docs: def to_timedelta(value, strict=True):
      """
      converts duration string to timedelta
  
      strict=True (by default) raises StrictnessError if either hours,
      minutes or seconds in duration string exceed allowed values
      """
      if isinstance(value, int):
          return timedelta(seconds=value)  # assuming it's seconds
      elif isinstance(value, timedelta):
          return value
      elif isinstance(value, str):
          hours, minutes, seconds = _parse(value, strict)
      elif isinstance(value, tuple):
          check_tuple(value, strict)
          hours, minutes, seconds = value
      else:
          raise TypeError(
              'Value %s (type %s) not supported' % (
                  value, type(value).__name__
              )
          )
      return timedelta(hours=hours, minutes=minutes, seconds=seconds)