import type { MaskableType } from './types';
/**
 * Luhn mod-10 checksum used by issued PAN formats. Rejects numeric strings
 * of plausible card length that aren't valid card numbers, cutting the
 * false-positive rate of the regex-only heuristic substantially.
 */
export declare function passesLuhn(digits: string): boolean;
export declare const Detectors: {
    isEmail: (v: string) => boolean;
    isPhone: (v: string) => boolean;
    isCard: (v: string) => boolean;
    isAddress: (v: string) => boolean;
    isName: (v: string) => boolean;
    isIp: (v: string) => boolean;
    isJwt: (v: string) => boolean;
    isUrl: (v: string) => boolean;
    isSensitiveKey: (key: string) => boolean;
    /**
     * Detect the type of a string value using pre-compiled patterns.
     * Order matters: more specific patterns first so cards don't lose to phone.
     */
    detectType(value: string): MaskableType;
};
//# sourceMappingURL=detectors.d.ts.map