en operator">&lt;</span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html">Long</a><span class="token operator">&gt;</span><span class="clearfix"><span class="floating-right">(<a href="https://github.com/mhss1/kubit/blob/main/kubit/src/commonMain/kotlin/kubit/collections/list/LongList.kt#L898">source</a>)</span></span></div><p class="paragraph">Return a <a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-set/index.html">Set</a> of all elements. The returne