using UnityEngine;using UnityEngine.Advertisements;public class InterstitialAdExample : MonoBehaviour, IUnityAdsLoadListener, IUnityAdsShowListener{  [SerializeField] string _androidAdUnitId = "Interstitial_Android";  [SerializeField] string _iOSAdUnitId = "Interstitial_iOS";  string _adUnitId;  void Awake()  {    // Get the Ad Unit ID for the current platform:    _adUnitId = (Application.platform == RuntimePlatform.IPhonePlayer)    ? _iOSAdUnitId    : _androidAdUnitId;  }  // Load content to the Ad Unit:  public void LoadAd()  {    // IMPORTANT! Only load content AFTER initialization (in this example, initialization is handled in a different script).    Debug.Log("Loading Ad: " + _adUnitId);    Advertisement.Load(_adUnitId, this);  }  // Show the loaded content in the Ad Unit:  public void ShowAd()  {    // Note that if the ad content wasn't previously loaded, this method will fail    Debug.Log("Showing Ad: " + _adUnitId);    Advertisement.Show(_adUnitId, this);  }  // Implement Load Listener and Show Listener interface methods:   public void OnUnityAdsAdLoaded(string adUnitId)  {    // Optionally execute code if the Ad Unit successfully loads content.  }  public void OnUnityAdsFailedToLoad(string _adUnitId, UnityAdsLoadError error, string message)  {    Debug.Log($"Error loading Ad Unit: {_adUnitId} - {error.ToString()} - {message}");    // Optionally execute code if the Ad Unit fails to load, such as attempting to try again.  }  public void OnUnityAdsShowFailure(string _adUnitId, UnityAdsShowError error, string message)  {    Debug.Log($"Error showing Ad Unit {_adUnitId}: {error.ToString()} - {message}");    // Optionally execute code if the Ad Unit fails to show, such as loading another ad.  }  public void OnUnityAdsShowStart(string _adUnitId) { }  public void OnUnityAdsShowClick(string _adUnitId) { }  public void OnUnityAdsShowComplete(string _adUnitId, UnityAdsShowCompletionState showCompletionState) { }}