      
</dd>
        <dt id="open" class="callable">
          <span class="name"><a href="dart-io/File/open.html">open</a></span><span class="signature">(<wbr>{<span class="parameter" id="open-param-mode"><span class="type-annotation"><a href="dart-io/FileMode-class.html">FileMode</a></span> <span class="parameter-name">mode</span>: <span class="default-value">FileMode.read</span></span> })
            <span class="returntype parameter">&#8594; <a href="dart-async/Future-class.html">Future</a><span class="