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seed_004370
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In the Flutter test environment, in order to evaluate the performance of a widget, the`testbutterBlutterbinding`class, which expanded the`testbetterbinding`class, confirming that certain operations occur d...
{ "accepted_by": "heuristic_keep", "code_len": 2013, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "170", "status": "P1_partial", "type": "seed" }
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seed_004371
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In order to test the order of execution of the`SchedulerBinding`class in Flutter, the order of managing time zoning, triggering compulsory frame drawing and processing permanent framework reconstruction, i...
{ "accepted_by": "heuristic_keep", "code_len": 1561, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "171", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004372
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, the purpose and use of the function of`debugasschedulellervarsunset`function, especially in the case of`Scheduler`library, such as`debugprintbeginframebanner`and`Debugprintendframebanner`, the ...
{ "accepted_by": "heuristic_keep", "code_len": 740, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question",...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "172", "status": "P1_partial", "type": "seed" }
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seed_004373
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, the performance mode management system applied through the`Requestperformancemode`method of the`SchedulerBinding`class in Flutter, including the prioritization, overlapping solution, resource m...
{ "accepted_by": "heuristic_keep", "code_len": 2546, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "173", "status": "P1_partial", "type": "seed" }
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seed_004374
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, in the event that`Schedulerpriority`enum members are manipulated by arithmetic processes and especially in the case of`priority.kmaxoffset`value, how can we confirm the expected behavior of the...
{ "accepted_by": "heuristic_keep", "code_len": 461, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question",...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "174", "status": "P1_partial", "type": "seed" }
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seed_004375
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "\"In order to test the timing mechanisms of Flutter, using the\" testschedulerBinding \"class, controlling the order of execution of tasks with different priorities, the effect of the calls of`Schedulewarm...
{ "accepted_by": "heuristic_keep", "code_len": 9458, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "175", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004376
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter applications, in the test environment, in order to confirm that animations and drawings are correctly processed, simulating the real time flow, enabling the ability to manually trigger and proce...
{ "accepted_by": "heuristic_keep", "code_len": 258, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "mentions_dart_question", "imports_flutter_code" ], "quality_flags": [ ...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "176", "status": "P1_partial", "type": "seed" }
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seed_004377
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In order to test and verify the behavior and interactions of the`Ticket`class (including start, stop, muting, application life cycle changes, time expansion and memory management) in Flutter, how can we di...
{ "accepted_by": "heuristic_keep", "code_len": 5634, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "177", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004378
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter applications, it is possible to directly change the`Timedilation'feature before the sample of`SchedulerBinding'is created and to confirm that this change is as effective as expected, and this is...
{ "accepted_by": "heuristic_keep", "code_len": 272, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question",...
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seed_004379
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In order to ensure that the`Customsemanticsaction'class in Flutter is represented by developers, the special semantic actions defined by developers are represented in a consistent and unique way, the`Custo...
{ "accepted_by": "heuristic_keep", "code_len": 977, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question",...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "179", "status": "P1_partial", "type": "seed" }
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seed_004380
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, the`Semanticsbinding'class, the activation of semantics with the method of`ensuresemantics`, the response of the`Semanticshandle'objects to the management of the semantics activation signals fr...
{ "accepted_by": "heuristic_keep", "code_len": 3685, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "180", "status": "P1_partial", "type": "seed" }
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seed_004381
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Flutter, intertwined material, card and physicalmodel widgets created by using a complex widget tree, the z axis Semanticsnode'lar Creation and Management (Especially Elevation, Thickness and Label feature...
{ "accepted_by": "heuristic_keep", "code_len": 8997, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code", "imports_material_code" ], "quality_flags": [ ...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "181", "status": "P1_partial", "type": "seed" }
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seed_004382
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, after the removal of a semantic node from the tree, a semanticsaction with an identity corresponding to this node.Showonscreen action is triggered, how to write a widget test that tests this sc...
