code: def main(args):
      output_folder = args.val_pred_dir
      folds = [i for i in range(args.folds)]
  
      postprocessing_json = os.path.join(
          output_folder, "postprocessing.json"
      )
      cv_niftis_folder = os.path.join(output_folder, "cv_niftis_raw")
  
      if not os.path.isfile(postprocessing_json) or not os.path.isdir(
          cv_niftis_folder
      ):
          print("running missing postprocessing.")
          consolidate_folds(output_folder, folds=folds)
          assert os.path.isfile(postprocessing_json), (
              "Postprocessing json missing, expected: %s"
              % postprocessing_json
          )
          assert os.path.isdir(cv_niftis_folder), (
              "Folder with niftis from CV missing, expected: %s"
              % cv_niftis_folder
          )
  
file_path: PaddleSeg/contrib/MedicalSeg/nnunet/all_folds_eval.py
imports: import argparse
  import os
  import sys
  import json
  import shutil
  from typing import Tuple
  from nnunet.utils import aggregate_scores, determine_postprocessing
label_desc: Use image node_id 5 for calling a global function with example usage: main(args) without return types