import { Service } from '../../../Service';
import BigNumber from 'bignumber.js';
import { Tx } from '../../../interfaces/Tx';
import { IManagedDerivative } from '../../../interfaces/IManagedDerivative';
export declare class ManagedDerivativeService extends Service implements IManagedDerivative {
    private feeService;
    private derivative;
    private constructor();
    static create(productAddress: string): Promise<ManagedDerivativeService>;
    close(): Promise<Tx>;
    withdrawFee(amountEth: number, gasPrice: number): Promise<Tx | null>;
    calculateWithdrawFeeGas(amountEth: number): Promise<BigNumber>;
    getManagementFee(): Promise<BigNumber>;
    getETHBalance(): Promise<BigNumber>;
    getAccumulatedFee(): Promise<BigNumber>;
    sellAllTokens(): Promise<Tx | null>;
}