How to use the firebaseui-angular.firebaseui.auth function in firebaseui-angular

import {FirebaseUIModule, firebase, firebaseui} from 'firebaseui-angular';

import {AngularFireModule} from '@angular/fire';
import {AngularFireAuthModule} from '@angular/fire/auth';
import { environment } from 'src/environments/environment';

const firebaseUiAuthConfig: firebaseui.auth.Config = {
  signInFlow: 'popup',
  signInOptions: [
    firebase.auth.EmailAuthProvider.PROVIDER_ID,
    // firebase.auth.PhoneAuthProvider.PROVIDER_ID,
  ],
  tosUrl: '/terms',
  privacyPolicyUrl: '/privacy',
  credentialHelper: firebaseui.auth.CredentialHelper.NONE,
};

@NgModule({
  declarations: [
    AppComponent,
    NotFoundComponent,
    MapComponent,
    GameSelectorComponent,
    AboutComponent,
    LefleatMapComponent,
    InfoPanelComponent,
    GameComponent,
    SidebarComponent,
    HeaderComponent,
  ],
  entryComponents: [],

'user_likes',
        'user_friends'
      ],
      customParameters: {
        'auth_type': 'reauthenticate'
      },
      provider: firebase.auth.FacebookAuthProvider.PROVIDER_ID
    },
    firebase.auth.TwitterAuthProvider.PROVIDER_ID,
    firebase.auth.GithubAuthProvider.PROVIDER_ID,
    {
      requireDisplayName: false,
      provider: firebase.auth.EmailAuthProvider.PROVIDER_ID
    },
    firebase.auth.PhoneAuthProvider.PROVIDER_ID,
    firebaseui.auth.AnonymousAuthProvider.PROVIDER_ID
  ],
  tosUrl: '',
  privacyPolicyUrl: '',
  credentialHelper: firebaseui.auth.CredentialHelper.ACCOUNT_CHOOSER_COM
};

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    AppRoutingModule,
    AngularFireModule.initializeApp(environment.firebaseConfig),
    AngularFireAuthModule,

'auth_type': 'reauthenticate'
      },
      provider: firebase.auth.FacebookAuthProvider.PROVIDER_ID
    },
    firebase.auth.TwitterAuthProvider.PROVIDER_ID,
    firebase.auth.GithubAuthProvider.PROVIDER_ID,
    {
      requireDisplayName: false,
      provider: firebase.auth.EmailAuthProvider.PROVIDER_ID
    },
    firebase.auth.PhoneAuthProvider.PROVIDER_ID,
    firebaseui.auth.AnonymousAuthProvider.PROVIDER_ID
  ],
  tosUrl: '',
  privacyPolicyUrl: '',
  credentialHelper: firebaseui.auth.CredentialHelper.ACCOUNT_CHOOSER_COM
};

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    AppRoutingModule,
    AngularFireModule.initializeApp(environment.firebaseConfig),
    AngularFireAuthModule,
    FirebaseUIModule.forRoot(firebaseUiAuthConfig)
  ],
  providers: [],
  bootstrap: [AppComponent]