From the pysphere client

<SOAP-ENV:Envelope xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ZSI="http://www.zolera.com/schemas/ZSI/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <SOAP-ENV:Header>
    </SOAP-ENV:Header>
    <SOAP-ENV:Body xmlns:ns1="urn:vim25">
        <ns1:CloneVM_Task>
            <ns1:_this type="VirtualMachine">vm-REDACTED</ns1:_this>
            <ns1:folder type="Folder">group-REDACTED</ns1:folder>
            <ns1:name>stuff</ns1:name>
            <ns1:spec>
                <ns1:location>
                    <ns1:datastore type="Datastore">REDACTED</ns1:datastore>
                    <ns1:pool type="ResourcePool">REDACTED</ns1:pool>
                    <ns1:host type="HostSystem">REDACTED</ns1:host>
                </ns1:location>
                <ns1:template>false</ns1:template>
                <ns1:powerOn>true</ns1:powerOn>
            </ns1:spec>
        </ns1:CloneVM_Task>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>