special">&gt;</span> <span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">model</span><span class="special">::</span><span class="identifier">multi_linestring</span>
      <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">Container</span><span class="special">&lt;</span> <span class="identifier">LineString</span><span class="special">,</span> <span cl