jvm/stdlib/kotlin/-boolean/index.html">Boolean</a> = true, delay: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html">Long</a> = 0, period: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html">Long</a>? = null, howOften: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html">Long</a>? = null, safe: <a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a> = false, endCallback: () -&gt; <a href="h