Checks whether the file system entity with this path exists. Returns
a <code>Future&lt;bool&gt;</code> that completes with the result. <a href="dart-io/FileSystemEntity/exists.html">[...]</a>
                  <div class="features">inherited</div>
</dd>
        <dt id="existsSync" class="callable inherited">
          <span class="name"><a href="dart-io/FileSystemEntity/existsSync.html">existsSync</a></span><span class="signature">(<wbr>)
            <span class="returntype parameter">&#8594; <a href="dart-