Added snippet showing how to log adapter status after sdk initialization.

PiperOrigin-RevId: 789444074

Author: nventimigli

samples/HelloWorld/Assets/Snippets/MediationSnippets.cs

@@ -0,0 +1,36 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using GoogleMobileAds.Api;
+
+namespace GoogleMobileAds.Snippets
+{
+    internal class MediationSnippets
+    {
+        void Initialize()
+        {
+            // [START initialize_sdk]
+            MobileAds.Initialize((InitializationStatus initializationStatus) =>
+            {
+                Dictionary<string, AdapterStatus> map = initializationStatus.getAdapterStatusMap();
+                foreach (KeyValuePair<string, AdapterStatus> keyValuePair in map)
+                {
+                    string className = keyValuePair.Key;
+                    AdapterStatus status = keyValuePair.Value;
+                    switch (status.InitializationState)
+                    {
+                        case AdapterState.NotReady:
+                            // The adapter initialization did not complete.
+                            Debug.Log($"Adapter: {className} is not ready.");
+                            break;
+                        case AdapterState.Ready:
+                            // The adapter was successfully initialized.
+                            Debug.Log($"Adapter: {className} is initialized.");
+                            break;
+                    }
+                }
+            });
+            // [END initialize_sdk]
+        }
+    }
+}