/// <reference types="node" />
import { PublicKeyString } from '@neo-one/client-common';
import { HDStore } from './types';
export interface LedgerQueueRequest {
    readonly msg: Buffer;
    readonly resolve: (value: Buffer) => void;
    readonly reject: (error: Error) => void;
}
export declare class LedgerNanoStore implements HDStore<number> {
    static readonly byteLimit: number;
    static readonly type: string;
    static readonly init: () => Promise<LedgerNanoStore>;
    private readonly ledger;
    private readonly mutableQueue;
    private mutableRunning;
    private constructor();
    getPublicKey(account?: number): Promise<PublicKeyString>;
    sign({ message, account }: {
        readonly message: Buffer;
        readonly account: number;
    }): Promise<Buffer>;
    close(): Promise<void>;
    private send;
    private startSendLoop;
    private doSend;
}