kotlin.collections.maxBy
maxBy
inline fun <T, R : Comparable<R>> Iterable<T>.maxBy( selector: (T) -> R ): T?
inline fun <T, R : Comparable<R>> Array<out T>.maxBy( selector: (T) -> R ): T?
inline fun <R : Comparable<R>> ByteArray.maxBy( selector: (Byte) -> R ): Byte?
inline fun <R : Comparable<R>> ShortArray.maxBy( selector: (Short) -> R ): Short?
inline fun <R : Comparable<R>> IntArray.maxBy(