def change_host_event_handler(self, host, event_handler_command):
        """Modify host event handler
        Format of the line that triggers function call::

        CHANGE_HOST_EVENT_HANDLER;<host_name>;<event_handler_command>

        :param host: host to modify event handler
        :type host: alignak.objects.host.Host
        :param event_handler_command: event handler command line
        :type event_handler_command:
        :return: None
        """
        host.modified_attributes |= DICT_MODATTR["MODATTR_EVENT_HANDLER_COMMAND"].value
        data = {"commands": self.commands, "call": event_handler_command}
        host.change_event_handler(data)
        self.send_an_element(host.get_update_status_brok())
Modify host event handler
        Format of the line that triggers function call::

        CHANGE_HOST_EVENT_HANDLER;<host_name>;<event_handler_command>

        :param host: host to modify event handler
        :type host: alignak.objects.host.Host
        :param event_handler_command: event handler command line
        :type event_handler_command:
        :return: None