mxydls

I don't understand either... Anyone who knows please help.

> I think this implementation is too obsecure to understand. I would recommend you refer to [DGL GraphSAGE](https://github.com/dmlc/dgl/blob/0.9.x/examples/pytorch/graphsage/node_classification.py) or [PyG GraphSAGE](https://github.com/pyg-team/pytorch_geometric/blob/master/examples/graph_sage_unsup.py), which are easier to use. That's helpful. Thanks a...