import WebSocket from 'ws';
import { BaseOperator } from './BaseOperator';
export declare abstract class WebSocketOperator extends BaseOperator {
    protected ws: WebSocket | null;
    protected url: string;
    protected reconnectTimeout: number;
    constructor(url: string);
    protected setupWebSocket(): void;
    protected abstract onConnectionOpen(): void;
    protected abstract onMessage(data: WebSocket.Data): void;
    start(): Promise<void>;
    stop(): Promise<void>;
}
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