n server rejects a credential, we need to check to make sure we haven&rsquo;t refreshed the
credential while the request was in flight. If it has already refreshed, then we don&rsquo;t need to trigger an
additional refresh. If it hasn&rsquo;t refreshed, then we need to refresh.</p>

<p>Now that it is understood how the result of this method is used in the refresh lifecyle, let&rsquo;s walk through how
to implement it. You should return <code>true</code> in this method if the <code>URLRequest</code> is authe