import { BigNumber } from 'bignumber.js';
export declare function winstonToAr(winstonString: string, { formatted, decimals }?: {
    formatted?: boolean;
    decimals?: number;
}): string;
export declare function arToWinston(arString: string, { formatted }?: {
    formatted?: boolean;
}): string;
export declare function stringToBigNum(stringValue: string): BigNumber;