When graph has multi edge between two nodes, graph.edge_ids(u,v) only return one edge.
I think dgl should give users warning if the graph has multi edges but set the return_uv = False
I think dgl should give users warning if the graph has multi edges but set the return_uv = False
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Hi, we actually have considered this option before. The major concern is the cost for checking multigraph is not negligible. I agree that multigraph is quite a unique case that users should pay attention to when processing graph data. We will emphasize that in our user guide and tutorial on processing and preparing graph dataset.
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