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synth_bug_fix_2531_0185
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(OverlayPortalExampleApp());\nclass OverlayPortalExampleApp extends StatelessWidget {\n c...
{ "accepted_by": "synthetic_generation", "code_len": 1427, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2401_2600_eng.csv", "original_row": "131", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_111_0186
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:ui' as ui;\nimport 'package:flutter/material.dart';\nFuture<ui.Image> loadImage(String asset) async {\n final ui.ImmutableBuffer buffer = ...
{ "accepted_by": "synthetic_generation", "code_len": 3340, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "111", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3898_0187
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/widgets.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('Animation created from ValueListenable'...
{ "accepted_by": "synthetic_generation", "code_len": 2176, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3801_4000_eng.csv", "original_row": "98", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1622_0188
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:math' as math;\nimport 'dart:typed_data';\nimport 'package:ui/ui.dart' as ui;\nimport 'util.dart';\nclass Matrix4 {\n factory Matrix4(\n ...
{ "accepted_by": "synthetic_generation", "code_len": 33359, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from...
{ "derived_from": "flutter_code_with_questions_1601_1800_eng.csv", "original_row": "22", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4372_0189
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/scheduler.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('debugAssertAllSchedulerVarsUnset cont...
{ "accepted_by": "synthetic_generation", "code_len": 740, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_4201_4400_eng.csv", "original_row": "172", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_33_0190
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:a11y_assessments/use_cases/check_box_list_tile.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'test_utils.dart';\nvoid...
{ "accepted_by": "synthetic_generation", "code_len": 762, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "33", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_465_0191
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 540, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "65", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_408_0192
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:args/args.dart';\nimport 'package:file/local.dart';\nimport 'package:glob/glob.dart';\nimport 'package:path/path.dart...
{ "accepted_by": "synthetic_generation", "code_len": 4718, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "8", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1603_0193
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n@DefaultAsset('skwasm')\nlibrary skwasm_impl;\nimport 'dart:ffi';\nimport 'package:ui/src/engine/skwasm/skwasm_impl.dart';\nvar class RawTextStyle exten...
{ "accepted_by": "synthetic_generation", "code_len": 4491, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1601_1800_eng.csv", "original_row": "3", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_188_0195
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/widgets.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'package:integration_test/integration_test.dart';\nimpo...
{ "accepted_by": "synthetic_generation", "code_len": 2916, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "188", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2483_0196
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/rendering.dart';\nvoid main() {\n runApp(BuildOwnerExample());\n}\nclass BuildOwnerExa...
{ "accepted_by": "synthetic_generation", "code_len": 1815, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2401_2600_eng.csv", "original_row": "83", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4040_0197
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter/se...
{ "accepted_by": "synthetic_generation", "code_len": 16809, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materi...
{ "derived_from": "flutter_code_with_questions_4001_4200_eng.csv", "original_row": "40", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3598_0198
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:ui' as ui show PlaceholderAlignment;\nimport 'package:flutter/foundation.dart';\nimport 'basic_types.dart';\nimport 'inline_span....
{ "accepted_by": "synthetic_generation", "code_len": 1433, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "198", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2178_0200
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(ChipApp());\nclass ChipApp extends StatelessWidget {\n const ChipApp({super.key});\n ...
{ "accepted_by": "synthetic_generation", "code_len": 1705, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2001_2200_eng.csv", "original_row": "178", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3416_0201
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:math' as math;\nimport 'package:collection/collection.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/...
{ "accepted_by": "synthetic_generation", "code_len": 38865, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": ...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "16", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1370_0202
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/foundation.dart' show debugDefaultTargetPlatformOverride;\nimport 'package:flutter_spin...
{ "accepted_by": "synthetic_generation", "code_len": 1079, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1201_1400_eng.csv", "original_row": "170", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4067_0203
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n@Tags(<String>['reduced-test-set'])\nlibrary;\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter...
