code: def create_payload():
      weights = {"weight": torch.zeros((2, 2))}
      save_file(weights, filename)
  
      with open(filename, "r+b") as f:
          f.seek(0)
          # Now the header claims 2**32 - xx even though the file is small
          n = 1000
          n_bytes = n.to_bytes(8, "little")
          f.write(n_bytes)
  
label_desc: Use image node_id 1 for calling a global function with example usage: create_payload() without return types