 class="kd">protocol</span> <span class="kt">Authenticator</span> <span class="p">:</span> <span class="kt">AnyObject</span></code></pre>

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            <p>Types adopting the <code>Authenticator</code> protocol can be used to authenticate <code>URLRequest</code>s with an
<code><a href="../Protocols/AuthenticationCredential.html">AuthenticationCredential</a></code> as well as refresh the <code><a href="../Protocols/AuthenticationCredential.html">AuthenticationCredent