n class="special">&lt;</span><span class="identifier">OtherValue</span><span class="special">*,</span><span class="identifier">Value</span><span class="special">*&gt;</span>
          <span class="special">,</span> <span class="identifier">enabler</span>
        <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">=</span> <span class="identifier">enabler</span><span class="special">()</span>
    <span class="special">)</span>
      <span class="special">:</span> <sp