private void Setup(AuthApi auth) { if (m_authIndicatorImage == null) { Debug.LogWarning("The tester only works, if you provide an auth indicator image"); return; } m_authIndicatorImage.color = NEGATIVE; auth.observeCurrentUser() .Subscribe(user => { if (user != null) { m_authIndicatorImage.color = POSITIVE; } else { m_authIndicatorImage.color = NEGATIVE; } }); }