{ "accepted_by": "heuristic_keep", "code_len": 1060, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code", "imports_material_code" ], "quality_flags": [ ...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "182", "status": "P1_partial", "type": "seed" }
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seed_004383
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Whether the accessibility announcements in Flutter are correctly transmitted through the Semantic Announments) platform channel, textdirection.ltr, textdirection.RTL) and importance levels (assertiveness.a...
{ "accepted_by": "heuristic_keep", "code_len": 1339, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "183", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004384
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Flutter's accessibility tree, which constitutes the \"Semanticsnode`and\" Semanticsconfiguration \"classes, labeling, processing text attributes, hierarchical merger behavior, visibility control, child lis...
{ "accepted_by": "heuristic_keep", "code_len": 41024, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "184", "status": "P1_partial", "type": "seed" }
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seed_004385
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In a scenario, which contains`Semantics`widgets`Semantics`widgets, which are intertwined with the Semantics tree used in Flutter for the purpose of accessibility,`Semantics`widgets with different features,...
{ "accepted_by": "heuristic_keep", "code_len": 8773, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code", "imports_material_code" ], "quality_flags": [ ...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "185", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004385_exp2
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Explain the following Flutter/Dart code in detail. Describe widgets, state management, and design rationale.\n\n```dart\nimport 'dart:typed_data';\nimport 'dart:ui' as ui;\nimport 'package:flutter/material...
{ "accepted_by": "heuristic_keep", "code_len": 8773, "difficulty": "unknown", "enriched_at": "2026-06-06", "enriched_from": "seed_004385", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutte...
{ "commit": null, "enriched_from": "seed_004385", "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "185", "status": "P1_partial", "type": "seed", "variant": "code_to_explanation" }
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seed_004386
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, in a grid structure of intertwined lines and columns, when there is a Semantics Widget containing a text label in each cell, the accessibility tree is correctly created and especially the trave...
{ "accepted_by": "heuristic_keep", "code_len": 2264, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code", "imports_material_code" ], "quality_flags": [ ...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "186", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004387
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, Cachingassetbundle class cache mechanisms (Loadstring, Loadstructurereddata, Loadstructurentruledbinydata Functions), Cache Clear function) and Removing certain items from the cache (EVICT Func...
{ "accepted_by": "heuristic_keep", "code_len": 9708, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "187", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004388
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter application, using a special`assetbundle`(eg`testassetbundle`), both in the format of the`. 1x and 2x versions for Assets/FOO.PNG) Asset manifest files that can correctly separate and separate, ...
{ "accepted_by": "heuristic_keep", "code_len": 2761, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "188", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004392
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "While designing an API (Browsercontextmenu class) that provides the functionality of activation and disabling the browser context menu (right -click menu) in Flutter web applications, this API has establis...
{ "accepted_by": "heuristic_keep", "code_len": 2794, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "192", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004393
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, the data sent to a platform channel using`ui.channelbuffers`as a asynchronous process through`defaultbinarymessenger`, and a comprehensive unit test that confirms the operation of a recalling f...
{ "accepted_by": "heuristic_keep", "code_len": 1324, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "193", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004394
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, it is written in Flutter, which encompasses access to the system panel through platform channels and tests the data writing and reading processes to this simulated panel, to verify`clipboard.Ge...
{ "accepted_by": "heuristic_keep", "code_len": 1502, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "194", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004395
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, while communicating with native code through platform channels, asynchronous messaging flow, especially`serviesbinding.instance.channelbuffers.push`and`servicesbinding.instance.defaultbinarymes...
{ "accepted_by": "heuristic_keep", "code_len": 1775, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "195", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004396
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In Flutter, the`DeFerredComponent`class, which performs the deferred components (DeFerred Components) as an asynchronous process, communicates with the platform -specific code using the`Systemchanneels.def...
