code: def save_checkpoint(state, filename="checkpoint.pth"):
      torch.save(state, filename)
  
file_path: gluon-cv/gluoncv/torch/utils/model_utils.py
imports: import os
  import hashlib
  import requests
  from tqdm import tqdm
  import torch
label_desc: Use image node_id 4 for calling a global function with example usage: save_checkpoint(state, filename) without return types