How can I inject a function into lazy-loading?

my target is a bit bigger but for now i just want to execute a function before the child routes are loaded, i have this:

features.module.ts

export function initializeApp(appInitService: AppInitService) {// esta funcion es la que quiero ejecutar
  return (): Promise<any> => {
    console.log("este si lo esta llamando");
    return appInitService.Init();
  }
}
const routes: Routes = [...];

@NgModule({
  declarations: [...],
  imports: [...,
    RouterModule.forChild(routes)// aquí cargo mis routers child
  ],
  schemas:[NO_ERRORS_SCHEMA],
  providers: [
    {
      provide: APP_INITIALIZER,// este es el tipo de provider
      useFactory: initializeApp,// aquí esta la promesa que quiero ejecutar
      multi: true,
      deps: [AppInitService]
    }
  ]
})
export class FeaturesModule { }

Here I have the function that will be executed when the module is called, and app.module.tsthat calls me FeaturesModuleby lazy loading:

app.module.ts

const routes: Routes = [
    {
      path: '', component: HomeComponent, canActivate: [AuthGuard],
      loadChildren: () =>   import('./features/features.module').then(m => m.FeaturesModule)
    },
    {
      path: 'login',
      component: LoginComponent
    }
  ];

@NgModule({
  declarations: [
    AppComponent,
    HomeComponent,
    LoginComponent
  ],
  imports: [...,
    RouterModule.forRoot(routes)
  ],
  schemas:[NO_ERRORS_SCHEMA],
  bootstrap: [AppComponent]
})
export class AppModule { }

but it is not working for me, it should tell me "this is calling it" in the browser console, I am guided by this answer stackoverflow.com