import { Network } from '../../constants';
import { IDexHelper } from '../../dex-helper';
import { Logger } from '../../types';
import { DexalotRateFetcherConfig } from './types';
export declare class RateFetcher {
    private dexHelper;
    private dexKey;
    private network;
    private logger;
    private pairsFetcher;
    private pairsCacheKey;
    private pairsCacheTTL;
    private rateFetcher;
    private pricesCacheKey;
    private pricesCacheTTL;
    private tokensAddrCacheKey;
    private tokensCacheKey;
    private tokensCacheTTL;
    private blacklistFetcher;
    constructor(dexHelper: IDexHelper, dexKey: string, network: Network, logger: Logger, config: DexalotRateFetcherConfig);
    start(): void;
    stop(): void;
    private handlePairsResponse;
    private handleRatesResponse;
    private buildBlacklistResponseHandler;
}