How to get Firebase RemoteConfig Parameters in unity

Question

I want to get enter image description here this parameter. I'm trying to do this with this code FirebaseRemoteConfig.GetInstance(Firebase.FirebaseApp.DefaultInstance).GetValue("VERSION").ToString() but it's returns nothing. Also i've tryed get it with FirebaseRemoteConfig.DefaultInstance.GetValue but i have same result.

using UnityEngine;
using UnityEngine.SceneManagement;
using Firebase.RemoteConfig;

public class GameOpening : MonoBehaviour
{
    Firebase.DependencyStatus dependencyStatus = Firebase.DependencyStatus.UnavailableOther;
    // Use this for initialization
    void Start()
    {
        Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task => {
            dependencyStatus = task.Result;
            if (dependencyStatus == Firebase.DependencyStatus.Available)
            {
                
                Debug.Log(FirebaseRemoteConfig.DefaultInstance.GetValue("VERSION"));

            }
            else
            {
                Debug.LogError(
                    "Could not resolve all Firebase dependencies: " + dependencyStatus);
            }
        });
    }

    
}