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<payloadFactory>
<payloadFactory media-type="xml">
     <format>
  
        <m:checkpriceresponse xmlns:m="http://services.samples/xsd">
      
        <m:code>$1</m:code>
  
            <m:price>$2</m:price>
           </m:checkpriceresponse>
  
   </format>
      <args>
           <arg expression="//m0:symbol" xmlns:m0="http://services.samples/xsd">            <arg expression="//m0:lastsymbol"/>
    <arg xmlns:m0="http://services.samples/xsd" expression="//m0:last"/>
      </arg></arg></args>
</payloadFactory>