export class HashSet<T> {
    constructor({
                    keyHashFunction,
                    keyEqualityFunction,
                    capacity
                }: {
        keyHashFunction: (k: T) => number,
        keyEqualityFunction: (a: T, b: T) => boolean,
        capacity?: number
    })

    constructor()

    get size(): number

    add(value: T): this

    has(value: T): boolean

    get(value: T): T | undefined

    delete(value: T): boolean

    clear(): void

    forEach(callback: (value: T, key: T, set: this) => any, thisArg?: any): void

    [Symbol.iterator](): IterableIterator<T>

    values(): IterableIterator<T>

    keys(): IterableIterator<T>
}