code: def process(self):
      return
  
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 2 for calling the TUDataset obj's underlying member method code with example usage: obj.process() without return types