interface FaceTime {
    phone?: string;
}
/**
 * Open FaceTime app.
 *
 * @param payload - Phone number.
 * @returns FaceTime open URL.
 * @example
 * facetime({ phone: '1234567890' })
 * // => 'tel://1234567890'
 */
export declare function facetime(payload?: FaceTime): string;
export {};