fun <T> Sequence<T>.onEach(action: (T) -> Unit): Sequence<T>
Platform and version requirements: Kotlin 1.1
Returns a sequence which performs the given action on each element of the original sequence as they pass through it.
The operation is intermediate and stateless.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/on-each.html