import { Interface } from '@ethersproject/abi';
import { AbiCoder } from 'web3-eth-abi';
import { Contract } from 'web3-eth-contract';
import { Address, SimpleExchangeParam, NumberAsString } from '../types';
import { IDexHelper } from '../dex-helper';
import { NeedWrapNativeFunc } from './idex';
export declare const FRIENDLY_LOCAL_DEADLINE: number;
export declare const getLocalDeadlineAsFriendlyPlaceholder: () => string;
export declare class SimpleExchange {
    protected readonly dexHelper: IDexHelper;
    dexKey: string;
    simpleSwapHelper: Interface;
    protected abiCoder: AbiCoder;
    erc20Interface: Interface;
    erc20Contract: Contract;
    needWrapNative: boolean | NeedWrapNativeFunc;
    isFeeOnTransferSupported: boolean;
    protected augustusAddress: Address;
    protected augustusV6Address: Address | undefined;
    protected augustusInterface: Interface;
    protected augustusV6Interface: Interface;
    protected network: number;
    readonly cacheStateKey: string;
    constructor(dexHelper: IDexHelper, dexKey: string);
    protected getApproveSimpleParam(token: Address, target: Address, amount: string): Promise<SimpleExchangeParam>;
    protected buildSimpleParamWithoutWETHConversion(src: Address, srcAmount: NumberAsString, dest: Address, destAmount: NumberAsString, swapCallData: string, swapCallee: Address, spender?: Address, networkFee?: NumberAsString, preCalls?: Omit<SimpleExchangeParam, 'networkFee'>, skipApproval?: boolean): Promise<SimpleExchangeParam>;
    protected isWETH(tokenAddress: string): boolean;
}