export declare class HashTable {
    private readonly _table;
    private _size;
    constructor();
    _hash(key: string): number;
    add(key: string, value: any): void;
    get(key: string): any;
    set(key: string, value: any): void;
    exists(key: any): boolean;
    remove(key: string): void;
    list(): any[];
    count(): number;
}