et" class="anchor"></a><code><span><span class="keyword">val</span> offset : <span><a href="#type-partial">partial</a> <span class="arrow">&#45;&gt;</span></span> <span><span class="label">is_void</span>:bool <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-length"><a href="#val-length" class="anchor"></a><code><span><span class="keyword">val</span> length : <span><a href="#type-partial">partial</a> <