<?xml version='1.0' encoding='UTF-8'?>
<rougail version="0.10">
  <variables>
    <variable name="my_var" type="string"/>
  </variables>
  <constraints>
    <fill name="calc_multi_condition">
      <param>non</param>
      <target>extra.my_var</target>
    </fill>
  </constraints>
</rougail>
