how can i get all the parameters of one layer about pytorch2caffe HOT 1 OPEN

Now i use "pytorch2caffe" to convert to my model.
When it convert "torch.cat",it tell me the message as following:
AttributeError: 'CatBackward' object has no attribute 'dim'
I check it in pytorch ,actually it has this parameter:
torch.cat(seq, dim=0, out=None)

So I wonder what kind of parameters "output_var.grad_fn" take....

In pytorch2prototxt(),for the convolution layer,you can get parameters in this way:
func.padding[0]
func.stride[0]

If I want to see all the parameters of convolution layer,how should i do?

Itry "print func",it's not right;If try "print func.padding[0]",it's ok!

Now for a new layer which i don't know what kind of parameters it takes,how can i print all the parameters?

Thanks for it.

from pytorch2caffe.