6.12 WebSocket Streamed Request Policy Assertion

 <?xml version="1.0" encoding="utf-8"?>
 <wsdl:definitions
                   targetNamespace="http://tempuri.org/"
                   xmlns:tns="http://tempuri.org/" 
                   xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy" 
                   xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" 
                   xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
                   xmlns:mswsp="http://schemas.microsoft.com/soap/websocket/policy">
   <wsp:Policy wsu:Id="MyPolicy">
     <wsp:ExactlyOne>
       <wsp:All>
         <!-- omitted elements -->
         <mswsp:StreamedRequest/>
         <!-- omitted elements -->
       </wsp:All>
     </wsp:ExactlyOne>
   </wsp:Policy>
   <!-- omitted elements -->
   <wsdl:binding name="MyBinding" type="tns:MyPortType">
     <wsp:PolicyReference URI="#MyPolicy"></wsp:PolicyReference>
     <!-- omitted elements -->
   </wsdl:binding>
   <!-- omitted elements -->
 </wsdl:definitions>