code: def humanize_timedelta_msecs(
      delta_msecs: Optional[Union[int, float]]
  ) -> Optional[str]:
      if delta_msecs is None:
          return None
      return naturaldelta_msec(delta_msecs)
  
file_path: hail/hail/python/hailtop/utils/time.py
imports: import time
  from typing import Optional, overload, Union
  import datetime
  import dateutil.parser
  from ..humanizex import naturaldelta_msec
label_desc: Use image node_id 6 for calling a global function with example usage: humanize_timedelta_msecs(delta_msecs) and returns: naturaldelta_msec, None