notice

 _subject = new Subject<boolean | void>();
  clientExamples = toSignal(
    this._subject.pipe(
      switchMap((bool) => {
        if (bool) {
          return of([]);
        }
        return this.clientExampleService.clientExampleControllerFindAll().pipe(
          defaultIfEmpty([]),
          tap((res) => {
            if (res && res.length > 0)
              this.form.patchValue({ count: res[0].count });
          })
        );
      })
    )
  );