Getting "Cannot construct an instance of com.google.ads.api.services.datax.offlinedataupload.UploadMetadata because it is abstract" error. Thoughts?

[Steve Wilhelm]

I am attempting to upload offline data using the Python suds based API 

OfflineDataUploadService (v201708)

We are getting the following error:

suds.WebFault: Server raised fault: 'Cannot construct an instance of com.google.ads.api.services.datax.offlinedataupload.UploadMetadata because it is abstract.  You are probably missing an @Uses annotation while invoking public abstract com.google.ads.api.services.datax.offlinedataupload.OfflineDataUploadReturnValue com.google.ads.api.services.datax.offlinedataupload.OfflineDataUploadService.mutate(java.util.List) throws com.google.ads.api.services.common.error.ApiException with params [[com.google.ads.api.services.datax.offlinedataupload.v201708.jaxbgen.OfflineDataUploadOperation@464070a1]].'

The Python suds code is attached. Below is the XML.

Any suggestions or examples of using the OfflineDataUploadService would be welcome.

- Steve W.

<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope xmlns:tns="https://adwords.google.com/api/adwords/rm/v201708" xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="https://adwords.google.com/api/adwords/cm/v201708" xmlns:ns2="https://adwords.google.com/api/adwords/rm/v201708" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">

   <SOAP-ENV:Header>

      <tns:RequestHeader>

         <tns:clientCustomerId xmlns:tns="https://adwords.google.com/api/adwords/cm/v201708">***-***-****</tns:clientCustomerId>

         <tns:developerToken xmlns:tns="https://adwords.google.com/api/adwords/cm/v201708">*********************</tns:developerToken>

         <tns:userAgent xmlns:tns="https://adwords.google.com/api/adwords/cm/v201708">Euclid AdAdmin (AwApi-Python, googleads/8.0.0, Python/2.7.10)</tns:userAgent>

         <tns:validateOnly xmlns:tns="https://adwords.google.com/api/adwords/cm/v201708">false</tns:validateOnly>

         <tns:partialFailure xmlns:tns="https://adwords.google.com/api/adwords/cm/v201708">false</tns:partialFailure>

      </tns:RequestHeader>

   </SOAP-ENV:Header>

   <ns0:Body>

      <ns2:mutate>

         <ns2:operations>

            <ns1:operator>ADD</ns1:operator>

            <ns2:operand>

               <ns2:uploadId>123</ns2:uploadId>

               <ns2:externalUploadId>456</ns2:externalUploadId>

               <ns2:uploadType>STORE_SALES_UPLOAD_THIRD_PARTY</ns2:uploadType>

               <ns2:uploadStatus/>

               <ns2:uploadMetadata xsi:type="ns2:ThirdPartyUploadMetadata">

                  <ns2:loyaltyRate>0.0</ns2:loyaltyRate>

                  <ns2:transactionUploadRate>0.0</ns2:transactionUploadRate>

                  <ns2:advertiserUploadTime>01:05:00</ns2:advertiserUploadTime>

                  <ns2:validTransactionRate>0.0</ns2:validTransactionRate>

                  <ns2:partnerMatchRate>0.0</ns2:partnerMatchRate>

                  <ns2:partnerUploadRate>0.0</ns2:partnerUploadRate>

                  <ns2:bridgeMapVersionId>bridgeId123</ns2:bridgeMapVersionId>

                  <ns2:partnerId>partnerId123</ns2:partnerId>

               </ns2:uploadMetadata>

               <ns2:offlineDataList>

                  <ns2:userIdentifiers>

                     <ns2:userIdentifierType>EXTERNAL_USER_ID</ns2:userIdentifierType>

                     <ns2:value>id123</ns2:value>

                  </ns2:userIdentifiers>

                  <ns2:transactionTime>2017-10-31 17:30:00-08:00</ns2:transactionTime>

                  <ns2:transactionAmount>0</ns2:transactionAmount>

                  <ns2:conversionName></ns2:conversionName>

               </ns2:offlineDataList>

               <ns2:failureReason/>

            </ns2:operand>

         </ns2:operations>

      </ns2:mutate>

   </ns0:Body>

</SOAP-ENV:Envelope>