feat(learn): LanguageTool as a sidecar, reached through the server

compose.languagetool.yaml runs LanguageTool's open-source server
(meyay/languagetool 6.8-13, pinned by digest) on `edge` with no site and
no published port, as user 61081 on a read-only filesystem, without a
log. The server alone reaches it (LANGUAGETOOL_URL): grammar.check is
for those signed in, takes 20,000 characters, 60 checks a minute each
(counted in memory), maps a studyset's language to LanguageTool's code
and keeps nothing. instance.info() names the languages it checks; the
privacy page says what goes there. sidecars/README.md has the steps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/learn/halkyon_learn_client/lib/src/protocol/client.dart

@@ -45,6 +45,8 @@ import 'package:halkyon_learn_client/src/protocol/explore/release_part.dart'
     as _ijv4vyoq;
 import 'package:halkyon_learn_client/src/protocol/feedback/feedback_view.dart'
     as _idpwh21d;
+import 'package:halkyon_learn_client/src/protocol/grammar/grammar_check.dart'
+    as _idjaso1z;
 import 'package:halkyon_learn_client/src/protocol/instance/instance_info.dart'
     as _i26u8vl4;
 import 'package:halkyon_learn_client/src/protocol/publish/publication.dart'
@@ -761,6 +763,35 @@ class EndpointInbox extends _isc.EndpointRef {
   );
 }
 
+/// Spelling and grammar checked by the instance's LanguageTool (ADR 0024),
+/// for those signed in: LanguageTool has no sign-in of its own, so the
+/// server alone reaches it. Neither the text nor what was found is kept or
+/// logged. Refusals are `GrammarRefusedException`s.
+/// {@category Endpoint}
+class EndpointGrammar extends _isc.EndpointRef {
+  EndpointGrammar(_isc.EndpointCaller caller) : super(caller);
+
+  @override
+  String get name => 'grammar';
+
+  /// What LanguageTool finds in [text], checked in [language] (a language
+  /// tag, `de` or `en-GB`; none: the one it recognises). Refused where the
+  /// instance checks nothing or its LanguageTool fails, for a language it
+  /// lacks, a text longer than `GrammarChecking.maxText`, and beyond
+  /// `GrammarChecking.perMinute` checks a minute.
+  _ida.Future<_idjaso1z.GrammarCheck> check({
+    required String text,
+    String? language,
+  }) => caller.callServerEndpoint<_idjaso1z.GrammarCheck>(
+    'grammar',
+    'check',
+    {
+      'text': text,
+      'language': language,
+    },
+  );
+}
+
 /// What this instance offers. Public: the app asks before anyone is signed in.
 /// Released apps read the oldest build the server works with here, so it
 /// keeps every field they need: halkyon_base's own basics fill those it
@@ -775,8 +806,8 @@ class EndpointInstance extends _isc.EndpointRef {
 
   /// This instance's offer: email sign-in only where it can mail codes,
   /// where its source is, the oldest app build it works with, the domain its
-  /// people's handles are on, the Jellyfin server it suggests, and where it
-  /// keeps people's data and its backups.
+  /// people's handles are on, the Jellyfin server it suggests, the languages
+  /// it checks writing in, and where it keeps people's data and its backups.
   _ida.Future<_i26u8vl4.InstanceInfo> info() =>
       caller.callServerEndpoint<_i26u8vl4.InstanceInfo>(
         'instance',
@@ -918,6 +949,7 @@ class Client extends _isc.ServerpodClientShared {
     learningCount = EndpointLearningCount(this);
     feedback = EndpointFeedback(this);
     inbox = EndpointInbox(this);
+    grammar = EndpointGrammar(this);
     instance = EndpointInstance(this);
     publish = EndpointPublish(this);
     modules = Modules(this);
@@ -941,6 +973,8 @@ class Client extends _isc.ServerpodClientShared {
 
   late final EndpointInbox inbox;
 