{ "accepted_by": "heuristic_keep", "code_len": 1491, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question"...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "196", "status": "P1_partial", "type": "seed" }
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question_to_code
seed_004400
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "In the Flutter application, in order to test the upload and use of special fonts, it is a test class that expands the`fontloader`class and temporarily stores font data (`testfontloader`), and that the`ADDF...
{ "accepted_by": "heuristic_keep", "code_len": 833, "difficulty": "unknown", "final_v1_decision": "accept", "final_v1_split": "train", "heuristic_decision": "keep", "heuristic_reasons": [ "mentions_flutter_question", "imports_flutter_code" ], "quality_flags": [ "mentions_flutter_question",...
{ "commit": null, "license": null, "path": "flutter_code_with_questions_4201_4400_eng.csv", "repo": null, "row_in_file": "200", "status": "P1_partial", "type": "seed" }
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question_to_code
synth_bug_fix_654_0000
[ { "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": 308, "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": "54", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_129_0001
[ { "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';\nclass SimpleScroll extends StatelessWidget {\n SimpleScroll({super.key});\n Widget build(BuildContext conte...
{ "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", "imports_material...
{ "derived_from": "flutter_code_with_questions_1_200_eng.csv", "original_row": "129", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2162_0002
[ { "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(ButtonApp());\n}\nclass ButtonApp extends StatelessWidget {\n const ButtonApp({super.k...
{ "accepted_by": "synthetic_generation", "code_len": 1665, "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": "162", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1901_0003
[ { "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:typed_data';\nimport 'dart:ui';\nimport 'package:test/test.dart';\nvoid main() {\n test('window.sendPlatformMessage ...
{ "accepted_by": "synthetic_generation", "code_len": 3524, "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": "101", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_854_0005
[ { "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 ExpansionTileListDemo extends StatelessWidget {\n ExpansionTileListDe...
{ "accepted_by": "synthetic_generation", "code_len": 1139, "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": "54", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_606_0006
[ { "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": 344, "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": "6", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3832_0007
[ { "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';\nmixin ScrollMetrics {\n Scr...
{ "accepted_by": "synthetic_generation", "code_len": 3188, "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": "32", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_535_0008
[ { "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": 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_401_600_eng.csv", "original_row": "135", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4174_0009
[ { "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 'dart:ui';\nimport 'package:flutter/material.dart';\nimport 'package:flutter/rendering.dart';\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 40468, "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": "174", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3011_0010
[ { "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/draggable_scrollable_sheet/draggable_scrollable_sheet.0.dart'\n ...
{ "accepted_by": "synthetic_generation", "code_len": 1980, "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": "11", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_193_0011
[ { "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;\nFuture<void> main() async {\n St...
{ "accepted_by": "synthetic_generation", "code_len": 643, "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": "193", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_153_0012
[ { "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/widgets.dart';\nimport 'recorder.dart';\nimport 'test_data.dart';\nclass BenchSimpleLazyTextScroll extends...
{ "accepted_by": "synthetic_generation", "code_len": 2509, "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": "153", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_567_0013
[ { "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": "167", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1751_0015
[ { "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/src/engine.dart';\nbool _...
{ "accepted_by": "synthetic_generation", "code_len": 3114, "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": "151", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3531_0016
[ { "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/rendering.dart';\nimport 'package:flutter/widgets.dart' show TextSelectionToolbarLayoutDelegate;\nclass SpellCheckSugg...
{ "accepted_by": "synthetic_generation", "code_len": 850, "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_3401_3600_eng.csv", "original_row": "131", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4279_0017
[ { "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/painting.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n group('Linear TextScaler', () {\n test('e...
{ "accepted_by": "synthetic_generation", "code_len": 1470, "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": "79", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_135_0018
[ { "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 'recorder.dart';\nimport 'test_data.dart';\nclass BenchCardInfiniteScroll extends ...
