message listChannelTypesResponse
parts 
response
element dto:listChannelTypesResponse
used by 
Operation listChannelTypes in PortType ChannelBusService
source 
<wsdl:message name="listChannelTypesResponse">
  <wsdl:part name="response" element="dto:listChannelTypesResponse"/>
</wsdl:message>

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