code: def launch_svc_event_handler(self, service):
          
          service.get_event_handlers(self.hosts, self.daemon.macromodulations,
                                     self.daemon.timeperiods, ext_cmd=True)
docs: Launch event handler for a service
          Format of the line that triggers function call::
  
          LAUNCH_SVC_EVENT_HANDLER;<host_name>;<service_description>
  
          :param service: service to execute the event handler
          :type service: alignak.objects.service.Service
          :return: None