/** typed localStorage wrapper with `radar-*` namespaced keys */
declare class Storage {
    /** localStorage key for user ID */
    static get USER_ID(): string;
    /** localStorage key for device ID */
    static get DEVICE_ID(): string;
    /** localStorage key for install ID */
    static get INSTALL_ID(): string;
    /** localStorage key for session ID */
    static get SESSION_ID(): string;
    /** localStorage key for user description */
    static get DESCRIPTION(): string;
    /** localStorage key for user metadata */
    static get METADATA(): string;
    /** localStorage key for cached location */
    static get CACHED_LOCATION(): string;
    /** localStorage key for trip options */
    static get TRIP_OPTIONS(): string;
    /** localStorage key for product identifier */
    static get PRODUCT(): string;
    /** @internal get the underlying localStorage instance */
    private static getStorage;
    /**
     * store a string value in localStorage
     * @param key - the storage key
     * @param value - the string value to store
     */
    static setItem(key: string, value: string): void;
    /**
     * retrieve a string value from localStorage
     * @param key - the storage key
     * @returns the stored value, or null if not found
     */
    static getItem(key: string): string | null;
    /**
     * retrieve and parse a JSON value from localStorage
     * @param key - the storage key
     * @returns the parsed object, or null if not found or parse fails
     */
    static getJSON(key: string): any;
    /**
     * remove an item from localStorage
     * @param key - the storage key to remove
     */
    static removeItem(key: string): null | undefined;
    /** clear all localStorage entries */
    static clear(): null | undefined;
}
export default Storage;