maxOf
Platform and version requirements: JVM (1.4), JS (1.4), Native (1.4) 
inline fun <T> Sequence<T>.maxOf( selector: (T) -> Double ): Double
inline fun <T> Sequence<T>.maxOf( selector: (T) -> Float ): Float
Platform and version requirements: JVM (1.4), JS (1.4), Native (1.4) 
inline fun <T, R : Comparable<R>> Sequence<T>.maxOf( selector: (T) -> R ): R
Returns the largest value among all values produced by selector function applied to each element in the sequence.
Exceptions
 NoSuchElementException - 
if the sequence is empty.
The operation is terminal.
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Licensed under the Apache License, Version 2.0.
    https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/max-of.html