{ "accepted_by": "synthetic_generation", "code_len": 14370, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materi...
{ "derived_from": "flutter_code_with_questions_4001_4200_eng.csv", "original_row": "67", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_813_0204
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvar RegExp ...
{ "accepted_by": "synthetic_generation", "code_len": 2311, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_801_1000_eng.csv", "original_row": "13", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4012_0205
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:ui' as ui;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter_test/flutter_test.d...
{ "accepted_by": "synthetic_generation", "code_len": 1410, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_4001_4200_eng.csv", "original_row": "12", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1888_0207
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:ui';\nimport 'package:test/test.dart';\nvoid main() {\n test('ViewConstraints.tight', () {\n var ViewConstraints ...
{ "accepted_by": "synthetic_generation", "code_len": 2907, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1801_2000_eng.csv", "original_row": "88", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3307_0208
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nbool get isCanvasKit {\n throw UnimplementedError('isCanvasKit is not implemented for dart:io.');\n}\nbool get isSkwasm {\n throw UnimplementedError('...
{ "accepted_by": "synthetic_generation", "code_len": 193, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from":...
{ "derived_from": "flutter_code_with_questions_3201_3400_eng.csv", "original_row": "107", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2929_0209
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_api_samples/sample_templates/cupertino.0.dart' as example;\nimport 'package:flutter_te...
{ "accepted_by": "synthetic_generation", "code_len": 381, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_cupertin...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "129", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1160_0210
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvoid main() {\n late FlutterDriv...
{ "accepted_by": "synthetic_generation", "code_len": 491, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "160", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_570_0211
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 320, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "170", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_582_0212
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 333, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "182", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3064_0213
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/navigator/restorable_route_future.0.dart' as example;\nimport 'pack...
{ "accepted_by": "synthetic_generation", "code_len": 2541, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "64", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2626_0214
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_api_samples/cupertino/activity_indicator/cupertino_activity_indicator.0.dart'\n as ...
{ "accepted_by": "synthetic_generation", "code_len": 1282, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_cuperti...
{ "derived_from": "flutter_code_with_questions_2601_2800_eng.csv", "original_row": "26", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3021_0215
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter/services.dart';\nimport 'package:flutter_api_samples/widgets/focus_scope/focus_scope.0.dart' as example;\nimport 'package:flut...
{ "accepted_by": "synthetic_generation", "code_len": 1539, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "21", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2955_0216
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/ui/text/font_feature.font_feature_proportional_figures.0.dart'\n as example;\nimport 'package:flutter_test/flut...
{ "accepted_by": "synthetic_generation", "code_len": 680, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_material...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "155", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3260_0217
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/widgets.dart';\nimport 'colors.dart';\nimport 'constants.dart';\nimport 'th...
{ "accepted_by": "synthetic_generation", "code_len": 12887, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": ...
{ "derived_from": "flutter_code_with_questions_3201_3400_eng.csv", "original_row": "60", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_589_0219
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:flutter_devicelab/framework/apk_utils.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'p...
{ "accepted_by": "synthetic_generation", "code_len": 7467, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "189", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_418_0220
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:file/local.dart';\nimport 'package:flutter_devicelab/framework/dependency_smoke_test_task_definition.dart';\nimport '...
{ "accepted_by": "synthetic_generation", "code_len": 1539, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "18", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2906_0221
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nimport 'package:flutter_api_samples/material/text_form_field/text_form...
{ "accepted_by": "synthetic_generation", "code_len": 1815, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "106", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2541_0222
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nvoid main() {\n runApp(RawMenuAnchorApp());\n}\nenum Animal {\n cat(...
{ "accepted_by": "synthetic_generation", "code_len": 5493, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2401_2600_eng.csv", "original_row": "141", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_644_0223
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:convert';\nimport 'dart:io';\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_dev...
