/**
 * Copyright 2019 the orbs-ethereum-contracts authors
 * This file is part of the orbs-ethereum-contracts library in the Orbs project.
 *
 * This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree.
 * The above notice should be included in all copies or substantial portions of the software.
 */
import Web3 from 'web3';
import { PromiEvent, TransactionReceipt } from 'web3-core';
import { IStakingService, IUnstakingStatus, StakingServiceEventCallback } from './IStakingService';
import { TUnsubscribeFunction } from '../contractsTypes/contractTypes';
export declare class StakingService implements IStakingService {
    private web3;
    private readonly stakingContractAddress;
    private stakingContract;
    constructor(web3: Web3, stakingContractAddress?: string);
    setFromAccount(address: string): void;
    getStakingContractAddress(): string;
    stake(amount: bigint): PromiEvent<TransactionReceipt>;
    unstake(amount: bigint): PromiEvent<TransactionReceipt>;
    restake(): PromiEvent<TransactionReceipt>;
    withdraw(): PromiEvent<TransactionReceipt>;
    readTotalStakedInFullOrbs(): Promise<number>;
    readStakeBalanceOf(stakeOwner: string): Promise<bigint>;
    readTotalStakedTokens(): Promise<bigint>;
    readUnstakeStatus(stakeOwner: string): Promise<IUnstakingStatus>;
    subscribeToStakedEvent(stakeOwner: string, callback: StakingServiceEventCallback): TUnsubscribeFunction;
    subscribeToUnstakedEvent(stakeOwner: string, callback: StakingServiceEventCallback): TUnsubscribeFunction;
    subscribeToRestakedEvent(stakeOwner: string, callback: StakingServiceEventCallback): TUnsubscribeFunction;
    subscribeToWithdrewEvent(stakeOwner: string, callback: StakingServiceEventCallback): TUnsubscribeFunction;
    /**
     * Dev Note : O.L : This function should be extracted and isolated for testing purpose.
     * Dev Note #2 : All the events of the 'Staking contract' have exactly the same signature.
     */
    private subscribeToStakingContractEvent;
}