/span><span class="identifier">instream</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">utf8string</span> <span class="special">&amp;</span><span class="identifier">contentType</span><span class="special">);</span>

    <span class="comment">/// Set the stream through which the message body could be read</span>
    <span class="keyword">void</span> <span class="identifier">set_instream</span><span class="special">(</span><span class="keyword">const</span> <sp