example broken

[desimone]

Looks like the following lines got deleted

model_names = sorted(name for name in models.__dict__
    if name.islower() and not name.startswith("__")
    and callable(models.__dict__[name]))

Causing an undefined variable error.

Traceback (most recent call last):
  File "main.py", line 25, in <module>
    choices=model_names,
NameError: name 'model_names' is not defined