/// <reference types="node" />
/// <reference types="node" />
import EventEmitter from "events";
/**
 * APDU transport layer allowing third-party developers to make raw calls
 * to a Ledger device.
 */
export default class LedgerPlatformApduTransport {
    /**
     * low level api to communicate with the device
     * This method is for implementations to implement but should not be directly called.
     * Instead, the recommanded way is to use send() method
     * @param apdu the data to send
     * @return a Promise of response data
     */
    exchange(_apdu: Buffer): Promise<Buffer>;
    /**
     * set the "scramble key" for the next exchanges with the device.
     * Each App can have a different scramble key and they internally will set it at instanciation.
     * @param key the scramble key
     */
    setScrambleKey(_key: string): void;
    /**
     * close the exchange with the device.
     * @return a Promise that ends when the transport is closed.
     */
    close(): Promise<void>;
    _events: EventEmitter;
    /**
     * Listen to an event on an instance of transport.
     * Transport implementation can have specific events. Here is the common events:
     * * `"disconnect"` : triggered if Transport is disconnected
     */
    on(eventName: string, cb: (...args: Array<any>) => any): void;
    /**
     * Stop listening to an event on an instance of transport.
     */
    off(eventName: string, cb: (...args: Array<any>) => any): void;
    /**
     * Enable or not logs of the binary exchange
     */
    setDebugMode(): void;
    /**
     * Set a timeout (in milliseconds) for the exchange call. Only some transport might implement it. (e.g. U2F)
     */
    setExchangeTimeout(_exchangeTimeout: number): void;
    /**
     * Define the delay before emitting "unresponsive" on an exchange that does not respond
     */
    setExchangeUnresponsiveTimeout(_unresponsiveTimeout: number): void;
    /**
     * wrapper on top of exchange to simplify work of the implementation.
     * @param cla
     * @param ins
     * @param p1
     * @param p2
     * @param data
     * @param statusList is a list of accepted status code (shorts). [0x9000] by default
     * @return a Promise of response buffer
     */
    send(_cla: number, _ins: number, _p1: number, _p2: number, _data?: Buffer, _statusList?: Array<number>): Promise<Buffer>;
}