n>
        <span class="keyword">typedef</span> <span class="identifier">__unspecified_type__</span> <span class="identifier">pointer</span><span class="special">;</span>
        <span class="keyword">typedef</span> <span class="identifier">__unspecified_type__</span> <span class="identifier">reference</span><span class="special">;</span>

        <span class="identifier">unique</span><span class="special">()</span> <span class="special">{}</span>
        <span class="keyword">explicit</span> <span class="i