import BN from "bn.js";
import { BatchExchangeInstance } from "../types/truffle-typings";
export interface TokenInfo {
    id: number;
    address: string;
    symbol?: string;
    decimals?: number;
}
/**
 * Used to recover relevant {@link TokenInfo | TokenInfo} by ID from the exchange such as number of decimals or name.
 * @param exchange - An instance of deployed Batch Exchange Contract
 * @param tokenIds - An array of token ids as listed on the Batch Exchange.
 * @param artifacts - A context-like object providing a gateway to Truffle contract ABIs.
 * @returns A mapping of TokenInfo objects fetched from the exchange.
 *   Note that nullish TokenInfo objects are returned in places where the requested token ID failed to fetch.
 */
export declare function fetchTokenInfoFromExchange(exchange: BatchExchangeInstance, tokenIds: number[], artifacts: Truffle.Artifacts): Promise<Map<number, TokenInfo>>;
/**
 * A handy function providing fee token liquidity by placing orders selling the fee token
 * at the specified provision price for each specified token.
 * @param exchange - BatchExchange Smart Contract
 * @param tokenIds - An array of token indices as represented on the exchange
 * @param provisionPrice - Price at which liquidity is to be provided
 * @param sellAmountOwl - Amount of feeToken to be sold
 * @param artifacts - A context-like object providing a gateway to Truffle contract ABIs.
 * @returns Void Promise
 */
export declare function placeFeeTokenLiquidityOrders(exchange: BatchExchangeInstance, tokenIds: number[], provisionPrice: BN, sellAmountOwl: BN, artifacts: Truffle.Artifacts): Promise<number[]>;