<?xml version='1.0' encoding='UTF-8'?>
<rougail version="0.10">
  <variables>
    <variable name="var1" multi="True">
      <value>no</value>
      <value>yes</value>
      <value>maybe</value>
    </variable>
    <variable name="var2" multi="True"/>
  </variables>
  <constraints>
    <fill name="calc_value">
      <param type="variable">var1</param>
      <target>var2</target>
    </fill>
  </constraints>
</rougail>