egies, derive your class from
        <a class="link" href="../ref/boost__json__memory_resource.html" title="memory_resource"><code class="computeroutput"><span class="identifier">memory_resource</span></code></a>
        and implement the functions <code class="computeroutput"><span class="identifier">do_allocate</span></code>,
        <code class="computeroutput"><span class="identifier">do_deallocate</span></code>, and <code class="computeroutput"><span class="identifier">do_is_equal</span></code> as see