grad( ) miss

[Zyjer888]

Hello author, this is a very nice work. I would like to ask: why is grad( ) in Train.py not defined? in line66 and 67
fgx,fgy=grad(fake_y_list)
gx,gy=grad(yimages)

[Neooolee]

I added grad function in myutils.py. You can use the updated myutils.py.