message getChartRequest
parts 
getChartDoc
element base:getChartRequest
used by 
Operation getChart in PortType EventCollectorReportService
source  
<wsdl:message name="getChartRequest">
  <wsdl:part name="getChartDoc" element="base:getChartRequest"/>
</wsdl:message>

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