pan class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ContextT<span class="special">&gt;</span> 
    result<span class="special">&lt;</span> this_type<span class="special">(</span><span class="identifier">ContextT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="attribute_termin