PersisterOrUndefined<span class="operator">></span></span></span><span class="punctuation">(</span>
  store<span class="operator">:</span> <span class="keyword">undefined</span> <span class="operator">|</span> <span class="type"><a href="/api/persisters/type-aliases/mergeable/persistedstore/">PersistedStore</a></span><span class="operator">&lt;</span>Persist<span class="operator">></span><span class="punctuation">,</span>
  <span class="function-variable">create</span><span class="operator">:</span> <span c