Hello, could you help me with the script below, my error code sounds like thisThe type or namespace name 'IRewardedVideoAdListener' could not be found (are you missing a using directive or an assembly reference?)

[Bohdan2131]

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using AppodealAds.Monetization.Api;
using AppodealAds.Monetization.Common;

public class AdsManager : MonoBehaviour, IAppodealInitializationListener, IInterstitialAdListener, IRewardedVideoAdListener
{
    public static AdsManager Instance;

    private const string AppKey = "";  
    public int BonusesIndex;
    private int count;
    public bool videoFinished;
    double rewardAmount;
    string rewardName;

    private void Start()
    {
        Instance = this;
        videoFinished = false;
        DontDestroyOnLoad(this);
        count = 0;
        int adTypes = AppodealAdType.Interstitial | AppodealAdType.Banner | AppodealAdType.RewardedVideo | AppodealAdType.Mrec;
        Appodeal.Initialize(AppKey, adTypes, this);
        Appodeal.SetRewardedVideoCallbacks(this);
        Appodeal.Cache(AppodealAdType.Interstitial);
        Appodeal.Cache(AppodealAdType.RewardedVideo);
    }
    public void OnInitializationFinished(List<string> errors) { }


    void Update()
    {
        if (videoFinished)
        {
            Bonuses.Instance.AdShown(BonusesIndex);
            //logic collected bonuses
            videoFinished = false;
        }
    }

    private void Initialize(bool isTesting)
    {
        
        Appodeal.setTesting(isTesting);
        Appodeal.muteVideosIfCallsMuted(true);
        //Appodeal.disableWriteExternalStoragePermissionCheck();
        Appodeal.disableLocationPermissionCheck();
        Appodeal.initialize(APP_KEY, Appodeal.INTERSTITIAL | Appodeal.REWARDED_VIDEO);
        Appodeal.setRewardedVideoCallbacks(this);
        
    }
    
    public void ShowInterstitial()
    {
        count++;
        if (count == 5)
        {
            if (Appodeal.IsLoaded(AppodealAdType.Interstitial))
                Appodeal.Show(AppodealShowStyle.Interstitial);
            count = 0;
        }
    }

    public void ShowRewarded(int index)
    {
        Debug.Log("ShowRewarded" + index);
        BonusesIndex = index;
        if (Appodeal.IsLoaded(AppodealAdType.RewardedVideo))
            Appodeal.Show(AppodealShowStyle.RewardedVideo);
    }

    #region Interstitial
    public void onInterstitialClicked()
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialClosed()
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialExpired()
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialFailedToLoad()
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialLoaded(bool isPrecache)
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialShowFailed()
    {
        throw new System.NotImplementedException();
    }

    public void onInterstitialShown()
    {
        throw new System.NotImplementedException();
    }
    #endregion


    #region Rewarded
    public void OnRewardedVideoLoaded(bool isPrecache)
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoFailedToLoad()
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoShowFailed()
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoShown()
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoFinished(double amount, string currency)
    {
        rewardAmount = amount;
        rewardName = currency;
        videoFinished = true;
    }

    public void OnRewardedVideoClosed(bool finished)
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoExpired()
    {
        throw new System.NotImplementedException();
    }

    public void OnRewardedVideoClicked()
    {
        throw new System.NotImplementedException();
    }

    #endregion

    #region Interstitial
    public void OnInterstitialLoaded(bool isPrecache)
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialFailedToLoad()
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialShowFailed()
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialShown()
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialClosed()
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialClicked()
    {
        throw new System.NotImplementedException();
    }

    public void OnInterstitialExpired()
    {
        throw new System.NotImplementedException();
    }

    #endregion
}