code: def epoch(self):
          
          epoch_sec = pytz.utc.localize(datetime.utcfromtimestamp(0))
          now_sec = pytz.utc.normalize(self._dt)
          delta_sec = now_sec - epoch_sec
          return get_total_second(delta_sec)
docs: Returns the total seconds since epoch associated with
          the Delorean object.
  
          .. testsetup::
  
              from datetime import datetime
              from delorean import Delorean
  
          .. doctest::
  
              >>> d = Delorean(datetime(2015, 1, 1), timezone='US/Pacific')
              >>> d.epoch
              1420099200.0