/** IMask pattern for ÅÅÅÅMMDDKKKK (12 digits, no separator). */
export declare const SSN_MASK = "000000000000";
/** Alphanumeric mask when interim numbers (letters in num part) are allowed. */
export declare const SSN_INTERIM_MASK = "XXXXXXXXXXXX";
export declare const SSN_INTERIM_MASK_OPTIONS: {
    readonly lazy: true;
    readonly definitions: {
        readonly X: RegExp;
    };
};
export declare function getSsnMask(allowInterimNumber: boolean): string;
export declare function getSsnMaskOptions(allowInterimNumber: boolean): {
    readonly lazy: true;
    readonly definitions: {
        readonly X: RegExp;
    };
} | {
    lazy: boolean;
};