lass="link" href="when_any__produce_first_success.html" title="when_any, produce first success">when_any,
        produce first success</a>
</h4></div></div></div>
<p>
          One scenario for <span class="quote">&#8220;<span class="quote">when_any</span>&#8221;</span> functionality is when we're redundantly
          contacting some number of possibly-unreliable web services. Not only might
          they be slow &#8212; any one of them might produce a failure rather than the desired
          result.
  