"special">{</span>
<span class="keyword">public</span><span class="special">:</span>
    <span class="keyword">typedef</span> <span class="identifier">lib</span><span class="special">::</span><span class="identifier">shared_ptr</span><span class="special">&lt;</span><span class="identifier">message</span><span class="special">&gt;</span> <span class="identifier">ptr</span><span class="special">;</span>
    <span class="special">...</span>
    <span class="identifier">std</span><span class="special">::</span