public EventNamesAttribute(Type type, string name)

The specified member must be static and can be a Field, Property, or Method.

The member type can be anything implementing System.Collections.IEnumerable (including arrays, lists, and coroutines).

Example:

public class AttackState
{
    public static readonly StringReference[] Events = { "Hit Start", "Hit End" };

    [SerializeField]
    [EventNames(typeof(AttackState), nameof(Events))]// Get the names from AttackState.Events.
    private ClipTransition _Animation;

    protected virtual void Awake()
    {
        _Animation.Events.SetCallback(Events[0], OnHitStart);
        _Animation.Events.SetCallback(Events[1], OnHitEnd);
    }

    private void OnHitStart() { }
    private void OnHitEnd() { }
}