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lib/features/auth/data/models/token_response.dart

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+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'token_response.freezed.dart';
+part 'token_response.g.dart';
+
+@freezed
+class TokenResponse with _$TokenResponse {
+  const factory TokenResponse({
+    @JsonKey(name: 'access_token') required String accessToken,
+    @JsonKey(name: 'refresh_token') required String refreshToken,
+    @JsonKey(name: 'token_type') @Default('bearer') String tokenType,
+  }) = _TokenResponse;
+
+  factory TokenResponse.fromJson(Map<String, dynamic> json) =>
+      _$TokenResponseFromJson(json);
+}