dentifier">root</span><span class="special">.</span><span class="identifier">name</span>  <span class="special">=</span> <span class="string">"root"</span><span class="special">;</span>
   <span class="identifier">root</span><span class="special">.</span><span class="identifier">value</span> <span class="special">=</span> <span class="string">"root_value"</span><span class="special">;</span>
   <span class="identifier">root</span><span class="special">.</span><span class="identifier">children_</span><span c