ass="keyword">typename</span> T1<span class="special">,</span> <span class="keyword">typename</span> T2<span class="special">,</span> <span class="special">...</span><span class="special">,</span> <span class="keyword">typename</span> TN<span class="special">&gt;</span> 
    <span class="keyword">class</span> <a class="link" href="../boost/functionN.html" title="Class template functionN">functionN</a><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span