message listMappedEntitiesRequest
parts 
parameters
element mapping:listMappedEntities
used by 
Operation listMappedEntities in PortType MappingService
source 
<wsdl:message name="listMappedEntitiesRequest">
  <wsdl:part name="parameters" element="mapping:listMappedEntities"/>
</wsdl:message>

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