export declare const AMOUNT_SCALE = 4;
export declare function toUnits(value: string | number | null | undefined): number;
export declare function fromUnits(units: number): string;
export declare function sumUnits(...values: number[]): number;
declare const _default: {
    AMOUNT_SCALE: number;
    toUnits: typeof toUnits;
    fromUnits: typeof fromUnits;
    sumUnits: typeof sumUnits;
};
export default _default;