export interface IUtility {
    numTokandM(numString: string | number): string | number;
    getDate(date: number | string, fullDay?: string): string;
    getTimeDifference(targetDate: string): string;
    getNDates(date: string, n: number): string[];
    getLastMonths(monthCount: number): string[];
    getDatesOfCurrentYear(arrayOfDays: string[]): string[];
    generateOtp(digit: number): number | string;
    xKeyGenerator(length: string | number): string;
    isLeapYear(year: string | number): boolean;
    isEndCentury(year: string | number): boolean;
    dayDifference(dateStr1: string, dateStr2: string): number | null;
    getDay(dateStr: string): string;
    daysOfYear(dateStr: string | Date): number;
    retryPromise(fn: any, retry: number, delay: number): any;
    validateEmail(email: string): boolean;
    validatePassword(password: string): boolean;
    validatePhone(Phone: string): boolean;
    validateName(Name: string): boolean;
    validateFullName(FullName: string): boolean;
    validateURL(url: string): boolean;
    validateCreditCard(cardNumber: string): boolean;
    validateIPV4(ip: string): boolean;
    validateDate(date: string): boolean;
    validateHexColor(color: string): boolean;
    validateMACAddress(mac: string): boolean;
    validateIPv6(ipv6: string): boolean;
    validateUUID(uuid: string): boolean;
    validateCreditCardCVV(cvv: string): boolean;
    validateLatitude(latitude: string): boolean;
    validateLongitude(longitude: string): boolean;
    validateHTMLTag(tag: string): boolean;
    validateCountryCode(code: string): boolean;
    validatePassportNumber(passport: string): boolean;
    validateBinary(binary: string): boolean;
    validateYouTubeURL(url: string): boolean;
    validateMongoObjectId(id: string): boolean;
    formatDate(date: Date): string;
    getRelativeTime(date: Date): string;
    camelToSnake(str: string): string;
    snakeToCamel(str: string): string;
    generatePort(): Promise<number>;
    isPortAvailable(port: number): Promise<boolean>;
}