code: def mkdir_allow_fallback(dir_name: StrPath) -> StrPath:
      """Create `dir_name`, removing invalid path characters if necessary.
  
      Returns:
          The path to the created directory, which may not be the original path.
      """
      for new_name in path_fallbacks(dir_name):
          try:
              os.makedirs(new_name, exist_ok=True)
              if Path(new_name) != Path(dir_name):
                  logger.warning(
                      f"Creating '{new_name}' instead of '{dir_name}'"
                  )
              return (
                  Path(new_name)
                  if isinstance(dir_name, Path)
                  else new_name
              )
          except (ValueError, NotADirectoryError):
              pass
          except OSError as e:
              if e.errno != 22:
                  raise
  
      raise OSError(f"Unable to create directory '{dir_name}'")
  
imports: import contextlib
  import ctypes
  import errno
  import logging
  import os
  import platform
  import re
  import shutil
  import tempfile
  import threading
  from pathlib import Path
  from typing import IO, Any, BinaryIO, Generator, Optional
  from wandb.sdk.lib.paths import StrPath
label_desc: Use image node_id 3 for calling a global function with example usage: mkdir_allow_fallback(dir_name) and returns: unknown