id stringlengths 11 41 | messages listlengths 3 3 | metadata unknown | source unknown | split stringclasses 1
value | split_origin stringclasses 4
values | task_type stringclasses 7
values |
|---|---|---|---|---|---|---|
synth_refactor_3104_0211 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/scroll_view/list_view.0.dart' as example;\n... | {
"accepted_by": "synthetic_generation",
"code_len": 2224,
"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": "104",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3314_0212 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:js_interop';\ndouble get performanceTimestamp => 1000 * _performance.now();\n@JS()\n@staticInterop\nclass _DomPerfo... | {
"accepted_by": "synthetic_generation",
"code_len": 286,
"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": "114",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_852_0213 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport '../../gallery/demo.dart';\nclass ElevationDemo extends StatefulWidget {\n cons... | {
"accepted_by": "synthetic_generation",
"code_len": 1495,
"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": "52",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2740_0214 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/dialog/show_dialog.1.dart' as example;\nim... | {
"accepted_by": "synthetic_generation",
"code_len": 710,
"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_2601_2800_eng.csv",
"original_row": "140",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2980_0215 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:async';\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/async/stream_builder.... | {
"accepted_by": "synthetic_generation",
"code_len": 3091,
"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": "180",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1347_0216 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert' show json;\nimport 'dart:io';\nimport 'localizations_utils.dart';\nconst List<String> kPluralSuffixes = <S... | {
"accepted_by": "synthetic_generation",
"code_len": 6042,
"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": "147",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_771_0217 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert';\nimport 'package:android_driver_extensions/native_driver.dart';\nimport 'package:android_driver_extension... | {
"accepted_by": "synthetic_generation",
"code_len": 1419,
"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": "171",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2988_0218 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/basic/aspect_ratio.1.dart' as example;\nimp... | {
"accepted_by": "synthetic_generation",
"code_len": 682,
"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": "188",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_249_0219 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport '../common.dart';\nimport 'bui... | {
"accepted_by": "synthetic_generation",
"code_len": 530,
"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_201_400_eng.csv",
"original_row": "49",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3888_0220 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'framework.dart';\nclass Preview {\n const Preview();\n}\nclass WidgetPreview {\n const WidgetPreview({\n ... | {
"accepted_by": "synthetic_generation",
"code_len": 347,
"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_3801_4000_eng.csv",
"original_row": "88",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3985_0221 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:io';\nimport 'dart:isolate';\nimport 'package:file/file.dart';\nimport 'package:file/local.dart';\nimport 'package:... | {
"accepted_by": "synthetic_generation",
"code_len": 5311,
"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": "185",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2733_0222 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/date_picker/show_date_picker.1.dart' as ex... | {
"accepted_by": "synthetic_generation",
"code_len": 1203,
"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": "133",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2128_0223 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const PointerSignalResol... | {
"accepted_by": "synthetic_generation",
"code_len": 3253,
"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": "128",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_133_0224 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:math' as math;\nimport 'dart:typed_data';\nimport 'package:flutter/widgets.dart';\nimport 'recorder.dart';\nconst L... | {
"accepted_by": "synthetic_generation",
"code_len": 3548,
"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": "133",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1069_0225 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport '../../gallery_localizations.dart';\nimport 'formatters.dart';\ndouble sumAccoun... | {
"accepted_by": "synthetic_generation",
"code_len": 9542,
"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": "69",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_657_0226 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport... | {
"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_601_800_eng.csv",
"original_row": "57",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2447_0227 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const ClipRRectApp());\nclass ClipRRectApp extends StatelessWidge... | {
"accepted_by": "synthetic_generation",
"code_len": 1898,
"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": "47",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_214_0228 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:macrobenchmarks/common.dart';\nimport 'util.dart';\nvoid m... | {
"accepted_by": "synthetic_generation",
"code_len": 784,
"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_201_400_eng.csv",
"original_row": "14",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3933_0229 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n testWidgets('test i... | {
"accepted_by": "synthetic_generation",
"code_len": 19128,
"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_3801_4000_eng.csv",
"original_row": "133",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2451_0230 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const ExpandedApp());\nclass ExpandedApp extends StatelessWidget ... | {
"accepted_by": "synthetic_generation",
"code_len": 838,
"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_2401_2600_eng.csv",
