                       <pre class="highlight swift"><code><span class="k">var</span> <span class="nv">chainKey</span><span class="p">:</span> <span class="kt">Data</span></code></pre>

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                    <code>
                    <a name="/s:14SignalProtocol14SenderChainKeyV9iteration05chainE0ACs6UInt32V_10Founda