span class="token operator">: </span><a href="../-double-list/index.html">DoubleList</a></span></span><span class="token punctuation">)</span><span class="clearfix"><span class="floating-right">(<a href="https://github.com/mhss1/kubit/blob/main/kubit/src/commonMain/kotlin/kubit/collections/list/DoubleList.kt#L1056">source</a>)</span></span></div><div class="symbol monospace"><span class="token keyword">inline operator </span><span class="token keyword">fun </span><a href="plus-assign.html"><span class="toke