ref="#val-task_progress" class="anchor"></a><code><span><span class="keyword">val</span> task_progress : <span><span class="label">f</span>:<span>(<span>unit <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'a</span>)</span> <span class="arrow">&#45;&gt;</span></span> <span><span>(<span><span class="xref-unresolved">F</span>.formatter <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'b</span> <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arro