import { providers } from 'ethers';
import BaseService from '../commons/BaseService';
import { eEthereumTxType, transactionType } from '../commons/types';
import { WETH9 } from './typechain/WETH9';
export declare class WETHService extends BaseService<WETH9> {
    contractAddress: string;
    constructor(provider: providers.Provider, address: string);
    deposit(amount: number, onBehalfOf: string): Promise<{
        tx: () => Promise<transactionType>;
        txType: eEthereumTxType;
        gas: import("../commons/types").GasResponse;
    }>;
    withdraw(amount: number, onBehalfOf: string): Promise<{
        tx: () => Promise<transactionType>;
        txType: eEthereumTxType;
        gas: import("../commons/types").GasResponse;
    }>;
}
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