 punctuation">)</span><span class="token operator"> -&gt; </span><a href="get-or-create.html">T</a></span></span><span class="token punctuation">)</span><span class="token operator">: </span><a href="get-or-create.html">T</a></div><div class="brief "><p class="paragraph">Returns the value for the specified <a href="get-or-create.html">key</a>. If the <a href="get-or-create.html">key</a> is not found, the <a href="get-or-create.html">init</a> function is called, then its result is mapped to the <a href="get-