"original_row": "51",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_107_0231 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:math';\nimport 'package:flutter/material.dart';\nclass CubicBezierPage extends StatelessWidget {\n const CubicBezi... | {
"accepted_by": "synthetic_generation",
"code_len": 9584,
"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": "107",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2744_0232 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/divider/vertical_divider.0.dart' as exampl... | {
"accepted_by": "synthetic_generation",
"code_len": 682,
"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_2601_2800_eng.csv",
"original_row": "144",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_82_0233 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/scheduler.dart' show timeDilation;\nenum ScrollMode { complex, ... | {
"accepted_by": "synthetic_generation",
"code_len": 21582,
"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_1_200_eng.csv",
"original_row": "82",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_752_0234 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert';\nimport 'package:android_driver_extensions/extension.dart';\nimport 'package:flutter/foundation.dart';\ni... | {
"accepted_by": "synthetic_generation",
"code_len": 3219,
"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_601_800_eng.csv",
"original_row": "152",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_594_0235 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport... | {
"accepted_by": "synthetic_generation",
"code_len": 824,
"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": "194",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4373_0236 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:ui';\nimport 'package:flutter/scheduler.dart';\nimport 'package:flutter/widgets.dart';\nimport 'package:flutter_tes... | {
"accepted_by": "synthetic_generation",
"code_len": 2546,
"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": "173",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_46_0237 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:a11y_assessments/use_cases/switch_list_tile.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flu... | {
"accepted_by": "synthetic_generation",
"code_len": 696,
"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_1_200_eng.csv",
"original_row": "46",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2369_0238 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() {\n runApp(const ToggleButtonsApp());\n}\nclass ToggleButtonsApp extends S... | {
"accepted_by": "synthetic_generation",
"code_len": 2591,
"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": "169",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3461_0239 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'dart:ui' show lerpDouble;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/rendering.dart';... | {
"accepted_by": "synthetic_generation",
"code_len": 9985,
"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": "61",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_706_0240 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:async';\nimport 'dart:convert';\nimport 'dart:io';\nimport 'package:path/path.dart' as path;\nimport '../framework/... | {
"accepted_by": "synthetic_generation",
"code_len": 5390,
"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": "106",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_428_0241 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:async';\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/fr... | {
"accepted_by": "synthetic_generation",
"code_len": 379,
"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": "28",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3728_0242 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:js_interop';\nimport 'dart:ui_web' as ui_web;\nimport 'package:flutter/rendering.dart';\nimport '../web.dart' as we... | {
"accepted_by": "synthetic_generation",
"code_len": 3882,
"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": "128",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2508_0243 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const TransformationControllerExampleApp());\nclass Transformatio... | {
"accepted_by": "synthetic_generation",
"code_len": 3236,
"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": "108",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3927_0244 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n testWidgets('shows ... | {
"accepted_by": "synthetic_generation",
"code_len": 15776,
"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_3801_4000_eng.csv",
"original_row": "127",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3347_0245 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nbool debugPrintHitTestResults = false;\nbool debugPrintMouseHoverEvents = f... | {
"accepted_by": "synthetic_generation",
"code_len": 583,
"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_3201_3400_eng.csv",
"original_row": "147",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_641_0246 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'package:flutter_devicelab/tasks/plugin_tests.dart';\nFutur... | {
"accepted_by": "synthetic_generation",
"code_len": 452,
"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_601_800_eng.csv",
"original_row": "41",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4380_0247 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/semantics.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'package:leak_tracker_flutter... | {
"accepted_by": "synthetic_generation",
"code_len": 3685,
"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": "180",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3694_0248 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert';\nimport 'dart:typed_data';\nimport 'package:flutter/foundation.dart' show ReadBuffer, WriteBuffer;\nimpor... | {
"accepted_by": "synthetic_generation",
"code_len": 12343,
"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": "94",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_782_0249 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert';\nimport 'package:meta/meta.dart';\nimport 'constants.dart';\nclass AndroidSemanticsNode {\n AndroidSeman... | {
"accepted_by": "synthetic_generation",
"code_len": 3122,
"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": "182",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2800_0250 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/material_state/material_state_outlined_bor... | {
"accepted_by": "synthetic_generation",
"code_len": 1344,
