n>
        <span class="k">let</span> <span class="nv">token</span> <span class="o">=</span> <span class="kt">Keychain</span><span class="o">.</span><span class="nf">string</span><span class="p">(</span><span class="nv">key</span><span class="p">:</span> <span class="s">"OAuth"</span><span class="p">)</span>

        <span class="c1">// Attach it to the resource:</span>
        <span class="n">resource</span><span class="o">.</span><span class="nf">header</span><span class="p">(</span><span class="nv">key</