import { Observable } from 'rxjs';
import { OrderbookL2Response } from '../../../../types';
import { WebsocketInsider } from '../../websocket-insider';
export declare class Orderbook {
    private readonly ws;
    constructor(ws: WebsocketInsider);
    orderbookL2T25$(pair?: string | string[]): Observable<OrderbookL2Response>;
    stopOrderbookL2T25(pair?: string | string[]): void;
}