/**
 * ibantools-germany
 * Copyright (c) 2022-2026 Markus Baumer <markus@baumer.dev>
 * SPDX-License-Identifier: MIT OR MPL-2.0
 */
import type { AccountNumberBLZ, ProbablyString } from "./types";
/**
 * Extract account number and BLZ from BBAN
 *
 * @param bban German BBAN with 18 digits
 * @returns Object with Account number and BLZ or null if invalid
 */
export declare const extractAccountNumberBLZFromBBAN: (bban: ProbablyString) => AccountNumberBLZ | null;