export declare const getPhoneUtil: () => Promise<any>;
export declare const validatePhoneNumber: (phoneNumber: string) => Promise<any>;
/**
 * Format a phone number to international format
 * @param phoneNumber The original phone number
 * @param defaultCountry Default country code (ISO 3166-1 alpha-2)
 * @returns Formatted phone number
 */
export declare const formatPhone: (phoneNumber: string | undefined, defaultCountry?: string) => string;