Expose node-soap client and a method to access the last request made with a service to allow debugging (required when needing assistance from the Google DFP API forums)

Author: serratedserenade

lib/DfpUser.js

@@ -82,7 +82,10 @@ DfpUser.prototype.getService = function (service, callback, version) {
 
       client.addSoapHeader(dfpUser.getSOAPHeader(), '', '', '');
 
-      var serviceInstance = {},
+      var serviceInstance = {
+        soapClient: client,
+        soapLastRequest: () => client.lastRequest
+      },
         interfacePort     = client[service][service + 'InterfacePort'],
         invokeMethod      = function (method) {
           return function () {