al">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="variables_map.html#id-1_3_31_9_11_1_1_4_4_2-bb"><span class="identifier">clear</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="variables_map.html#id-1_3_31_9_11_1_1_4_4_3-bb"><span class="identifier">notify</span></a><span class="special">(</span><span class="speci