lib/metadata_services/list_metadata_request.xml
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:met="http://soap.sforce.com/2006/04/metadata">
<soapenv:Header>
<met:SessionHeader>
<met:sessionId>%s</met:sessionId>
</met:SessionHeader>
</soapenv:Header>
<soapenv:Body>
<met:listMetadata>
<met:queries>
%s
</met:queries>
<met:asOfVersion>%s</met:asOfVersion>
</met:listMetadata>
</soapenv:Body>
</soapenv:Envelope>