export declare const PHONE_MASK_PATTERN: {
    '0': {
        pattern: RegExp;
        fallback: string;
        optional: boolean;
    };
    '#': {
        pattern: RegExp;
        optional: boolean;
    };
    _: {
        pattern: RegExp;
        optional: boolean;
    };
    X: {
        pattern: RegExp;
        optional: boolean;
    };
    '9': {
        pattern: RegExp;
        fallback: string;
        optional: boolean;
    };
};