-import AbstractUIService from './ui-services/AbstractUIService';
import { Server as HttpServer } from 'http';
-import { ProtocolVersion } from '../../types/UIProtocol';
+
import WebSocket from 'ws';
+import { ProtocolVersion } from '../../types/UIProtocol';
+import AbstractUIService from './ui-services/AbstractUIService';
+
export abstract class AbstractUIServer {
public readonly chargingStations: Set<string>;
protected readonly uiServices: Map<ProtocolVersion, AbstractUIService>;