code: def suspend_zone(self, days, zone=None):
          
          if zone is None:
              zone_cmd = 'suspendall'
              relay_id = None
          else:
              if zone < 0 or zone > (len(self.relays) - 1):
                  return None
              else:
                  zone_cmd = 'suspend'
                  relay_id = self.relays[zone]['relay_id']
  
          # If days is 0 then remove suspension
          if days <= 0:
              time_cmd = 0
          else:
              # 1 day = 60 * 60 * 24 seconds = 86400
              time_cmd = time.mktime(time.localtime()) + (days * 86400)
  
          return set_zones(self._user_token, zone_cmd, relay_id, time_cmd)
docs: Suspend or unsuspend a zone or all zones for an amount of time.
  
          :param days: Number of days to suspend the zone(s)
          :type days: int
          :param zone: The zone to suspend. If no zone is specified then suspend
                       all zones
          :type zone: int or None
          :returns: The response from set_zones() or None if there was an error.
          :rtype: None or string