import type { PatternRule } from '../../types.js';
/**
 * German Steueridentifikationsnummer: eleven digits, never starting with zero,
 * no digit repeated more than three times in the first ten (BZSt rule since
 * 2016), and an ISO 7064 Mod 11,10 check digit.
 */
export declare function deTaxIdChecksum(raw: string): boolean;
export declare const deTaxIdRule: PatternRule;
export declare const dePostalCodeRule: PatternRule;
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