import { default as BigNumber } from 'bignumber.js';

export type NumberOptions = {
    /**
     * 是否显示千分位
     */
    showCommas?: boolean;
    /**
     * 小数位数，0 表示截断到整数
     */
    decimals?: number;
    /**
     * 舍入模式，默认为向下截断
     */
    roundingMode?: BigNumber.RoundingMode;
};
export declare function formatNumber(number: number | string | undefined, options?: NumberOptions): string;