export declare const AdvancedPhoneNumberUtil: {
    visibleLen: number;
    lenWithCountryCode: number;
    template: string;
    formatter: (s: string) => {
        text: string;
    };
};
/**
 * Takes in a phone number in any format and converts it to an 11-digit string that
 * starts with the US/Canada country code of 1.
 */
export declare function normalizePhoneNumber(phoneNumber: string): string;
/** Format a phone number for display. Uses [[`normalizePhoneNumber`]]. */
export declare function formatPhoneNumber(phoneNumber: string | undefined | null): string;