code: def METR_LAGraphDataset():
      if not os.path.exists("data/graph_la.bin"):
          if not os.path.exists("data"):
              os.mkdir("data")
          download_file("graph_la.bin")
      g, _ = dgl.load_graphs("data/graph_la.bin")
      return g[0]
  
imports: import os
  import ssl
  import dgl
  import numpy
  import torch
  from six.moves import urllib
  from torch.utils.data import DataLoader, Dataset
label_desc: Use image node_id 2 for calling a global function with example usage: METR_LAGraphDataset() and returns: g