</ul> <ul class="arguments">  <li class="argument lambda-list-keyword">&amp;OPTIONAL</li>    <li class="argument">CLIENT-ID</li>  </ul>  <a class="source-link" href="file:///mnt/c/Users/trocado/OneDrive/Documents/Lisp/freesound/freesound.lisp#30:0">Source</a>  </header> <div class="docstring"><pre>As the first step of OAuth2 authentication, open the default browser on a Freesound page, where users are prompted to log in and asked to give permission for the application. The url is also printed to standard ou