code: def main():
      parser = argparse.ArgumentParser(
          description="Upgrade SSD version"
      )
      parser.add_argument("in_file", help="input checkpoint file")
      parser.add_argument("out_file", help="output checkpoint file")
  
      args = parser.parse_args()
      convert(args.in_file, args.out_file)
  
file_path: mmdetection/tools/model_converters/upgrade_ssd_version.py
imports: import argparse
  import tempfile
  from collections import OrderedDict
  import torch
  from mmengine import Config
  from mmengine.utils import digit_version
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types