)</span></code>:
      </p>
<pre class="programlisting"><span class="comment">/** Send a message to a stream synchronously.

    @param stream The stream to write to. This type must support
    the @b SyncWriteStream concept.

    @param m The message to send. The Body type must support
    the @b BodyWriter concept.
*/</span>
<span class="keyword">template</span><span class="special">&lt;</span>
    <span class="keyword">class</span> <span class="identifier">SyncWriteStream</span><span class="special">,</s