{ "accepted_by": "synthetic_generation", "code_len": 3333, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_601_800_eng.csv", "original_row": "44", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1949_0224
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:convert' show LineSplitter, utf8;\nimport 'dart:io' as io;\nimport 'package:meta/meta.dart';\nimport 'package:path/path.dart' as path;\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 3536, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1801_2000_eng.csv", "original_row": "149", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1167_0225
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:path/path.dart' as path;\nimport 'package:test/test.dart' hide ...
{ "accepted_by": "synthetic_generation", "code_len": 1648, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "167", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4009_0226
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:ui' as ui;\nimport 'package:flutter/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nclass TestResult {\n bool dragStart...
{ "accepted_by": "synthetic_generation", "code_len": 3883, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_4001_4200_eng.csv", "original_row": "9", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4335_0227
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:ui' as ui;\nimport 'package:fake_async/fake_async.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:...
{ "accepted_by": "synthetic_generation", "code_len": 13370, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": ...
{ "derived_from": "flutter_code_with_questions_4201_4400_eng.csv", "original_row": "135", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3147_0228
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/widgets/transitions/decorated_box_transition.0.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';...
{ "accepted_by": "synthetic_generation", "code_len": 1914, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "147", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_861_0229
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport '../../gallery/demo.dart';\nclass MenuDemo extends StatefulWidget {\n MenuDemo({super.key});\n static ...
{ "accepted_by": "synthetic_generation", "code_len": 6805, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_801_1000_eng.csv", "original_row": "61", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4385_0230
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:typed_data';\nimport 'dart:ui' as ui;\nimport 'package:flutter/material.dart';\nimport 'package:flutter/semantics.dart';\nimport 'package:f...
{ "accepted_by": "synthetic_generation", "code_len": 8773, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_4201_4400_eng.csv", "original_row": "185", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1121_0231
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:google_fonts/google_fonts.dart';\nclass GalleryThemeData {\n static Color _lightFillColor = Co...
{ "accepted_by": "synthetic_generation", "code_len": 3413, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "121", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4028_0232
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n tes...
{ "accepted_by": "synthetic_generation", "code_len": 7271, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_4001_4200_eng.csv", "original_row": "28", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3228_0233
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nclass PlatformChannel extends StatefulWidget {\n...
{ "accepted_by": "synthetic_generation", "code_len": 2090, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3201_3400_eng.csv", "original_row": "28", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1959_0234
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:convert';\nimport 'dart:io' as io;\nimport 'package:engine_repo_tools/engine_repo_tools.dart';\nimport 'package:kernel/const_finder.dart';\...
{ "accepted_by": "synthetic_generation", "code_len": 11902, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from...
{ "derived_from": "flutter_code_with_questions_1801_2000_eng.csv", "original_row": "159", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_483_0235
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport '...
{ "accepted_by": "synthetic_generation", "code_len": 323, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "83", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3119_0236
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/widgets.dart';\nimport 'package:flutter_api_samples/widgets/single_child_scroll_view/single_child_scroll_view.0.dart'\n as ex...
{ "accepted_by": "synthetic_generation", "code_len": 1726, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "119", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3873_0237
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/rendering.dart';\nimport 'framework.dart';\nclass Texture extends LeafRenderObjectWidget {\n Texture({\n super.key,\n req...
{ "accepted_by": "synthetic_generation", "code_len": 700, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_3801_4000_eng.csv", "original_row": "73", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_587_0238
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 307, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "187", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3801_0240
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'framework.dart';\ntypedef NotificationListenerCallback<T extends Notification> = bool Funct...
{ "accepted_by": "synthetic_generation", "code_len": 1534, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3801_4000_eng.csv", "original_row": "1", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_79_0241
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n failingPendingTimerTest();\n}\nvoid failingPendingTimerTest() {...
{ "accepted_by": "synthetic_generation", "code_len": 287, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "79", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_566_0242
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 309, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "166", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1017_0244
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:math';\nimport 'package:animations/animations.dart';\nimport 'package:flutter/material.dart';\nimport '../../gallery_localizations.dart';\n...
