code: def delay_host_notification(self, host, notification_time):
          
          host.first_notification_delay = notification_time
          self.send_an_element(host.get_update_status_brok())
docs: Modify host first notification delay
          Format of the line that triggers function call::
  
          DELAY_HOST_NOTIFICATION;<host_name>;<notification_time>
  
          :param host: host to edit
          :type host: alignak.objects.host.Host
          :param notification_time: new value to set
          :type notification_time:
          :return: None