Sophos FW filter on SecurityPolicy

Hello, 

I'm trying to get the SecurityPolicy object by using Filer on a Get request.

My version is v17.5, and my request is:

<Get>
        <SecurityPolicy >
            
                =">test_rule</key>
            
        </SecurityPolicy >
    

But the XML that returns is without SourceZones, DestinationZones, etc... and I have them, for sure. how can I get the full object by Name?

Here is the Response :

<Response APIVersion="1702.1" IPS_CAT_VER="1">
<Login>
<status>Authentication Successful</status>
</Login>
<SecurityPolicy transactionid="">
<Name>test_rule</Name>
<Description/>
<IPFamily>IPv4</IPFamily>
<Status>Enable</Status>
<Position>After</Position>
<PolicyType>Network</PolicyType>
<After>
<Name>test_update</Name>
</After>
<Schedule>All The Time</Schedule>
<Action>Drop</Action>
<LogTraffic>Disable</LogTraffic>
<MatchIdentity>Disable</MatchIdentity>
</SecurityPolicy>
</Response>

Thanks