code: def promote_pathlike(filepath: None, /) -> None:
      """Return None for None."""
  
file_path: graphviz/graphviz/_tools.py
imports: import functools
  import inspect
  import itertools
  import logging
  import os
  import pathlib
  import typing
  import warnings
label_desc: Use image node_id 5 for calling a global function with example usage: promote_pathlike() without return types