/**
 * A map that which only holds objects for a specified duration.
 *
 * @public
 */
export default class TimeMap {
    /**
     * @param {number} duration - The time to live, in milliseconds.
     */
    constructor(duration: number);
    /**
     * Returns true, if the map contains the item; otherwise false.
     *
     * @public
     * @param {string} key
     * @returns {boolean}
     */
    public has(key: string): boolean;
    /**
     * Puts an item into the map.
     *
     * @public
     * @param {string} key
     * @param {*} value
     */
    public put(key: string, value: any): void;
    /**
     * Puts an item into the map.
     *
     * @public
     * @param {string} key
     * @param {*} value
     */
    public set(key: string, value: any): void;
    /**
     * Gets an item from the map, returning a null value if the no item
     * for the given key exists.
     *
     * @public
     * @param {string} key
     * @returns {*|null}
     */
    public get(key: string): any | null;
    /**
     * Removes an item from the map.
     *
     * @public
     * @param {string} key
     */
    public remove(key: string): void;
    /**
     * Removes an item from the map.
     *
     * @public
     * @param {string} key
     */
    public delete(key: string): void;
    /**
     * Returns a string representation.
     *
     * @public
     * @returns {string}
     */
    public toString(): string;
    #private;
}