span> <span class="keyword">type</span> <span class="keyword">of</span> <span class="keyword">struct</span> <span class="keyword">include</span> <span class="xref-unresolved">Filename_unix</span> <span class="keyword">end</span></span></code></summary><div class="odoc-spec"><div class="spec value anchored" id="val-realpath"><a href="#val-realpath" class="anchor"></a><code><span><span class="keyword">val</span> realpath : <span>string <span class="arrow">&#45;&gt;</span></span> string</span></code></div></di