code: def main() -> None:
      parser = argparse.ArgumentParser(
          description="Format files with black.",
          fromfile_prefix_chars="@",
      )
      parser.add_argument(
          "--retries",
          default=3,
          type=int,
          help="times to retry timed out black",
      )
      parser.add_argument(
          "--timeout",
          default=90,
          type=int,
          help="seconds to wait for black",
      )
      parser.add_argument(
          "--verbose",
          action="store_true",
          help="verbose logging",
      )
      parser.add_argument(
          "filenames",
          nargs="+",
          help="paths to lint",
      )
      args = parser.parse_args()
  
      logging.basicConfig(
          format="<%(threadName)s:%(levelname)s> %(message)s",
          level=logging.NOTSET
          if args.verbose
          else logging.DEBUG
          if len(args.filenames) < 1000
          else logging.INFO,
          stream=sys.stderr,
      )
  
      with concurrent.futures.ThreadPoolExecutor(
          max_workers=os.cpu_count(),
          thread_name_prefix="Thread",
      ) as executor:
          futures = {
              executor.submit(
                  check_file, filename, args.retries, args.timeout
              ): filename
              for filename in args.filenames
          }
          for future in concurrent.futures.as_completed(futures):
              try:
                  for lint_message in future.result():
                      print(
                          json.dumps(lint_message._asdict()), flush=True
                      )
              except Exception:
                  logging.critical('Failed at "%s".', futures[future])
                  raise
  
file_path: torchrec/tools/lint/black_linter.py
imports: import argparse
  import concurrent.futures
  import json
  import logging
  import os
  import subprocess
  import sys
  import time
  from typing import BinaryIO, List
  from utils import as_posix, IS_WINDOWS, LintMessage, LintSeverity
label_desc: Use image node_id 4 for calling a global function with example usage: main() without return types