code: def parse_human_timedelta(s: str):
      
      cal = parsedatetime.Calendar()
      dttm = dttm_from_timtuple(datetime.now().timetuple())
      d = cal.parse(s or '', dttm)[0]
      d = datetime(d.tm_year, d.tm_mon, d.tm_mday, d.tm_hour, d.tm_min, d.tm_sec)
      return d - dttm
docs: Returns ``datetime.datetime`` from natural language time deltas
  
      >>> parse_human_datetime('now') <= datetime.now()
      True