[web2py] SOAP XML Return Objects

[devrunner]

I wanted to return a xml similar to this :
<Trade>
  <TradeNo></TradeNo>
  <Volume></Volume>
  <Description></Description>
  <etc...>
<Trade>

using a SOAP WebService. The example i'm seeing is just for primitive 
datatypes, I wanted to have a user defined object. Is this possible? Thanks.

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