A class attribute that allows you to define label constraints on a MonoBehavior or ScriptableObject's field in the object selector.
This attribute allows you to specify labels that an Asset must have for the object selector to display it.
| labels | The labels to match. | 
| matchAll | Boolean that indicates whether all labels, or only one of them, should match. Default is true. | 
| ObjectSelectorHandlerWithLabelsAttribute | Constructor used to declare the ObjectSelectorHandlerWithLabelsAttribute on a field. |