class="op">(</span>provider <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>provider</dt>
<dd><p>Web service provider.</p></dd>

</dl></div>
    <div id="value">
    <h2>Value</h2>
    

<p>API key string or a list of provider:key pairs.</p>
    </div>
    <div id="see-also">
    <h2>See also</h2>
    <div class="dont-index"><p><a href="APIKeys.html">APIKeys</a></p>
<p><a href="s