def save(self):
        """save the graph list and the labels"""
        if self.save_graph:
            graph_path = os.path.join(
                self.save_path, "dgl_graph_{}.bin".format(self.hash)
            )
            save_graphs(str(graph_path), self.graphs, {"labels": self.labels})
save the graph list and the labels
python/dgl/data/minigc.py