<?xml version='1.0' encoding='UTF-8'?>
<rougail version="0.10">
  <variables>
    <family name="leader" description="leader" leadership="True">
      <variable name="leader" multi="True">
        <value>a</value>
        <value>b</value>
        <value>c</value>
      </variable>
      <variable name="follower1" type="number"/>
    </family>
  </variables>
  <constraints>
    <fill name="calc_val">
      <param type="index"/>
      <target>follower1</target>
    </fill>
  </constraints>
</rougail>