def save(self):
        """save processed data to directory `self.save_path`"""
        graph_path = os.path.join(
            self.save_path, self.name + "_dgl_graph_{}.bin".format(self.hash)
        )
        save_graphs(str(graph_path), self.graph)
save processed data to directory `self.save_path`
python/dgl/data/fraud.py