def has_cache(self):
        """check if there is a processed data"""
        graph_path = os.path.join(self.save_path, self.save_name + ".bin")
        info_path = os.path.join(self.save_path, self.save_name + ".pkl")
        if os.path.exists(graph_path) and os.path.exists(info_path):
            return True

        return False
check if there is a processed data
python/dgl/data/rdf.py