XML/JSON transformations

[Nate Reed]

One of the Synapse samples shows a SOAP service handling JSON requests.

My question is what is responsible for transforming the XML payload
into JSON?  This is a snippet from the definition:
 <inSequence>
                <log level="full"/>
                <xslt key="in_transform"/>
                <property name="messageType" scope="axis2" value="text/xml"/>
            </inSequence>

Does this "messageType"= "text/xml" property result in the JSON being
transformed into XML before the XSLT transform "in_transform" is
invoked?  Sorry, it's a little unclear to me what's going on here so
some clarification is appreciated.

Thanks,
Nate