ator">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html">String</a><span class="token operator">?</span><span class="token operator"> = </span>null</div><h4 class="">Parameters</h4><div class="table"><div class="table-row" data-filterable-current=":kryptokrona-node:dokkaHtmlPartial/main" data-filterable-set=":kryptokrona-node:dokkaHtmlPartial/main"><div class="main-subrow keyValue "><div class=""><span class="inline-flex"><div><u><span>tail</span><wbr><span>Block</span