import { Collection } from "@tsplus/stdlib/collections/Collection/definition";
import { Equals } from "@tsplus/stdlib/structure/Equals";
import { MutableHashMap } from "@tsplus/stdlib/collections/mutable/MutableHashMap/definition";
import { Hash } from "@tsplus/stdlib/structure/Hash";
/**
 * @tsplus type MutableHashSet
 * @tsplus companion MutableHashSet.Ops
 */
export declare class MutableHashSet<A> implements Collection<A>, Equals {
    private backingMap;
    constructor();
    [Hash.sym](): number;
    [Equals.sym](that: unknown): boolean;
    get size(): number;
    isEmpty(): boolean;
    contains(value: A): boolean;
    add(value: A): boolean;
    remove(value: A): boolean;
    [Symbol.iterator](): Iterator<A>;
}
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