code: def _strip_filename(msg: str) -> str:
      """Strip the filename from a mypy message."""
      _, tail = os.path.splitdrive(msg)
      return tail.split(":", 1)[-1]
  
imports: import itertools
  import os
  import re
  import shutil
  import unittest
  from collections import defaultdict
  from threading import Lock
  from typing import Dict, IO, List, Optional
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TestCase
label_desc: Use image node_id 2 for calling a global function with example usage: _strip_filename(msg) and returns: tail