code: def num_rels(self):
      return 8
  
file_path: pytorch_geometric/test/nn/models/test_re_net.py
imports: import torch
  from torch_geometric.datasets.icews import EventDataset
  from torch_geometric.loader import DataLoader
  from torch_geometric.nn import RENet
  from torch_geometric.testing import is_full_test
label_desc: Use image node_id 3 for calling the MyTestEventDataset obj's underlying member method code with example usage: obj.num_rels() and returns: int