public static FirebaseAuth GetFirebaseAuth()
        {
            var app = FirebaseApp.InitializeApp(Application.Context);
            FirebaseFirestore database;
            FirebaseAuth      mAuth;

            if (app == null)
            {
                var options = new FirebaseOptions.Builder()
                              .SetProjectId("expense-tracker-app-a176f")
                              .SetApplicationId("expense-tracker-app-a176f")
                              .SetApiKey("AIzaSyD0HaWxjzluyG97Dcxf9C5d9MUHWmQaYgQ")
                              .SetDatabaseUrl("https://expense-tracker-app-a176f.firebaseio.com")
                              .SetStorageBucket("expense-tracker-app-a176f.appspot.com")
                              .Build();
                app      = FirebaseApp.InitializeApp(Application.Context, options);
                database = FirebaseFirestore.GetInstance(app);
                FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder().SetTimestampsInSnapshotsEnabled(true).Build();
                database.FirestoreSettings = settings;
                mAuth = FirebaseAuth.Instance;
            }
            else
            {
                database = FirebaseFirestore.GetInstance(app);
                FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder().SetTimestampsInSnapshotsEnabled(true).Build();
                database.FirestoreSettings = settings;
                mAuth = FirebaseAuth.Instance;
            }
            return(mAuth);
        }
        public static void Init(Android.Content.Context context)
        {
            var options = new FirebaseOptions.Builder()
                          .SetApplicationId("1:812309437328:android:25ce5624a3dfad6a55f115")
                          .SetApiKey("AIzaSyA8S9_ZKzmzRbebNsLOKxeBpI5r24-0D30")
                          .SetDatabaseUrl("https://authtrial-62711.firebaseio.com").SetProjectId("authtrial-62711").Build();

            app = Firebase.FirebaseApp.InitializeApp(context, options, AppName);
            FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder()
                                                 .SetPersistenceEnabled(true).Build();

            FirebaseFirestore.GetInstance(app).FirestoreSettings = settings;
        }