import { Transaction } from 'ethers';
import { HttpClient } from './api/common';
import { RelayEstimation, RelayTxOptions } from './common';
import type { UserDefinedEnvelopingRequest } from './common/relayRequest.types';
import EnvelopingEventEmitter from './events/EnvelopingEventEmitter';
declare class RelayClient extends EnvelopingEventEmitter {
    private _relayServerUrl?;
    private readonly _envelopingConfig;
    private readonly _httpClient;
    constructor(httpClient?: HttpClient, _relayServerUrl?: string | undefined);
    getRelayServerUrl(): string | undefined;
    get httpClient(): HttpClient;
    private _getEnvelopingRequestDetails;
    private _isCallInvalid;
    private _prepareHttpRequest;
    private _prepareTokenGas;
    private _calculateGasPrice;
    isSmartWalletOwner(smartWalletAddress: string, owner: string): Promise<boolean>;
    relayTransaction(envelopingRequest: UserDefinedEnvelopingRequest, options?: RelayTxOptions): Promise<Transaction>;
    estimateRelayTransaction(envelopingRequest: UserDefinedEnvelopingRequest, options?: RelayTxOptions): Promise<RelayEstimation>;
    private _getHubEnvelopingTx;
    private _getRelayServer;
    private _getRelayInfo;
    private _attemptRelayTransaction;
    /**
     * In case Relay Server does not broadcast the signed transaction to the network,
     * client also broadcasts the same transaction. If the transaction fails with nonce
     * error, it indicates Relay may have signed multiple transactions with same nonce,
     * causing a DoS attack.
     *
     * @param {*} signedTx - actual Ethereum transaction, signed by a relay
     */
    private _broadcastTx;
    private _verifyEnvelopingRequest;
    private _verifyWorkerBalance;
    private _verifyWithVerifiers;
    private _verifyWithRelayHub;
}
export default RelayClient;
export { RelayTxOptions };