ef record field anchored"><a href="#type-block.size" class="anchor"></a><code><span>size : int;</span></code></li><li id="type-block.block_id" class="def record field anchored"><a href="#type-block.block_id" class="anchor"></a><code><span>block_id : int;</span></code></li><li id="type-block.active" class="def record field anchored"><a href="#type-block.active" class="anchor"></a><code><span><span class="keyword">mutable</span> active : <span><a href="#type-t">t</a> option</span>;</span></code></li><li id="t