<?xml version="1.0" encoding="UTF-8"?>
<update>
    <pos>before</pos>
    <args>
        <arg>
            <type>Object</type>
            <var>s</var>
        </arg>
    </args>
    <code> 
        System.out.println("The argument is "+(String)s); 
    </code>
</update>
