toUByte
Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0) 
fun toUByte(): UByte
Converts this UInt value to UByte.
If this value is less than or equals to UByte.MAX_VALUE, the resulting UByte value represents the same numerical value as this UInt.
The resulting UByte value is represented by the least significant 8 bits of this UInt value.
    © 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
    https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-u-int/to-u-byte.html