ype">MapArrayKVIterator</span>&lt;<span class="type">T</span>&gt;</code></h3><div class="doc"><p>Returns an iterator over the keys of this instance and the data contained within the <code><a href="../../nb/ds/NamedData.html#NamedData">NamedData</a>&lt;T&gt;</code> mapped to it.</p></div></div><div class="field "><a name="keys"></a><h3 class="anchor"><code><span class="label label-static">static</span><span class="label label-inline">inline</span><a href="#keys"><span class="identifier">keys</span></a>(<span