import { ConfirmOptions, Connection, Transaction, TransactionError, TransactionSignature, VersionedTransaction } from '@solana/web3.js';
declare const DEFAULT_CONFIRM_OPTS: ConfirmOptions;
export type ConfirmedTx = {
    txSig: TransactionSignature;
    slot: number;
    err: TransactionError | null;
};
type Logger = {
    info: (msg: string) => void;
    warn: (msg: string) => void;
    error: (msg: string) => void;
    debug: (msg: string) => void;
};
type ConfirmOpts = {
    disableWs?: boolean;
};
export declare class RetryTxSender {
    private done;
    private resolveReference;
    private start?;
    private txSig?;
    private confirmedTx?;
    readonly connection: Connection;
    readonly additionalConnections: Connection[];
    readonly logger?: Logger;
    readonly opts: ConfirmOptions;
    readonly timeout: number;
    readonly retrySleep: number;
    constructor({ connection, additionalConnections, logger, txSig, opts, timeout, retrySleep, }: {
        connection: Connection;
        additionalConnections?: Connection[];
        /** pass an optional logger object (can be console, can be winston) if you want verbose logs */
        logger?: Logger;
        /** pass an optional txSig if you want to confirm at signature without resending it. */
        txSig?: string;
        opts?: typeof DEFAULT_CONFIRM_OPTS;
        timeout?: number;
        retrySleep?: number;
    });
    send(tx: Transaction | VersionedTransaction): Promise<TransactionSignature>;
    tryConfirm(lastValidBlockHeight?: number, opts?: ConfirmOpts): Promise<ConfirmedTx>;
    private _confirmTransaction;
    private _getTimestamp;
    private _stopWaiting;
    private _sleep;
    private _outdatedBlockHeightPromise;
    private _racePromises;
    private _sendToAdditionalConnections;
    addAdditionalConnection(newConnection: Connection): void;
}
export {};
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