/**
 * Utility to convert AR to Winston and vice versa.
 */
export default class Ar {
    /**
     * Convert Winston to AR.
     * @param  {string} winstonString
     * @param  {boolean} formatted - Default is false
     * @param  {number} decimals - Default is 12
     * @param  {boolean} trim - Default is true
     * @returns {string} - The AR as string
     */
    winstonToAr(winstonString: string, { formatted, decimals, trim }?: {
        formatted?: boolean;
        decimals?: number;
        trim?: boolean;
    }): string;
    arToWinston(arString: string, { formatted }?: {
        formatted?: boolean;
    }): string;
    compare(winstonStringA: string, winstonStringB: string): number;
    isEqual(winstonStringA: string, winstonStringB: string): boolean;
    isLessThan(winstonStringA: string, winstonStringB: string): boolean;
    isGreaterThan(winstonStringA: string, winstonStringB: string): boolean;
    add(winstonStringA: string, winstonStringB: string): string;
    sub(winstonStringA: string, winstonStringB: string): string;
    private stringToBigNum;
}