/**
 *
 *
 * @export
 * @param {Uint8Array} plain
 * @return {string}  {string}
 */
export declare function encode(plain: Uint8Array, { pad }?: {
    pad?: boolean | undefined;
}): string;
/**
 *
 *
 * @export
 * @param {string} encoded
 * @return {Uint8Array}  {Uint8Array}
 */
export declare function decode(encoded: string): Uint8Array;