Expression of OX messages (XML)

OX messages can be expressed by XML. The following is an example.

<ox>
   <ox_data>
      <ox_serial> <int32> 0 </int32> </ox_serial>
      <cmo>  <cmo_string> 
                 <int32 for="length"> 5 </int32>
                 <string> "Hello" </string>
             </cmo_string>
      </cmo>
   </ox_data>
   <ox_command> 
       <ox_serial> <int32> 1 </int32> </ox_serial>
       <sm_popCMO/> 
   </ox_command>
</ox>