def not_found_xml(item):
    """
    Return XML representation of CLB item not found.
    """
    return (
        '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><itemNotFound xmlns="http://docs.openstack.org/loadbalancers/api/v1.0" code="404"><message>{0} not found</message></itemNotFound>'
        .format(item), 404)
