 <code>SliceCallback</code> type describes a function that takes a <a href="/api/indexes/type-aliases/concept/slice/"><code>Slice</code></a>&#x27;s <a href="/api/common/type-aliases/identity/id/"><code>Id</code></a> and a callback to loop over each <a href="/api/store/type-aliases/store/row/"><code>Row</code></a> within it.</p><pre><code><span class="punctuation">(</span>
  sliceId<span class="operator">:</span> <span class="type"><a href="/api/common/type-aliases/identity/id/">Id</a></span><span class="pun