ate</span><span class="special">&lt;</span><span class="keyword">typename</span> Seq<span class="special">,</span> <span class="keyword">typename</span> N<span class="special">&gt;</span> 
  <span class="keyword">typename</span> <span class="identifier">fusion</span><span class="special">::</span><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span><span class="special">&lt;</span> <span class="identifier">Seq</span><span class="special">,</span> <span cl