import { SearchJSItem } from '../types';
export declare class SearchHistory {
    /**
     * local storage
     *
     * @var {Storage} db
     */
    private db;
    /**
     * max items to store in history
     *
     * @var {number} maxItems
     */
    private maxItems;
    /**
     * local storage key
     *
     * @var {string} storageKey
     */
    private storageKey;
    constructor();
    /**
     * get list of items store in history
     *
     * @returns {Array<SearchJSItem> | undefined | null}
     */
    getList(): Array<SearchJSItem> | undefined | null;
    /**
     * clear items stored
     *
     * @returns {void}
     */
    clear(): void;
    /**
     * remove item stored
     *
     * @param {SearchJSItem} item
     * @returns {void}
     */
    remove(item: SearchJSItem): void;
    /**
     * add item to history
     *
     * @param {SearchJSItem} item
     * @returns {void}
     */
    add(item: SearchJSItem): void;
}