How to get the values of 'torch._C.Value'

I am working to export a trained model to other format. Now I can get the graph and nodes from onnx export function but I cannot read the parameters of some operations(or layers like convolution) of network. these values sames be stored in the instance of ‘torch._C.Value’. Anyone know how to read the parameters?

Thanks.

I have the same problem,so have you fix it?