✨ Finishing up stellar program

lib/models/wallet.g.dart

@@ -106,24 +106,30 @@ _SnWalletSubscription _$SnWalletSubscriptionFromJson(
 ) => _SnWalletSubscription(
   id: json['id'] as String,
   begunAt: DateTime.parse(json['begun_at'] as String),
-  endedAt: DateTime.parse(json['ended_at'] as String),
+  endedAt:
+      json['ended_at'] == null
+          ? null
+          : DateTime.parse(json['ended_at'] as String),
   identifier: json['identifier'] as String,
-  isActive: json['is_active'] as bool,
-  isFreeTrial: json['is_free_trial'] as bool,
-  status: (json['status'] as num).toInt(),
-  paymentMethod: json['payment_method'] as String,
-  paymentDetails: json['payment_details'] as Map<String, dynamic>,
-  basePrice: (json['base_price'] as num).toDouble(),
+  isActive: json['is_active'] as bool? ?? true,
+  isFreeTrial: json['is_free_trial'] as bool? ?? false,
+  status: (json['status'] as num?)?.toInt() ?? 1,
+  paymentMethod: json['payment_method'] as String?,
+  paymentDetails: json['payment_details'] as Map<String, dynamic>?,
+  basePrice: (json['base_price'] as num?)?.toDouble(),
   couponId: json['coupon_id'] as String?,
   coupon: json['coupon'],
-  renewalAt: DateTime.parse(json['renewal_at'] as String),
+  renewalAt:
+      json['renewal_at'] == null
+          ? null
+          : DateTime.parse(json['renewal_at'] as String),
   accountId: json['account_id'] as String,
   account:
       json['account'] == null
           ? null
           : SnAccount.fromJson(json['account'] as Map<String, dynamic>),
-  isAvailable: json['is_available'] as bool,
-  finalPrice: (json['final_price'] as num).toDouble(),
+  isAvailable: json['is_available'] as bool? ?? true,
+  finalPrice: (json['final_price'] as num?)?.toDouble(),
   createdAt: DateTime.parse(json['created_at'] as String),
   updatedAt: DateTime.parse(json['updated_at'] as String),
   deletedAt:
@@ -137,7 +143,7 @@ Map<String, dynamic> _$SnWalletSubscriptionToJson(
 ) => <String, dynamic>{
   'id': instance.id,
   'begun_at': instance.begunAt.toIso8601String(),
-  'ended_at': instance.endedAt.toIso8601String(),
+  'ended_at': instance.endedAt?.toIso8601String(),
   'identifier': instance.identifier,
   'is_active': instance.isActive,
   'is_free_trial': instance.isFreeTrial,
@@ -147,7 +153,7 @@ Map<String, dynamic> _$SnWalletSubscriptionToJson(
   'base_price': instance.basePrice,
   'coupon_id': instance.couponId,
   'coupon': instance.coupon,
-  'renewal_at': instance.renewalAt.toIso8601String(),
+  'renewal_at': instance.renewalAt?.toIso8601String(),
   'account_id': instance.accountId,
   'account': instance.account?.toJson(),
   'is_available': instance.isAvailable,