{ "accepted_by": "synthetic_generation", "code_len": 2130, "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": "135", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3956_0019
[ { "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_test/flutter_test.dart';\nvoid main() {\n TestWidgetsFlutterBinding.ensureInitialized...
{ "accepted_by": "synthetic_generation", "code_len": 2523, "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_3801_4000_eng.csv", "original_row": "156", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1220_0020
[ { "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';\nclass ColorDemoHome extends StatelessWidget {\n ColorDemoHome({super.key});\n Widget build(BuildContext con...
{ "accepted_by": "synthetic_generation", "code_len": 2296, "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": "20", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3830_0021
[ { "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/animation.dart';\nimport 'package:flutter/foundation.dart';\nimport 'scroll_context.dart';\nimport 'scroll_physics.dar...
{ "accepted_by": "synthetic_generation", "code_len": 5137, "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": "30", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3001_0022
[ { "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/mouse_region.0.dart'...
{ "accepted_by": "synthetic_generation", "code_len": 1221, "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": "1", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3152_0024
[ { "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/listenable_builder.2.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';\nvoid...
{ "accepted_by": "synthetic_generation", "code_len": 1064, "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": "152", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4161_0025
[ { "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/rendering.dart';\nimport 'package:flutter_test...
{ "accepted_by": "synthetic_generation", "code_len": 14445, "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": "161", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2177_0026
[ { "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(OnDeletedExampleApp());\nclass OnDeletedExampleApp extends StatelessWidget {\n const OnD...
{ "accepted_by": "synthetic_generation", "code_len": 1839, "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": "177", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_30_0027
[ { "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/auto_complete.dart';\n\nimport 'package:flutter_test/flutter_test.dart';\nimport 'test_utils.dart';\nvoid mai...
{ "accepted_by": "synthetic_generation", "code_len": 774, "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": "30", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_981_0028
[ { "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 '../../gallery_localizations.dart';\nclass CupertinoSliderDemo extends StatefulWidget {\n CupertinoSli...
{ "accepted_by": "synthetic_generation", "code_len": 3139, "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_801_1000_eng.csv", "original_row": "181", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3018_0029
[ { "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.0.dart' ...
{ "accepted_by": "synthetic_generation", "code_len": 3524, "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": "18", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2546_0030
[ { "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';\nvoid main() {\n runApp(Fl...
{ "accepted_by": "synthetic_generation", "code_len": 11109, "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_2401_2600_eng.csv", "original_row": "146", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2176_0031
[ { "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(DeleteIconBoxConstraintsApp());\nclass DeleteIconBoxConstraintsApp extends StatelessWidge...
{ "accepted_by": "synthetic_generation", "code_len": 1788, "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": "176", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_955_0032
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:collection/collection.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter/material.dart';\nimport 'package:flutte...
{ "accepted_by": "synthetic_generation", "code_len": 3061, "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": "155", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2520_0034
[ { "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(RestorablePushReplacementExampleApp());\nclass RestorablePushReplacementExampleApp extend...
{ "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", "imports_materia...
{ "derived_from": "flutter_code_with_questions_2401_2600_eng.csv", "original_row": "120", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_604_0035
[ { "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": 507, "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": "4", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_563_0036
[ { "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": "163", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2762_0037
[ { "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/material.dart';\nimport 'package:flutter_api_samples/material/flexible_space_bar/flexible_space_bar.0.dart'\n...
{ "accepted_by": "synthetic_generation", "code_len": 1318, "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": "162", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_581_0038
[ { "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": 327, "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": "181", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2650_0039
[ { "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/refresh/cupertino_sliver_refresh_control.0.dart'\n as example...
{ "accepted_by": "synthetic_generation", "code_len": 900, "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": "50", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2566_0040
[ { "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(ShapeExampleApp());\nclass ShapeExampleApp extends StatelessWidget {\n const ShapeExampl...
{ "accepted_by": "synthetic_generation", "code_len": 864, "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": "166", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4289_0041
[ { "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/physics.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('Tolerance control test', () {\n expe...
