or"></a><code><span>| </span><span><span class="constructor">Aunsubscribed_observer</span></span></code><div class="def-doc"><span class="comment-delim">(*</span><p>denotes an object unsubscribed from observers of a notification center</p><span class="comment-delim">*)</span></div></li><li id="type-t.Awont_leak" class="def variant constructor anchored"><a href="#type-t.Awont_leak" class="anchor"></a><code><span>| </span><span><span class="constructor">Awont_leak</span></span></code><div class="def-doc"><spa