/**
 * ibantools-germany
 * Copyright (C) 2022-2024 Markus Baumer <markus@baumer.dev>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.

 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
import { ProbablyString } from "./types";
/**
 * Validate bank account number and BLZ
 *
 * IMPORTANT: A positive result does not does not necessarily mean that
 * the account exists; it only checks for structure and check digit!
 *
 * @param accountNumber Account number with up to 10 digits
 * @param blz German BLZ with 8 digits
 * @returns
 */
export declare const isValidAccountNumberBLZ: (accountNumber: ProbablyString, blz: ProbablyString) => boolean;
/**
 * Validate German BBAN
 *
 * IMPORTANT: A positive result does not does not necessarily mean that
 * the account exists; it only checks for structure and check digit!
 *
 * @param bban German BBAN with 18 digits
 * @returns
 */
export declare const isValidBBAN: (bban: ProbablyString) => boolean;
/**
 * Validate (German) IBAN
 *
 * If `onlyGermany` is true, it will return false for any IBAN not starting
 * with "DE". If false, non-German IBAN will be verified but no national
 * methods will be applied.
 *
 * IMPORTANT: A positive result does not does not necessarily mean that
 * the account exists; it only checks for structure and check digit!
 *
 * @param iban German IBAN with 22 chars
 * @param onlyGermany Allow only German IBANs (default: false)
 * @returns
 */
export declare const isValidIBAN: (iban: ProbablyString, onlyGermany?: boolean) => boolean;