export declare class UUID {
    private static readonly ALPHABET;
    /**
     * nanoid
     * Copyright 2017 Andrey Sitnik <andrey@sitnik.ru>
     *
     * https://github.com/ai/nanoid/blob/main/LICENSE
     *
     * @param size - The size of the UUID to generate.
     * @returns A string representing the UUID.
     */
    static nanoid(size?: number): string;
}