         <span class="name "><a href="dart-io/FileMode/append-constant.html">append</a></span>
          <span class="signature">&#8594; const <a href="dart-io/FileMode-class.html">FileMode</a></span>
                  </dt>
        <dd>
          Mode for opening a file for reading and writing to the
end of it. The file is created if it does not already exist.
                  
  <div>
            <span class="signature"><code>const FileMode._internal(2)</code></span>
          </div>
        </dd>
      