docs: def get(self):
          """ Get the current timer value in seconds.
  
          Returns: the elapsed time in seconds since the timer started or until the timer was stopped
          """
          now = datetime.now()
          if self._start_time:
              if self._stop_time:
                  return (self._stop_time - self._start_time).total_seconds()
              return (now - self._start_time).total_seconds()
          return 0.