import LedgerEth from '@ledgerhq/hw-app-eth';
import Transport from '@ledgerhq/hw-transport';
export default class LedgerBridge {
    transport: Transport;
    app: LedgerEth;
    constructor();
    addEventListeners(): void;
    sendMessageToExtension(msg: any): void;
    makeApp(): Promise<void>;
    cleanUp(replyAction?: string): void;
    unlock(replyAction: string, hdPath: string): Promise<void>;
    signTransaction(replyAction: string, hdPath: string, tx: any): Promise<void>;
    signPersonalMessage(replyAction: string, hdPath: string, message: string): Promise<void>;
    ledgerErrToMessage(err: any): any;
}