code: def get_revocation_time(self):
          
          if self.revoked is False:
              return
  
          if timezone.is_aware(self.revoked_date):
              # convert datetime object to UTC and make it naive
              return timezone.make_naive(self.revoked_date, pytz.utc)
  
          return self.revoked_date
docs: Get the revocation time as naive datetime.
  
          Note that this method is only used by cryptography>=2.4.