code: def graph_path(self):
      return os.path.join(self.save_path, self.name + "_dgl_graph.bin")
  
file_path: dgl/examples/pytorch/gas/dataloader.py
imports: import os
  import dgl
  import numpy
  import scipy.io
  import torch
  from dgl.data import DGLBuiltinDataset
  from dgl.data.utils import _get_dgl_url, load_graphs, save_graphs
label_desc: Use image node_id 3 for calling the GASDataset obj's underlying member method code with example usage: obj.graph_path() and returns: os