Johnmcsuny

Hi, I'm running a model in maml training. but an error occur: `No gradient defined for operation ``'tower0/gradients/tower0/roi_align/crop_and_resize/CropAndResize_grad/CropAndResizeGradImage' (op type: CropAndResizeGradImage)` I've noticed that in `special_grads.py` you wrote `@ops.RegisterGradient("MaxPoolGrad") def...

what is the target means in def forward(self, img, target=None)

1

`def forward(self, img, target=None):` what does the target stand for in this function argument? Is there a sample or description? thanks