code: def print_dataset(train_dataset, test_dataset):
      num_nodes = num_edges = 0
      for data in train_dataset:
          data = RadiusGraph(0.2)(data)
          num_nodes += data.num_nodes
          num_edges += data.num_edges
      for data in test_dataset:
          data = RadiusGraph(0.2)(data)
          num_nodes += data.num_nodes
          num_edges += data.num_edges
  
      num_graphs = len(train_dataset) + len(test_dataset)
      print("Graphs", num_graphs)
      print("Nodes", num_nodes / num_graphs)
      print("Edges", (num_edges // 2) / num_graphs)
      print("Label rate", len(train_dataset) / num_graphs)
      print()
  
label_desc: Use image node_id 1 for calling a global function with example usage: print_dataset(train_dataset, test_dataset) without return types