import { SwapSide } from '@paraswap/core';
import { IDexHelper } from '../../dex-helper';
import { Logger, Address, Token } from '../../types';
import { OrderInfo } from '../paraswap-limit-orders/types';
import { PriceAndAmountBigNumber, RFQConfig } from './types';
export declare const reversePrice: (price: PriceAndAmountBigNumber) => PriceAndAmountBigNumber;
export declare class RateFetcher {
    private dexHelper;
    private config;
    private dexKey;
    private logger;
    private readonly tokensFetcher;
    private readonly pairsFetcher;
    private readonly rateFetcher;
    private readonly blackListFetcher?;
    private tokens;
    private addressToTokenMap;
    private pairs;
    private readonly firmRateAuth?;
    private readonly authHttp;
    private verifierContract?;
    constructor(dexHelper: IDexHelper, config: RFQConfig, dexKey: string, logger: Logger, setBlacklist: (blacklist: string[]) => Promise<void>);
    initialize(): Promise<void>;
    start(): void;
    stop(): void;
    private handleTokensResponse;
    private handlePairsResponse;
    private buildBlackListResponseHandler;
    private handleRatesResponse;
    checkHealth(): boolean;
    getPairsLiquidity(tokenAddress: string): {
        connectorTokens: Token[];
        liquidityUSD: number;
    }[];
    getAvailablePairs(): Promise<string[]>;
    getOrderPrice(srcToken: Token, destToken: Token, side: SwapSide): Promise<PriceAndAmountBigNumber[] | null>;
    getFirmRate(_srcToken: Token, _destToken: Token, srcAmount: string, side: SwapSide, takerAddress: Address, userAddress: Address, partner?: string, special?: boolean): Promise<OrderInfo>;
}