import { Injectable, OnDestroy } from '@angular/core';
import { Subscription } from 'rxjs';

@Injectable() // Adding the @Injectable decorator
export class SubscriptionMaster implements OnDestroy {
  private subs: Subscription = new Subscription();

  ngOnDestroy(): void {
    this.subs.unsubscribe();
  }

  protected addSubscription(subscription: Subscription): void {
    this.subs.add(subscription);
  }
}