iv class=""><span class="inline-flex"><div><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-illegal-state-exception/index.html"><span>Illegal</span><wbr><span>State</span><wbr><span><span>Exception</span></span></a></div></span></div><div><div class="title"><p class="paragraph">if called on a container with no present value.</p></div></div></div></div></div><hr><div class="symbol monospace"><span class="token keyword">val </span><a href="value.html">value</a><span class="token operator">: </sp