/// <reference types="node" />
/// <reference types="ws" />
import WS from 'isomorphic-ws'
import { EventEmitter } from 'events'
import { WebSocketInterface } from '../megalodon'
export default class WebSocket extends EventEmitter implements WebSocketInterface {
	url: string
	stream: string
	params: string | null
	parser: Parser
	headers: {
		[key: string]: string
	}
	private _accessToken
	private _reconnectInterval
	private _reconnectMaxAttempts
	private _reconnectCurrentAttempts
	private _connectionClosed
	private _client
	private _pongReceivedTimestamp
	private _heartbeatInterval
	private _pongWaiting
	constructor(url: string, stream: string, params: string | undefined, accessToken: string, userAgent: string)
	start(): void
	private _startWebSocketConnection
	stop(): void
	subscribe(_name: string, _stream: string, _add?: Record<string, string>): void
	private _resetConnection
	private _resetRetryParams
	private _reconnect
	private _connect
	private _clearBinding
	private _bindSocket
	private _setupParser
	private _checkAlive
}
export declare class Parser extends EventEmitter {
	parse(ev: WS.MessageEvent): void
}