{ "accepted_by": "synthetic_generation", "code_len": 210, "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": "89", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2103_0042
[ { "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(NavBarApp());\nclass NavBarApp extends StatelessWidget {\n const NavBarApp({super.key})...
{ "accepted_by": "synthetic_generation", "code_len": 1418, "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": "103", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_260_0043
[ { "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('scrolling...
{ "accepted_by": "synthetic_generation", "code_len": 1556, "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": "60", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3212_0044
[ { "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_test/flutter_test.dart';\nimport '../../../widgets/sectors.dart' as demo;\nvoid main() {\n testWidgets('layers smoketest for wi...
{ "accepted_by": "synthetic_generation", "code_len": 224, "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": "12", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3767_0045
[ { "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/foundation.dart';\nimport 'package:flutter/rendering.dart';\nimport 'package:flutter/semantics.dart';\nimport 'package:flutter/s...
{ "accepted_by": "synthetic_generation", "code_len": 1826, "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": "167", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_766_0046
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'package:android_driver_extensions/native_driver.dart';\nimport 'package:android_driver_extensions/skia_gold.dart';\nimport 'package:flutter_driv...
{ "accepted_by": "synthetic_generation", "code_len": 1025, "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": "166", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2754_0047
[ { "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/material/elevated_button/elevated_button.0.dart' as example;\nimport 'packa...
{ "accepted_by": "synthetic_generation", "code_len": 865, "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": "154", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_497_0048
[ { "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": 1065, "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": "97", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3880_0049
[ { "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/animation.dart';\nimport 'package:flutter/rendering.dart';\nimport 'framework.dart';\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 38118, "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": "80", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2267_0050
[ { "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(NavigationBarApp());\nclass NavigationBarApp extends StatelessWidget {\n const Navigatio...
{ "accepted_by": "synthetic_generation", "code_len": 4260, "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": "67", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2663_0051
[ { "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/switch/cupertino_switch.0.dart' as example;\nimport 'package:flu...
{ "accepted_by": "synthetic_generation", "code_len": 719, "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": "63", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4056_0052
[ { "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/material.dart';\nimport 'package:flutter_test/flutter_test.dart';\nvoid main() {\...
{ "accepted_by": "synthetic_generation", "code_len": 9266, "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": "56", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1171_0053
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\nimport 'dart:js_interop';\nimport 'package:flutter/foundation.dart';\nimport 'package:web/web.dart' as web;\nFuture<void> main() async {\n bool execute...
{ "accepted_by": "synthetic_generation", "code_len": 556, "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": "171", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_458_0054
[ { "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": 336, "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": "58", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_271_0055
[ { "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/material.dart';\nimport 'package:flutter_driver/driver_extension.dart';\nimport 'android_platform_view.dart';...
{ "accepted_by": "synthetic_generation", "code_len": 2897, "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_201_400_eng.csv", "original_row": "71", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1599_0056
[ { "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 RawParagraph exten...
{ "accepted_by": "synthetic_generation", "code_len": 5244, "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": "199", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2247_0057
[ { "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(CustomListItemApp());\nclass CustomListItemApp extends StatelessWidget {\n const CustomL...
{ "accepted_by": "synthetic_generation", "code_len": 2807, "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": "47", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_501_0058
[ { "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/devices.dart';\nimport 'package:flutter_devicelab/framework/framework.dart';\nimport 'pac...
{ "accepted_by": "synthetic_generation", "code_len": 4404, "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": "101", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1761_0059
[ { "content": "You are a Flutter and Dart coding assistant.", "role": "system" }, { "content": "Fix the bug in the following Flutter code:\n```dart\n@JS()\nlibrary dom_manager_test;\nimport 'dart:js_interop';\nimport 'package:test/bootstrap/browser.dart';\nimport 'package:test/test.dart';\nimport 'pa...
