" id="val-is_singleton_or_more"><a href="#val-is_singleton_or_more" class="anchor"></a><code><span class="keyword">val</span> is_singleton_or_more : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span><span>(<a href="index.html#type-key">key</a> * <span class="type-var">'a</span>)</span> <a href="../../../../../../../../IStdlib/IContainer/index.html#type-singleton_or_more">IStdlib.IContainer.singleton_or_more</a></span></code></dt><dt class="spec valu