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/*
 * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

package kotlin.collections

expect class HashSet : MutableSet {
    constructor()
    constructor(initialCapacity: Int)
    constructor(initialCapacity: Int, loadFactor: Float)
    constructor(elements: Collection)

    // From Set

    override val size: Int
    override fun isEmpty(): Boolean
    override fun contains(element: @UnsafeVariance E): Boolean
    override fun containsAll(elements: Collection<@UnsafeVariance E>): Boolean

    // From MutableSet

    override fun iterator(): MutableIterator
    override fun add(element: E): Boolean
    override fun remove(element: E): Boolean
    override fun addAll(elements: Collection): Boolean
    override fun removeAll(elements: Collection): Boolean
    override fun retainAll(elements: Collection): Boolean
    override fun clear()
}