What is the XML rule for fascismile: re-format as string?

<rule>    <description>fascismile: re-format as string</description>    <conditions>        <and>            <if-class-name op="equal">User</if-class-name>            <if-op-attr name="faxNumber" op="changing"/>          </and>      </conditions>    <actions>        <do-reformat-op-attr name="faxNumber" notrace="true">            <arg-value type="string">                <token-xpath expression="$current-value/component[@name='faxNumber']"/>              </arg-value>          </do-reformat-op-attr>      </actions>  </rule>