CompositeDisposable.cs

private class Hoge : IDisposable
{
    private readonly CompositeDisposable _compositeDisposable = new CompositeDisposable();

    public void Initialize()
    {
        Observable.EveryUpdate()
            .Subscribe()
            .AddTo(_compositeDisposable);
    }
    
    public void Dispose()
    {
        _compositeDisposable.Dispose();
    }
}