="kt">ItemIdentifierType</span><span class="o">&gt;.</span><span class="kt"><a href="../Classes/CollectionViewDiffableDataSource.html#/s:19DiffableDataSources014CollectionViewaB6SourceC013SupplementaryE8Providera">SupplementaryViewProvider</a></span><span class="p">?</span></code></pre>

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                    </section>
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                </li>
                <li class="item">
                  <div>
                    <code>
