/// <reference types="node" />
/** ******************************************************************************
 *  (c) 2019 - 2023 Zondax AG
 *  (c) 2016-2017 Ledger
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ******************************************************************************* */
import type Transport from "@ledgerhq/hw-transport";
import { type ResponseAddress, type ResponseInfo, type ResponseSign, type ResponseVersion } from "./types";
export declare class PolkadotApp {
    transport: Transport;
    readonly cla: number;
    constructor(transport: Transport);
    private getChunks;
    getVersion(): Promise<ResponseVersion>;
    appInfo(): Promise<ResponseInfo>;
    getAddress(path: string, ss58prefix: number, showAddrInDevice?: boolean): Promise<ResponseAddress>;
    private signSendChunk;
    private signImpl;
    sign(path: string, blob: Buffer, metadata: Buffer): Promise<ResponseSign>;
    signRaw(path: string, blob: Buffer): Promise<ResponseSign>;
}