import { EventEmitter } from "events";
export declare class WebsocketEventsListener extends EventEmitter {
    private websocketUrl;
    private token;
    private messageHandler;
    private websocket;
    private pingInterval;
    private connected;
    constructor(websocketUrl: string, token: string, messageHandler: (message: any) => void);
    /**
     * Connect to the WebSocket and start listening
     */
    connect(): Promise<void>;
    /**
     * Close the WebSocket connection and stop listening
     */
    close(): Promise<void>;
    /**
     * Start listening for incoming WebSocket messages
     */
    private startListening;
    /**
     * Start sending periodic ping messages
     */
    private startPinging;
    /**
     * Send a string message over the WebSocket connection
     */
    sendMessage(message: string): Promise<void>;
    /**
     * Static factory method to create and connect a new instance
     */
    static create(websocketUrl: string, token: string, messageHandler: (message: any) => void): Promise<WebsocketEventsListener>;
    /**
     * Check if websocket is connected
     */
    isConnected(): boolean;
}