message listPrivilegesRequest
parts 
parameters
element browse:listPrivileges
used by 
Operation listPrivileges in PortType BrowseModelService
source 
<wsdl:message name="listPrivilegesRequest">
  <wsdl:part name="parameters" element="browse:listPrivileges"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy