ProjectDDD/Assets/_DDD/_Scripts/GameData/GameLocalizationData.cs

using UnityEngine;
using UnityEngine.Localization.SmartFormat.PersistentVariables;

namespace DDD
{
    [CreateAssetMenu(fileName = "GameLocalizationData", menuName = "GameData/GameLocalizationData")]
    public class GameLocalizationData : ScriptableObject
    {
        public VariablesGroupAsset SmartStringVariableGroup;
    }
}