export declare type UnitOptionsObject = {
    /**
     * 单位名称
     */
    name: string;
    /**
     * 阈值
     *
     * 超出此阈值后会用此单位, 同时也是基数
     *
     * @example
     *
     * ```json
     * {
     *   "name": "KB",
     *   "threshold": 1024
     * }
     * ```
     * 大于或等于 1024 后会用 KB，比如 2048 会显示为 2 KB
     */
    threshold: number;
};
export declare type UnitOptions = UnitOptionsObject[] | string;
export declare type UnitHumanizeNumFn = (num?: number) => string;
export declare function createUnit(value?: number, options?: UnitOptions, decimals?: number): string;