import WebSocket, { RawData } from 'ws';
export type WsMessage = {
    type: 'NEW_SESSION' | 'RECOVERED_SESSION' | 'REQUEST' | 'RESPONSE' | 'INFO' | 'ACK';
    /**
     * message reception acknowledge code
     */
    ack?: number;
    /**
     * sent with type REQUEST and RESPONSE
     */
    target?: string;
    /**
     * sent with type RESPONSE
     */
    success?: boolean;
    /**
     * sent with type RESPONSE when success: false
     */
    error?: string;
    /**
     * sent with type RESPONSE when success: false
     */
    code?: number;
    /**
     * sent with type RESPONSE  when success: true
     */
    result?: object;
};
/**
 * serialize data to send through a websocket
 */
export declare function serializeData<T extends WsMessage>(data: T): Buffer<ArrayBufferLike>;
/**
 * deserialize data received through a websocket
 */
export declare function deserializeData<T extends WsMessage>(data: RawData): T;
export declare function createReconnectingWs(host: string, options?: {
    /**
     * use to register event listeners
     */
    connectCallback?: (ws: WebSocket) => void;
    /**
     * use to perform operation that must be done only once when the session is established
     */
    initCallback?: (ws: WebSocket) => void;
    /**
     * called when session with server is definitely broken
     */
    errorCallback?: (err: Error) => void;
    /**
     * connection headers
     */
    headers?: Record<string, string>;
}): void;