<rougail>
    <variables>
        <family name="test">	
            <variable name="delay" type="number" description="délai en minutes avant lancement">
                <value>0</value>
            </variable>
            <variable name="calc_url" type="web_address" description="domain" hidden="True">
                <value>0</value>
            </variable>
        </family>
    </variables>
    <constraints>
        <fill name="calc_val" target="extra.test.calc_url">
            <param>http://localhost/</param>
        </fill>
    </constraints>
</rougail>