{ "accepted_by": "synthetic_generation", "code_len": 5174, "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": "161", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_599_0060
[ { "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": 325, "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": "199", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4351_0061
[ { "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 'package:flutter_test/flutter_test.dart';\nimport 'rendering_tester.dart';\nvoid main() {\n TestRender...
{ "accepted_by": "synthetic_generation", "code_len": 14585, "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": "151", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_4360_0062
[ { "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 'package:flutter_test/flutter_test.dart';\nvoid main() {\n test('TableBorder constructor', () {\n T...
{ "accepted_by": "synthetic_generation", "code_len": 6057, "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": "160", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3179_0063
[ { "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 'dart:ui' as ui;\nlate var ui.FlutterView view;\nvoid beginFrame(Duration timeStamp) {\n ...
{ "accepted_by": "synthetic_generation", "code_len": 1466, "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_3001_3200_eng.csv", "original_row": "179", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2680_0064
[ { "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/app_bar/app_bar.1.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';\nOffset _kOffset = ...
{ "accepted_by": "synthetic_generation", "code_len": 1658, "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": "80", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_997_0065
[ { "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';\nimport 'material_demo_types.dart';\nclass GridListDemo extends Stat...
{ "accepted_by": "synthetic_generation", "code_len": 5317, "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": "197", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2709_0066
[ { "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/material/card/card.2.dart' as example;\nimport 'package:flutter_test/flutte...
{ "accepted_by": "synthetic_generation", "code_len": 2255, "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": "109", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2630_0067
[ { "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/cupertino/context_menu/cupertino_context_menu.0.dart'\n as example;\nimp...
{ "accepted_by": "synthetic_generation", "code_len": 723, "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": "30", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1327_0068
[ { "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:path/path.dart' as path;\nimport 'base_code_gen.dart';\nimport 'data.dart';\nimport 'logical_key_data.dart';\nimport ...
{ "accepted_by": "synthetic_generation", "code_len": 13524, "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": "127", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2114_0069
[ { "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(ScrollbarApp());\nclass ScrollbarApp extends StatelessWidget {\n const ScrollbarApp({su...
{ "accepted_by": "synthetic_generation", "code_len": 1416, "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": "114", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_467_0070
[ { "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": 326, "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": "67", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1041_0071
[ { "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:flutter/material.dart';\nimport 'metrics.dart';\nclass SettingsIcon extends StatelessWidget {\n SettingsIcon(this....
{ "accepted_by": "synthetic_generation", "code_len": 4210, "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": "41", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3750_0072
[ { "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/rendering.dart';\nimport 'basic.dart';\nimport 'framework.dart';\nimport 'i...
{ "accepted_by": "synthetic_generation", "code_len": 6482, "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": "150", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1898_0073
[ { "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';\nimport 'package:test/test.dart';\nvar Uint8List imageData = Uint8List.fromList(<int>[\n 0x52,\n 0x49,\n ...
{ "accepted_by": "synthetic_generation", "code_len": 1778, "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": "98", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_1003_0074
[ { "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 NavRailDemo extends StatefulWidget {\n NavRailDemo({super.ke...
{ "accepted_by": "synthetic_generation", "code_len": 2665, "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": "3", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_3227_0075
[ { "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('button ta...
{ "accepted_by": "synthetic_generation", "code_len": 927, "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": "27", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2759_0076
[ { "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.2.dart' as example;\nimport 'package:flutter_test/flutter_test.dart';\nvoid...
{ "accepted_by": "synthetic_generation", "code_len": 1497, "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": "159", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix
synth_bug_fix_2129_0077
[ { "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';\nvoid main() {\n runApp(TapAndDragToZoomApp());\n}\nclass TapAndDragTo...
{ "accepted_by": "synthetic_generation", "code_len": 3472, "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": "129", "status": "P2_synthetic", "synth_method": "template_bug_fix", "type": "synthetic" }
train
train
bug_fix