{ "accepted_by": "synthetic_generation", "code_len": 5417, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "17", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2926_0245
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/rendering.dart';\nimport 'package:flutter_api_samples/rendering/scroll_direction/scroll...
{ "accepted_by": "synthetic_generation", "code_len": 1491, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "126", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3417_0246
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'package:flutter/cupertino.dart';\nimport 'checkbox_theme.dart';\nimport 'color_scheme.dart';\nimport 'colors.dart';\nimport 'constants...
{ "accepted_by": "synthetic_generation", "code_len": 23274, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_cupert...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "17", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3397_0247
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:math' as math;\nimport 'package:flutter/rendering.dart';\nimport 'package:flutter/widgets.dart';\nimport 'badge_theme.dart';\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 9496, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3201_3400_eng.csv", "original_row": "197", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1367_0248
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:ffi';\nimport 'dart:io';\nimport 'package:args/args.dart';\nimport 'package:meta/meta.dart';\nimport 'package:path/path.dart' as path;\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 41017, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from...
{ "derived_from": "flutter_code_with_questions_1201_1400_eng.csv", "original_row": "167", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2893_0249
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/material/switch_list_tile/custom_labeled_switch.1.dart'\n as example;\nimport 'package:flutter_test/flutter_tes...
{ "accepted_by": "synthetic_generation", "code_len": 659, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_material...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "93", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_406_0250
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:collection/collection.dart';\nimport 'package:meta/meta.dart';\n@immutable\nclass CustomerTest {\n factory CustomerT...
{ "accepted_by": "synthetic_generation", "code_len": 6356, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "6", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1008_0251
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport '../../gallery_localizations.dart';\nclass SnackbarsDemo extends StatelessWidget {\n SnackbarsDemo({sup...
{ "accepted_by": "synthetic_generation", "code_len": 1300, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "8", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2757_0252
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/material/expansion_tile/expansion_tile.0.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';\nvoid...
{ "accepted_by": "synthetic_generation", "code_len": 1183, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2601_2800_eng.csv", "original_row": "157", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_10_0253
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport '../utils.dart';\nimport 'use_cases.dart';\nclass DialogUseCase extends UseCase {\n String get name =...
{ "accepted_by": "synthetic_generation", "code_len": 2344, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "10", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2840_0254
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/material/refresh_indicator/refresh_indicator.2.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';...
{ "accepted_by": "synthetic_generation", "code_len": 857, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_material...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "40", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2106_0255
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/cupertino.dart';\nvoid main() => runApp(PageScaffoldApp());\nclass PageScaffoldApp extends StatelessWidget {\n const PageScaffo...
{ "accepted_by": "synthetic_generation", "code_len": 1325, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_cuperti...
{ "derived_from": "flutter_code_with_questions_2001_2200_eng.csv", "original_row": "106", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3189_0256
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/rendering.dart';\nimport 'src/binding.dart';\nList<Color> _kColors = <Color>[\n Colors...
{ "accepted_by": "synthetic_generation", "code_len": 2233, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "189", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2216_0257
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() {\n runApp(ExpansionTileAnimationStyleApp());\n}\nenum AnimationStyles { defaultStyle, custom, non...
{ "accepted_by": "synthetic_generation", "code_len": 2680, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2201_2400_eng.csv", "original_row": "16", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3019_0258
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nimport 'package:flutter_api_samples/widgets/focus_scope/focus.1.dart' ...
{ "accepted_by": "synthetic_generation", "code_len": 2784, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_3001_3200_eng.csv", "original_row": "19", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3911_0259
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/ma...
{ "accepted_by": "synthetic_generation", "code_len": 25875, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materi...
{ "derived_from": "flutter_code_with_questions_3801_4000_eng.csv", "original_row": "111", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3422_0260
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart' show clampDouble;\nimport 'package:flutter/widgets.dart';\nimport 'chip.dart';\nimport 'chip_theme.da...
