import { OrderbookL2Response, OrderbookResponse } from '../../../../types';
import { WebsocketData } from '../../websocket-insider';
/**
 * transform raw websocket data to OrderbookL2Response
 * @param source raw websocket data
 */
export declare function transform(source: WebsocketData<OrderbookResponse>): OrderbookL2Response;
export declare function update(originSource: WebsocketData<OrderbookResponse>, updateSource: WebsocketData<OrderbookResponse>): WebsocketData<OrderbookResponse>;