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addAll

kotlin-stdlib / kotlin.collections / ArrayDeque / addAll
Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0) 
fun addAll(elements: Collection<E>): Boolean
fun addAll(index: Int, elements: Collection<E>): Boolean

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-array-deque/add-all.html