>{</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">MapConfig</span><span class="special">::</span><span class="identifier">key_type</span>                                         <a name="boost.interprocess.flat_map_index_aux.key_type"></a><span class="identifier">key_type</span><span class="special">;</span>            
  <span class="keyword">typedef</span> <span class="identifier">MapConfig</span><span class="special">::</span><span class="id