import BN from "bn.js";
import { Fraction } from "./fraction";
declare type SellAmount = BN;
declare type BuyAmount = BN;
/**
 * Modifies the price to work with ERC20 units
 * @param price - Amount of buy token in exchange for one sell token
 * @param sellTokenDecimals - Number of decimals of the sell token
 * @param buyTokenDecimals - Number of decimals of the buy token
 * Returns Fraction representing the number of buy tokens in exchange for one unit of sell token
 */
export declare function getUnitPrice(price: number, sellTokenDecimals: number, buyTokenDecimals: number): Fraction;
/**
 * Computes the amount of output token units from their price and the amount of input token units
 * Note that the price is expressed in terms of tokens, while the amounts are in terms of token units
 * @param price - Amount of buy token in exchange for one sell token
 * @param sellAmount - Amount of sell token units that are exchanged at price
 * @param sellTokenDecimals - Number of decimals of the sell token
 * @param buyTokenDecimals - Number of decimals of the buy token
 * Returns amount of output token units obtained
 */
export declare function getBuyAmountFromPrice(price: number, sellAmount: SellAmount, sellTokenDecimals: number, buyTokenDecimals: number): BuyAmount;
/**
 * Computes the buy and sell token amounts required for an unlimited order in the exchange
 * @param price - Price of the buyToken relative to one sell token
 * @param sellTokenDecimals - Number of decimals of the sell token
 * @param buyTokenDecimals - Number of decimals of the buy token
 * Returns amounts of sell-buy token for an unlimited order at the input price
 */
export declare function getUnlimitedOrderAmounts(price: number, sellTokenDecimals: number, buyTokenDecimals: number): {
    base: SellAmount;
    quote: BuyAmount;
};
export {};