"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": "200",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1125_0251 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'package:gallery/themes/materi... | {
"accepted_by": "synthetic_generation",
"code_len": 901,
"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_1001_1200_eng.csv",
"original_row": "125",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_520_0252 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport... | {
"accepted_by": "synthetic_generation",
"code_len": 313,
"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": "120",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2332_0253 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const SelectionAreaSel... | {
"accepted_by": "synthetic_generation",
"code_len": 4264,
"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": "132",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2335_0254 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const SelectionContainerDisabledExampleApp());\nclass SelectionCo... | {
"accepted_by": "synthetic_generation",
"code_len": 835,
"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": "135",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4132_0255 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('MaterialStateP... | {
"accepted_by": "synthetic_generation",
"code_len": 3809,
"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": "132",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2651_0256 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_api_samples/cupertino/route/show_cupertino_dialog.0.dart' as e... | {
"accepted_by": "synthetic_generation",
"code_len": 687,
"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_2601_2800_eng.csv",
"original_row": "51",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3235_0257 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_test/flutter_test.dart';\nimport 'package:texture/main.dart' as texture;\nvoid main() {\n testWidgets('... | {
"accepted_by": "synthetic_generation",
"code_len": 283,
"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_3201_3400_eng.csv",
"original_row": "35",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3494_0258 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'dart:ui' show lerpDouble;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/rendering.dart';... | {
"accepted_by": "synthetic_generation",
"code_len": 5888,
"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": "94",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2944_0259 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/ui/text/font_feature.font_feature_contextual_altern... | {
"accepted_by": "synthetic_generation",
"code_len": 706,
"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": "144",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3878_0260 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/animation.dart';\nimport 'framework.dart';\nimport 'implicit_animations.dart';\nimport 'value_... | {
"accepted_by": "synthetic_generation",
"code_len": 1668,
"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": "78",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_956_0261 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const MyApp());\nclass MyApp extends StatelessWidget {\n const M... | {
"accepted_by": "synthetic_generation",
"code_len": 1357,
"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": "156",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3996_0262 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('Parses line'... | {
"accepted_by": "synthetic_generation",
"code_len": 31839,
"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": "196",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4318_0263 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:ui' as ui;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/rendering.dart';\nimport 'package:fl... | {
"accepted_by": "synthetic_generation",
"code_len": 1512,
"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": "118",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_65_0264 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter_test/flutter_test.dart';\nclass TestTestBinding extends Autom... | {
"accepted_by": "synthetic_generation",
"code_len": 610,
"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": "65",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_958_0265 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvoid main... | {
"accepted_by": "synthetic_generation",
"code_len": 1976,
"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": "158",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3431_0266 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'material_localizations.dart';\nabstract final class DateUtils {\n ... | {
"accepted_by": "synthetic_generation",
"code_len": 2491,
"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": "31",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2534_0267 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const PageApiExampleApp());\nclass PageApiExampleApp extends Stat... | {
"accepted_by": "synthetic_generation",
"code_len": 3935,
"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": "134",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3183_0268 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/rendering.dart';\nimport 'src/binding.dart';\nimport 'src/solid_color_box.dart';\nvoid main() {\n final... | {
"accepted_by": "synthetic_generation",
"code_len": 3859,
"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": "183",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1143_0269 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_driver/driver_extension.dart';\nvoid main() {\n enableFlutterD... | {
"accepted_by": "synthetic_generation",
"code_len": 302,
"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_1001_1200_eng.csv",
"original_row": "143",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1216_0270 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:test/test.dart' hide TypeMatcher, isInstanceOf;\nvoid main... | {
"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"
],
"merged_at": "... | {
"derived_from": "flutter_code_with_questions_1201_1400_eng.csv",
"original_row": "16",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2641_0271 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter_api_samples/cupertino/nav_bar/cupertino_navigation_bar.0.dart'... | {
"accepted_by": "synthetic_generation",
"code_len": 688,
"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_2601_2800_eng.csv",
