code: def if_exist(outfold: str, files: List[str]):
      """
      Returns true if all given files exist in the given folder
      Args:
          outfold: folder path
          files: list of file names relative to outfold
      """
      if not os.path.exists(outfold):
          return False
      for file in files:
          if not os.path.exists(f"{outfold}/{file}"):
              return False
      return True
  
imports: import math
  import os
  from typing import Iterable, List
  import torch.nn
label_desc: Use image node_id 1 for calling a global function with example usage: if_exist(outfold, files) and returns: True, False, False