export declare class BitSet {
    private bitsPerElement;
    private array;
    private length;
    private _size;
    constructor(bitsPerElement?: number);
    get [Symbol.toStringTag](): string;
    get size(): number;
    [Symbol.iterator](): IterableIterator<number>;
    values(): IterableIterator<number>;
    _dumpBinaryStrings(): string[];
    has(value: number): boolean;
    add(value: number): boolean;
    delete(value: number): boolean;
    clear(): void;
    clone(): BitSet;
    private getPosition;
    private getMask;
}