AssetRefObjectData.cs

     [SerializeField] private AssetReference _sqrARef;
     [SerializeField] private List<AssetReference> _references = new List<AssetReference>();
     [SerializeField] private List<GameObject> _completedObj = new List<GameObject>();
    
     private void Start()
     {
          _references.Add(_sqrARef);
          StartCoroutine(LoadAndWaitUntilComplete());
     }

     private IEnumerator LoadAndWaitUntilComplete()
     {
          yield return AssetRefLoader.CreateAssetsAddToList(_references, _completedObj);
     }