import { BigNumberish } from 'ethers';
/**
 * Parses a number to blockchain unit.
 * Use this function before sending a number to a smart contract.
 *
 * @param num - The number to parse.
 * @param decimals - The number of decimal places in the blockchain unit.
 * @returns The parsed number as a string.
 */
export declare const parseUnits: (num: number, decimals: number) => import("ethers").BigNumber;
/**
 * Formats a blockchain number to decimal.
 * Use this function before returning data.
 *
 * @param amount - The blockchain number as a string, undefined, or BigNumberish.
 * @param decimals - The number of decimal places in the blockchain unit (default: 18).
 * @returns The formatted number as a decimal.
 */
export declare const formatUnits: (amount: string | undefined | BigNumberish, decimals?: number) => number;