export declare class CNPJ {
    private static LISTA_IGNORADA;
    private static STRICT_STRIP_REGEX;
    private static LOOSE_STRIP_REGEX;
    private static retornarDigito;
    static formatar(numero: string): string;
    static limpar(numero: string, strict?: boolean): string;
    private static atualizarComDV;
    static validar(numero: string, strict?: boolean): boolean;
    static gerar(formatado: boolean): string;
}