o">-&gt;</span> <span class="kt">Single</span><span class="o">&lt;</span><span class="kt">Descriptor</span><span class="o">&gt;</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p><code>Single</code> which emits <code>next</code> with given descriptor when value is ready to read.</p>
                      </div>
                      <div class="slightly-smaller">
               