White Mesa to3, round4 GroupI, echoVoid

from http://www.whitemesa.com/interop/results/r4/wsdl-xsd/asp12.htm

echoVoid()
[Request Message]

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://www.w3.org/2002/06/soap-envelope">
<SOAP-ENV:Body>
<echoVoid xmlns="http://soapinterop.org/" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>



[Response Message]

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2002/06/soap-envelope"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<echoVoidResponse xmlns="http://soapinterop.org/" />
</soap:Body>
</soap:Envelope>