 writing.</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#ifndef IPC_DOXYGEN_ONLY</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="keyword">static_assert</span>(<span class="keyword">false</span>, <span class="stringliteral">&quot;As of this writing this is a documentation-only \&quot;header\&quot; &quot;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><sp