/******************************************************************************
 *
 *  (C) 2022 AhnLab Blockchain Company, Inc. All rights reserved.
 *  Any part of this source code can not be copied with any method without
 *  prior written permission from the author or authorized person.
 *
 ******************************************************************************/
/// <reference types="node" />
import EventEmitter from 'events';
import { ethers } from 'ethers';
import { NetworkModel, TxModel } from '../../main/transactions/interface';
export declare class ProviderConnectionManager extends EventEmitter {
    connection: any;
    query: any;
    ethQuery: any;
    ethersProvider: ethers.providers.Web3Provider;
    connected: any;
    web3: any;
    chainId: any;
    caver: any;
    _providerProxy: any;
    _blockTrackerProxy: any;
    _provider: any;
    _blockTracker: any;
    web3Alchemy: any;
    constructor();
    initialize({ rpcUrl, chainId }: {
        rpcUrl: any;
        chainId: any;
    }): void;
    _setNetworkClient({ networkMiddleware, blockTracker }: {
        networkMiddleware: any;
        blockTracker: any;
    }): void;
    _setProviderAndBlockTracker({ provider, blockTracker }: {
        provider: any;
        blockTracker: any;
    }): void;
    getProviderAndBlockTracker(): {
        provider: any;
        blockTracker: any;
    };
    connect(network: NetworkModel, accToken?: string): Promise<void>;
    getGasPrice(): Promise<string>;
    broadcastTx(rawTx: string, txId: string | undefined, txModel: TxModel | undefined): Promise<any>;
    getTransactionCount(address: string): Promise<string>;
    getLatestBlock(): Promise<any>;
    getBalance(address: string): Promise<string>;
    getCode(to: string): Promise<any>;
    estimateGas(txMeta: any): Promise<string>;
    getTransactionReceipt(txHash: string): Promise<any>;
    getKlaytnTransactionReceipt(txHash: string): Promise<any>;
    getTokenDecimal(contractAddress: string): Promise<string>;
    getTokenSymbol(contractAddress: string): Promise<string>;
    getTokenBalance(contractAddress: string, ethAddress: string): Promise<string>;
    getTokenName(contractAddress: string): Promise<string>;
    getKlaytnTokenBalance(contractAddress: string, ethAddress: string): Promise<string>;
}