src/xmlsec/test/data/transform/enveloped1/in.xml
<?xml version="1.0"?>
<a xmlns="http://example.com/NS">
<b foo="22"/>
<ds:Signature xmlns:ds='http://www.w3.org/2000/09/xmldsig#'>
<ds:Reference URI="">
<ds:Transforms>
<ds:Transform Algorithm='http://www.w3.org/2000/09/xmldsig#enveloped-signature'/>
</ds:Transforms>
</ds:Reference>
</ds:Signature> <!-- a comment -->
</a>