>Empty method annotation.</p></dd></dl><dl><dt class="spec value" id="val-is_empty"><a href="#val-is_empty" class="anchor"></a><code><span class="keyword">val</span> is_empty : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> bool</code></dt><dd><p>Check if the method annotation is empty.</p></dd></dl><dl><dt class="spec value" id="val-pp"><a href="#val-pp" class="anchor"></a><code><span class="keyword">val</span> pp : string <span>&#45;&gt;</span> <a href="../index.html#module-F">F</a>.formatter <s