atest_prune"><a href="#val-set_latest_prune" class="anchor"></a><code><span><span class="keyword">val</span> set_latest_prune : <span><a href="../LatestPrune/index.html#type-t">LatestPrune.t</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-set_first_idx_of_null"><a href="#val-set_first_idx_of_null" class="anchor"></a><code><