How to use the @bentley/ui-framework.UiFramework.oidcClient function in @bentley/ui-framework

constructor(props: any) {
    super(props);

    AppUi.initialize();
    this._initializeSignin(!!UiFramework.oidcClient && UiFramework.oidcClient.isAuthorized); // tslint:disable-line:no-floating-promises
  }

constructor(info: ConfigurableCreateInfo, options: any) {
    super(info, options);

    if (UiFramework.oidcClient && UiFramework.oidcClient.isAuthorized)
      this.reactElement = ;
    else
      this.reactElement = null;
  }

public componentDidMount() {
    UiFramework.backstageManager.itemsManager.add(this._backstageItemProvider.backstageItems);
    SyncUiEventDispatcher.onSyncUiEvent.addListener(this.handleSyncUiEvent);
    if (UiFramework.oidcClient)
      UiFramework.oidcClient.onUserStateChanged.addListener(this._onUserStateChanged);
  }

constructor(info: ConfigurableCreateInfo, options: any) {
    super(info, options);

    this.reactElement = ;
  }

constructor(info: ConfigurableCreateInfo, options: any) {
    super(info, options);

    const iModelConnection = UiFramework.getIModelConnection();
    if (iModelConnection && UiFramework.oidcClient && UiFramework.oidcClient.isAuthorized)
      this.reactElement = ;
    else
      this.reactElement = null;
  }