code: def change_svc_check_command(self, service, check_command):
          
          service.modified_attributes |= DICT_MODATTR["MODATTR_CHECK_COMMAND"].value
          data = {"commands": self.commands, "call": check_command, "poller_tag": service.poller_tag}
          service.change_check_command(data)
          self.send_an_element(service.get_update_status_brok())
docs: Modify service check command
          Format of the line that triggers function call::
  
          CHANGE_SVC_CHECK_COMMAND;<host_name>;<service_description>;<check_command>
  
          :param service: service to modify check command
          :type service: alignak.objects.service.Service
          :param check_command: command line
          :type check_command:
          :return: None