{ "accepted_by": "synthetic_generation", "code_len": 8773, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "22", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_953_0261
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/scheduler.dart';\nimport 'package:flutter/widgets.dart';\nimport 'package:flutter_test/flutter_test.dart';\nFuture<void> main() ...
{ "accepted_by": "synthetic_generation", "code_len": 1506, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_801_1000_eng.csv", "original_row": "153", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1158_0262
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvoid main() {\n late FlutterDriv...
{ "accepted_by": "synthetic_generation", "code_len": 467, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "158", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2291_0263
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(RadioListTileApp());\nclass RadioListTileApp extends StatelessWidget {\n const RadioList...
{ "accepted_by": "synthetic_generation", "code_len": 1562, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2201_2400_eng.csv", "original_row": "91", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1420_0264
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:io';\nimport 'package:path/path.dart' as path;\nimport 'package:test_api/backend.dart';\nimport 'package:test_core/sr...
{ "accepted_by": "synthetic_generation", "code_len": 3001, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1401_1600_eng.csv", "original_row": "20", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_405_0265
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io' as io;\nimport 'package:path/path.dart' as p;\nvoid main(List<String> args) async {\n var String sha;\n if (args.isEmpty) {\n sha ...
{ "accepted_by": "synthetic_generation", "code_len": 1995, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "5", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3810_0266
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:math' as math;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/rendering.dart';\nimport 'framework.dart';\ncl...
{ "accepted_by": "synthetic_generation", "code_len": 1625, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3801_4000_eng.csv", "original_row": "10", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_419_0267
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_devicelab/tasks/android_lifecycles_test.dart';\nFuture<void> main(...
{ "accepted_by": "synthetic_generation", "code_len": 200, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "19", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2387_0268
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() {\n runApp(SampleApp());\n}\nclass SampleApp extends StatelessWidget {\n const SampleApp({super.k...
{ "accepted_by": "synthetic_generation", "code_len": 470, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_material...
{ "derived_from": "flutter_code_with_questions_2201_2400_eng.csv", "original_row": "187", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_384_0269
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:core' as $core;\nimport 'package:fixnum/fixnum.dart' as $fixnum;\nimport 'package:protobuf/protobuf.dart' as $pb;\nimport 'conductor_state....
{ "accepted_by": "synthetic_generation", "code_len": 18823, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from...
{ "derived_from": "flutter_code_with_questions_201_400_eng.csv", "original_row": "184", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_297_0270
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:io' as io;\nimport 'package:flutter_devicelab/framework/browser.dart';\nimport 'package:shelf/shelf.dart';\nimport 'p...
{ "accepted_by": "synthetic_generation", "code_len": 3331, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_201_400_eng.csv", "original_row": "97", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3344_0271
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:async';\nimport 'dart:collection';\nimport 'dart:ui' as ui show PointerDataPacket;\nimport 'package:flutter/foundation.dart';\nim...
{ "accepted_by": "synthetic_generation", "code_len": 11953, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": ...
{ "derived_from": "flutter_code_with_questions_3201_3400_eng.csv", "original_row": "144", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3516_0272
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:ui' show lerpDouble;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/widgets.dart';\nimport 'material_state.d...
{ "accepted_by": "synthetic_generation", "code_len": 6746, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "116", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3724_0273
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:js_interop';\ntypedef EventListener = JSFunction;\ntypedef XMLHttpRequestResponseType = String;\n@JS()\nexternal Document get doc...
{ "accepted_by": "synthetic_generation", "code_len": 3752, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_3601_3800_eng.csv", "original_row": "124", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_968_0274
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter/material.dart';\nimport 'package:flutter/scheduler.dart' show timeDilation;\nimport 'package:flutter/servi...
