cket-class.html">SecureSocket</a></span> <span class="parameter-name">orElse</span>()</span> })
            <span class="returntype parameter">&#8594; <a href="dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="dart-io/SecureSocket-class.html">SecureSocket</a></span>&gt;</span></span>
          </span>
                  </dt>
        <dd class="inherited">
          Finds the single element in this stream matching <code>test</code>. <a href="dart-a