import { BigNumber } from 'ethers';
import { EngineID, Slippage } from '../core';
import { RouteInput, SwapEngineRoute } from '../models';
export declare type TransactionData = {
    chainId: number;
    to: string;
    value: string;
    data: string;
};
export declare type SwapAPIResponse = {
    expectedToAmount: BigNumber;
    transaction: TransactionData;
};
export declare const EMPTY_SWAP_API_RESPONSE: SwapAPIResponse;
export declare const generateAPIRoute: (input: RouteInput, engineID: EngineID, slippage: Slippage, response: SwapAPIResponse) => SwapEngineRoute;