<model>
  <env>
    <prop1>top-level-value1</prop1>
    <prop2>top-level-value2</prop2>
    <prop3>top-level-value3</prop3>
  </env>
 
  <xvms>
    <templates>
      <xvm name="xvm-template">
        <env>
          <prop2>xvm-template-value2</prop2>
    	  <prop3>xvm-template-value3</prop3>
        </env>
      </xvm>
    </templates>
    <xvm name="my-xvm" template="xvm-template">
      <env>
    	<prop3>my-xvm-value3</prop3>
      </env>
    </xvm>
  </xvms>
</modelmodel>