/// <reference types="node" />
import Tunnel from '../tunnel/tunnel';
import { RPCImpl } from 'protobufjs';
import { EventEmitter } from 'node:events';
import { HaltReasonResponse } from '../../../../proto_gen/proto';
declare type RPCImplParams = Parameters<RPCImpl>;
export declare type RPCImplMethod = RPCImplParams[0];
export declare type RPCImplData = RPCImplParams[1];
export declare type RPCImplCb = RPCImplParams[2];
export declare class ProtobufToTunnel extends EventEmitter {
    tunnel: Tunnel;
    messageEmitter: EventEmitter;
    static methodToPurpose: Map<string, [number, number]>;
    static purposeToMethod: Map<number, string>;
    constructor(tunnel: Tunnel);
    rpcImpl(method: RPCImplMethod, requestData: RPCImplData, callback: RPCImplCb): void;
    waitHaltReason(): Promise<HaltReasonResponse>;
    sendPing(callback: () => any): void;
}
export {};