n> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">json</span><span class="special">;</span>

<span class="comment">// The null parser discards all the data</span>
<span class="keyword">class</span> <span class="identifier">null_parser</span>
<span class="special">{</span>
    <span class="keyword">struct</span> <span class="identifier">handler</span>
    <span class="special">{</span>
        <span class="keyword">constexpr</span> <span class="keyword">static</s