-import { Observable, timer as observableTimer, of as ofObservable } from 'rxjs'
+import { Observable, of as ofObservable, timer as observableTimer } from 'rxjs'
import { switchMap } from 'rxjs/operators'
import { PreloadingStrategy, Route } from '@angular/router'
-import { Injectable } from "@angular/core";
+import { Injectable } from '@angular/core'
@Injectable()
export class PreloadSelectedModulesList implements PreloadingStrategy {