"original_row": "41",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_592_0272 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_devicelab/framework/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport... | {
"accepted_by": "synthetic_generation",
"code_len": 343,
"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": "192",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_235_0273 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/foundation.dart';\nimport '../common.dart';\nconst int _kNumIterations = 10000;\nFuture<void> execute() ... | {
"accepted_by": "synthetic_generation",
"code_len": 1320,
"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": "35",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3349_0274 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'velocity_tracker.dart';\nexport 'dart:ui' show Offset, PointerDevic... | {
"accepted_by": "synthetic_generation",
"code_len": 2539,
"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": "149",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2573_0275 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nvoid main() => runApp(const ShortcutsExampleAp... | {
"accepted_by": "synthetic_generation",
"code_len": 2574,
"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": "173",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2978_0276 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_api_samples/widgets/app_lifecycle_listener/app_lifecycle_listener.1.dart'\n as example;\nimport 'pack... | {
"accepted_by": "synthetic_generation",
"code_len": 692,
"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_2801_3000_eng.csv",
"original_row": "178",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3649_0277 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'box.dart';\nimport 'sliver.dart';\nimport 'sliver_multi_box_adaptor... | {
"accepted_by": "synthetic_generation",
"code_len": 8234,
"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": "49",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3517_0278 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/services.dart';\nimport 'package:flutter/widgets.dart';\nimport 'app_bar.dart';\nimport 'app_b... | {
"accepted_by": "synthetic_generation",
"code_len": 10511,
"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": "117",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4017_0279 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'gesture_tester.dart';\nvoid m... | {
"accepted_by": "synthetic_generation",
"code_len": 4432,
"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": "17",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2587_0280 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const TreeSliverExampleApp());\nclass TreeSliverExampleApp extend... | {
"accepted_by": "synthetic_generation",
"code_len": 2610,
"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": "187",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2815_0281 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/navigation_rail/navigation_rail.extended_a... | {
"accepted_by": "synthetic_generation",
"code_len": 2210,
"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": "15",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_927_0282 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_gallery/demo/material/menu_demo.dart';\nimport 'package:flutter... | {
"accepted_by": "synthetic_generation",
"code_len": 1652,
"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": "127",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3525_0283 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/painting.dart';\nconst Map<int, List<BoxShadow>> kElevationToShadow =\n _elevationToShadow;... | {
"accepted_by": "synthetic_generation",
"code_len": 4248,
"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": "125",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2557_0284 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const ScrollMetricsDemo());\nclass ScrollMetricsDemo extends Stat... | {
"accepted_by": "synthetic_generation",
"code_len": 1379,
"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": "157",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2315_0285 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const ShowSnackBarExampleApp());\nclass ShowSnackBarExampleApp ex... | {
"accepted_by": "synthetic_generation",
"code_len": 839,
"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": "115",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3991_0286 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\n@TestOn('chrome')\nlibrary;\nimport 'dart:ui_web' as ui_web;\nimport 'package:flutter/foundation.dart' show TargetPlatform, defa... | {
"accepted_by": "synthetic_generation",
"code_len": 771,
"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": "191",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_417_0287 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:io';\nimport 'package:file/local.dart';\nimport 'package:flutter_devicelab/framework/dependency_smoke_test_task_def... | {
"accepted_by": "synthetic_generation",
"code_len": 1308,
"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": "17",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2879_0288 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/slider/slider.0.dart' as example;\nimport ... | {
"accepted_by": "synthetic_generation",
"code_len": 1652,
"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": "79",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2206_0289 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const DropdownButtonApp());\nclass DropdownButtonApp extends Stat... | {
"accepted_by": "synthetic_generation",
"code_len": 1666,
"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": "6",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2843_0290 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/gestures.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/material/r... | {
"accepted_by": "synthetic_generation",
"code_len": 972,
"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": "43",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_109_0291 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:ui' as ui;\nimport 'package:flutter/material.dart';\nFuture<ui.Image> loadImage(String asset) async {\n final ui.I... | {
"accepted_by": "synthetic_generation",
"code_len": 3516,
"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": "109",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1061_0292 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport '../../data/gallery_options.dart';\nimport '../../gallery_localizations.dart';\n... | {
