code: def __init__(self, graphs, diff_graphs, labels):
      super(TUDataset, self).__init__(name="tu")
      self.graphs = graphs
      self.diff_graphs = diff_graphs
      self.labels = labels
  
file_path: dgl/examples/pytorch/mvgrl/graph/dataset.py
imports: import os
  import re
  from collections import Counter
  import dgl
  import networkx
  import numpy
  import torch
  from dgl.data import DGLDataset
  from scipy.linalg import fractional_matrix_power, inv
label_desc: Use image node_id 1 to create a new TUDataset object from inherited base classes: DGLDataset with example: obj = TUDataset(graphs, diff_graphs, labels)