export default class NumberUtil {
    formatInteger(value: any, thousandsSeparator: any): any;
    formatDecimal(value: any, thousandsSeparator: any, decimalSeparator: any, decimalNumDigits: any): any;
    formatCurrency(value: any, thousandsSeparator: any, decimalSeparator: any, decimalNumDigits: any, currency: any): any;
    format(value: any, thousandsSeparator: any, decimalSeparator?: any, decimalNumDigits?: any, currency?: any): any;
    unformat(value: any): any;
    toFixed(value: any, numDigits: any): any;
}