polish-utils/dist/types/nip/index.d.ts

Lightweight library for extracting data and validating polish identification numbers such as PESEL or NIP

declare class NIP {
    private readonly valid;
    private readonly nip;
    constructor(nip: string);
    get isValid(): boolean;
    getIssuingTaxOfficeCode(): string;
    private validate;
}
export { NIP };