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src/app/shared/services/socket.service.ts

 import { Injectable } from '@angular/core';
 import { webSocket, WebSocketSubject } from 'rxjs/webSocket';
-import {BehaviorSubject, catchError, delayWhen, EMPTY, Observable, retryWhen, Subject, tap, timer} from "rxjs";
+import { BehaviorSubject,Subject } from "rxjs";
 import { config } from "../../../assets/config/config";