id="val-new_id" class="anchored"><a href="#val-new_id" class="anchor"></a><code><span><span class="keyword">val</span> new_id : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <span class="xref-unresolved">Base</span>.int</span></code></div><div class="spec-doc"><p>Returns a fresh, unused id.</p></div></div><div class="odoc-spec"><div class="spec value" id="val-forget" class="anchored"><a href="#val-forget" class="anchor"></a><code><span><span class="keyword">val</span> forget : <s