refore this method requires OAuth2 authentication.

API documentation: https://freesound.org/docs/api/resources_apiv2.html#id66</pre></div> </article> </li>  <li> <article class="definition function callable" id="FUNCTION FREESOUND:COMBINED-SEARCH"> <header> <span class="visibility">EXTERNAL</span> <span class="type">FUNCTION</span> <h4 class="name"> <a href="#FUNCTION%20FREESOUND%3ACOMBINED-SEARCH">COMBINED-SEARCH</a> </h4> <ul class="qualifiers"></ul> <ul class="arguments">  <li class="argument lambda-lis