"accepted_by": "synthetic_generation",
"code_len": 5163,
"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": "61",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2112_0293 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nvoid main() => runApp(const ModalPopupApp());\nclass ModalPopupApp extends StatelessWi... | {
"accepted_by": "synthetic_generation",
"code_len": 1650,
"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": "112",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2484_0295 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/material.dart';\nvoid main() {\n ErrorWidget.builder = (Flut... | {
"accepted_by": "synthetic_generation",
"code_len": 1688,
"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": "84",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1129_0296 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:async';\nimport 'package:flutter/material.dart';\nimport 'package:flutter_driver/driver_extension.dart';\nimport 's... | {
"accepted_by": "synthetic_generation",
"code_len": 1570,
"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": "129",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_215_0297 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter_driver/flutter_driver.dart';\nimport 'package:macrobenchmarks/common.dart';\nimport 'util.dart';\nvoid m... | {
"accepted_by": "synthetic_generation",
"code_len": 873,
"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_201_400_eng.csv",
"original_row": "15",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1987_0298 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:convert';\nimport 'package:meta/meta.dart';\nimport '../typed_json.dart';\nimport 'target_platform.dart';\n@immutab... | {
"accepted_by": "synthetic_generation",
"code_len": 1095,
"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": "187",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2442_0299 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nvoid main() => runApp(const AutofillGroupExampleApp());\nclass AutofillGroupExampleApp ... | {
"accepted_by": "synthetic_generation",
"code_len": 3342,
"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": "42",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1038_0300 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/cupertino.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutter/services.dart';\nimpo... | {
"accepted_by": "synthetic_generation",
"code_len": 22622,
"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_1001_1200_eng.csv",
"original_row": "38",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_29_0301 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:a11y_assessments/use_cases/app_bar.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport 'test_utils.... | {
"accepted_by": "synthetic_generation",
"code_len": 315,
"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": "29",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3030_0302 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/gesture_detector/gesture_detector.2.dart' a... | {
"accepted_by": "synthetic_generation",
"code_len": 3479,
"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": "30",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3446_0303 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'dart:math' as math;\nimport 'package:flutter/rendering.dart';\nimport 'package:flutter/services.dart';\nimport... | {
"accepted_by": "synthetic_generation",
"code_len": 34193,
"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": "46",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2956_0304 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/ui/text/font_feature.font_feature_scientific_inferi... | {
"accepted_by": "synthetic_generation",
"code_len": 684,
"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": "156",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_4394_0305 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/services.dart';\nimport 'package:flutter_test/flutter_test.dart';\nimport '../widgets/clipboard_utils.da... | {
"accepted_by": "synthetic_generation",
"code_len": 1502,
"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": "194",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_317_0306 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:io';\nimport 'package:path/path.dart' as path;\nimport '../utils.dart';\nFuture<void> androidPreviewIntegrationTool... | {
"accepted_by": "synthetic_generation",
"code_len": 766,
"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": "117",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1104_0308 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/widgets.dart';\nimport '../../../gallery_localizations.dart';\nimport 'product.dart';\nclass ProductsRep... | {
"accepted_by": "synthetic_generation",
"code_len": 10752,
"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": "104",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_2410_0309 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/widgets.dart';\nvoid main() => runApp(const ExampleApp());\nclass ExampleApp extends StatelessWidget {\n... | {
"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": "10",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3129_0310 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'package:flutter/material.dart';\nimport 'package:flutter_api_samples/widgets/sliver/sliver_opacity.1.dart' as example;\n... | {
"accepted_by": "synthetic_generation",
"code_len": 642,
"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_3001_3200_eng.csv",
"original_row": "129",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_3548_0311 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nlibrary;\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/widgets.dart';\nimport 'theme.dart';\nimport 'typog... | {
"accepted_by": "synthetic_generation",
"code_len": 18899,
"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": "148",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
synth_refactor_1612_0312 | [
{
"content": "You are a Flutter and Dart coding assistant.",
"role": "system"
},
{
"content": "Refactor this Flutter code for better null safety and performance:\n```dart\nimport 'dart:js_interop';\nimport '../dom.dart';\nconst Set<int> _kNewlines = <int>{\n 0x000A,\n 0x000B,\n 0x000C,\n 0x000D,... | {
"accepted_by": "synthetic_generation",
"code_len": 2937,
"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": "12",
"status": "P2_synthetic",
"synth_method": "template_refactor",
"type": "synthetic"
} | train | train | refactor |
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