al">&amp;&amp;</span> operand2<span class="special">,</span> <span class="identifier">Variant3</span><span class="special">&amp;&amp;</span> operand3<span class="special">,</span> <span class="special">...</span> other_operands<span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MultiVisitor<span class="special">,</span> <span class="keyword">typename</span> Variant1<span class="special">,</sp