/**
 * Manage window.localStorage
 */
export declare class LocalStorageDB {
    /**
     * Set a key in window.localStorage
     * @param key
     * @param value
     */
    static set(key: any, value: any): void;
    /**
     * Get a key from window.localStorage, else return null
     * @param key
     */
    static get(key: any): any;
    /**
     * Get all keys
     */
    static getAll(): any[];
    /**
     * Remove a single item from window.localStorage
     * @param key
     */
    static remove(key: any): void;
    /**
     * Clear all keys from window.localStorage
     */
    static clearAll(): void;
    /**
     * Check if localStorage is supported
     */
    static checkifSupport(): boolean;
}