import { BigNumber } from 'ethers';
import { Prettify } from '../../utils';
import { EngineID, StepParams } from '../core';
export declare type SwapEngineQuote = {
    engineID: EngineID;
    engineName: string;
    chainId: number;
    fromToken: string;
    fromAmount: BigNumber;
    toToken: string;
    expectedToAmount: BigNumber;
    steps?: StepParams[];
};
export declare type SwapEngineRoute = Prettify<Required<SwapEngineQuote> & {
    minToAmount: BigNumber;
}>;
export declare const getEmptyQuote: (engineID: EngineID) => SwapEngineQuote;
export declare const getEmptyRoute: (engineID: EngineID) => SwapEngineRoute;
export declare const sanitizeMultiStepQuote: (quote: SwapEngineQuote) => SwapEngineQuote;
export declare const sanitizeMultiStepRoute: (route: SwapEngineRoute) => SwapEngineRoute;