{ "accepted_by": "synthetic_generation", "code_len": 6356, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_801_1000_eng.csv", "original_row": "168", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3555_0276
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:ui' show lerpDouble;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/rendering.dart';\nimport 'package:flutte...
{ "accepted_by": "synthetic_generation", "code_len": 6984, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_3401_3600_eng.csv", "original_row": "155", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_503_0277
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_devicelab/framework/utils.dart';\nimport 'package:flutter_devicela...
{ "accepted_by": "synthetic_generation", "code_len": 401, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "103", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1132_0278
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvoid main() {\n group('channel s...
{ "accepted_by": "synthetic_generation", "code_len": 869, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1001_1200_eng.csv", "original_row": "132", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_454_0279
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport '...
{ "accepted_by": "synthetic_generation", "code_len": 332, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "54", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_451_0280
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 314, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "51", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1807_0281
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:typed_data';\nimport 'package:test/bootstrap/browser.dart';\nimport 'package:test/test.dart';\nimport 'package:ui/ui.dart' as ui;\nimport '...
{ "accepted_by": "synthetic_generation", "code_len": 4899, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1801_2000_eng.csv", "original_row": "7", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2911_0282
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n\nimport 'package:flutter_api_samples/material/toggle_buttons/toggle_buttons.0.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';\nvoid...
{ "accepted_by": "synthetic_generation", "code_len": 4102, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "111", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_715_0283
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:io';\nimport 'package:path/path.dart' as path;\nimport '../framework/devices.dart';\nimport '../framework/framework.d...
{ "accepted_by": "synthetic_generation", "code_len": 2089, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_601_800_eng.csv", "original_row": "115", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1925_0284
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io';\nimport 'package:args/args.dart';\nimport 'package:engine_repo_tools/engine_repo_tools.dart';\nimport 'package:git_repo_tools/git_repo...
{ "accepted_by": "synthetic_generation", "code_len": 3151, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_1801_2000_eng.csv", "original_row": "125", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_242_0285
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport '../common.dart';\nimport 'data/velocity_tracker_data....
{ "accepted_by": "synthetic_generation", "code_len": 1870, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "...
{ "derived_from": "flutter_code_with_questions_201_400_eng.csv", "original_row": "42", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_510_0286
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_device...
{ "accepted_by": "synthetic_generation", "code_len": 338, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_401_600_eng.csv", "original_row": "110", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3000_0287
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/basic/listener.0.dart' as ...
{ "accepted_by": "synthetic_generation", "code_len": 1097, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2801_3000_eng.csv", "original_row": "200", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3663_0288
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nlibrary;\nimport 'dart:async';\nimport 'dart:collection';\nimport 'dart:developer' show Flow, Timeline, TimelineTask;\nimport 'dart:ui'\n show\n ...
{ "accepted_by": "synthetic_generation", "code_len": 24916, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": ...
{ "derived_from": "flutter_code_with_questions_3601_3800_eng.csv", "original_row": "63", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2403_0289
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:flutter/widgets.dart';\nvoid main() => runApp(ExampleApp());\nclass ExampleApp extends StatelessWidget {\n const ExampleApp({super.key}...
{ "accepted_by": "synthetic_generation", "code_len": 700, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_2401_2600_eng.csv", "original_row": "3", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2082_0290
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:io' as io;\nimport 'package:path/path.dart' as pathlib;\nEnvironment get environment {\n return _environment ??= Environment();\n}\nEnviro...
{ "accepted_by": "synthetic_generation", "code_len": 3184, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question" ], "merged_at": "2026-07-11", "merged_from"...
{ "derived_from": "flutter_code_with_questions_2001_2200_eng.csv", "original_row": "82", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1253_0291
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:async';\nimport 'dart:io' as io;\nimport 'dart:typed_data';\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:matcher/...
{ "accepted_by": "synthetic_generation", "code_len": 547, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "merged_at": "2...
{ "derived_from": "flutter_code_with_questions_1201_1400_eng.csv", "original_row": "53", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix