code: def main():
      args = parse_args()
  
      try:
          features_device = int(args.features_device)
      except ValueError:
          features_device = args.features_device
  
      train(args.device, features_device, args.num_epochs)
  
file_path: cugraph/python/cugraph-pyg/cugraph_pyg/examples/graph_sage_sg.py
imports: import time
  import argparse
  import gc
  import torch
  from torch_geometric.nn import CuGraphSAGEConv
  import torch.nn
  import torch.nn.functional
  from typing import Union
label_desc: Use image node_id 4 for calling a global function with example usage: main() without return types