code: def validate_files(file_list):
      for file in file_list:
          if not os.path.isfile(file):
              print(f"Error: {file} is not existent")
  
file_path: H2O/h2o_flexgen/benchmark/third_party/DeepSpeed/deepspeed/checkpoint/reshape_utils.py
imports: import os
  import torch
  from collections import OrderedDict
  from .constants import ZERO_FILE_PREFIX, FP16_ZERO_FILE_PREFIX, BF16_ZERO_FILE_PREFIX
label_desc: Use image node_id 3 for calling a global function with example usage: validate_files(file_list) without return types