code: def main(args):
      if args.mode == "pgl2dgl":
          model_pgl2dgl(args)
      elif args.mode == "dgl2pgl":
          model_dgl2pgl(args)
      else:
          raise (
              "The mode is not correct, just could be pgl2dgl/dgl2pgl."
          )
  
file_path: PGL/examples/AITISA/kg/convert_tools.py
imports: import os
  import argparse
  import logging
  import numpy
  import paddle
  import torch
label_desc: Use image node_id 3 for calling a global function with example usage: main(args) without return types