+  late final EndpointGrammar grammar;
+
   late final EndpointInstance instance;
 
   late final EndpointPublish publish;
@@ -958,6 +992,7 @@ class Client extends _isc.ServerpodClientShared {
     'learningCount': learningCount,
     'feedback': feedback,
     'inbox': inbox,
+    'grammar': grammar,
     'instance': instance,
     'publish': publish,
   };

apps/learn/halkyon_learn_client/lib/src/protocol/grammar/grammar_check.dart

@@ -0,0 +1,115 @@
+/* AUTOMATICALLY GENERATED CODE DO NOT MODIFY */
+/*   To generate run: "serverpod generate"    */
+
+// ignore_for_file: implementation_imports
+// ignore_for_file: library_private_types_in_public_api
+// ignore_for_file: non_constant_identifier_names
+// ignore_for_file: public_member_api_docs
+// ignore_for_file: type_literal_in_constant_pattern
+// ignore_for_file: use_super_parameters
+// ignore_for_file: invalid_use_of_internal_member
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'package:halkyon_learn_client/src/protocol/protocol.dart' as _itx5j3f5;
+import 'package:serverpod_client/serverpod_client.dart' as _isc;
+import '../grammar/grammar_match.dart' as _idb2htis;
+
+/// What LanguageTool found in a text (ADR 0024). Neither the text nor this is
+/// kept.
+abstract class GrammarCheck
+    implements _isc.SerializableModel, _isc.ProtocolSerialization {
+  GrammarCheck._({
+    required this.matches,
+    required this.language,
+    required this.truncated,
+  });
+
+  factory GrammarCheck({
+    required List<_idb2htis.GrammarMatch> matches,
+    required String language,
+    required bool truncated,
+  }) = _GrammarCheckImpl;
+
+  factory GrammarCheck.fromJson(Map<String, dynamic> jsonSerialization) {
+    return GrammarCheck(
+      matches: _itx5j3f5.Protocol().deserialize<List<_idb2htis.GrammarMatch>>(
+        jsonSerialization['matches'],
+      ),
+      language: jsonSerialization['language'] as String,
+      truncated: _isc.BoolJsonExtension.fromJson(
+        jsonSerialization['truncated'],
+      ),
+    );
+  }
+
+  /// What it found, in the text's order; at most 200.
+  List<_idb2htis.GrammarMatch> matches;
+
+  /// The language it checked in (`de-DE`): the one asked for, or the one it
+  /// recognised where none was.
+  String language;
+
+  /// Whether it found more than [matches] hold.
+  bool truncated;
+
+  /// Returns a shallow copy of this [GrammarCheck]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  GrammarCheck copyWith({
+    List<_idb2htis.GrammarMatch>? matches,
+    String? language,
+    bool? truncated,
+  });
+  @override
+  Map<String, dynamic> toJson() {
+    return {
+      '__className__': 'GrammarCheck',
+      'matches': matches.toJson(valueToJson: (v) => v.toJson()),
+      'language': language,
+      'truncated': truncated,
+    };
+  }
+
+  @override
+  Map<String, dynamic> toJsonForProtocol() {
+    return {
+      '__className__': 'GrammarCheck',
+      'matches': matches.toJson(valueToJson: (v) => v.toJsonForProtocol()),
+      'language': language,
+      'truncated': truncated,
+    };
+  }
+
+  @override
+  String toString() {
+    return _isc.SerializationManager.encode(this);
+  }
+}
+
+class _GrammarCheckImpl extends GrammarCheck {
+  _GrammarCheckImpl({
+    required List<_idb2htis.GrammarMatch> matches,
+    required String language,
+    required bool truncated,
+  }) : super._(
+         matches: matches,
+         language: language,
+         truncated: truncated,
+       );
+
+  /// Returns a shallow copy of this [GrammarCheck]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  @override
+  GrammarCheck copyWith({
+    List<_idb2htis.GrammarMatch>? matches,
+    String? language,
+    bool? truncated,
+  }) {
+    return GrammarCheck(
+      matches: matches ?? this.matches.map((e0) => e0.copyWith()).toList(),
+      language: language ?? this.language,
+      truncated: truncated ?? this.truncated,
+    );
+  }
+}

apps/learn/halkyon_learn_client/lib/src/protocol/grammar/grammar_match.dart

@@ -0,0 +1,166 @@
+/* AUTOMATICALLY GENERATED CODE DO NOT MODIFY */
+/*   To generate run: "serverpod generate"    */
+
+// ignore_for_file: implementation_imports
+// ignore_for_file: library_private_types_in_public_api
+// ignore_for_file: non_constant_identifier_names
+// ignore_for_file: public_member_api_docs
+// ignore_for_file: type_literal_in_constant_pattern
+// ignore_for_file: use_super_parameters
+// ignore_for_file: invalid_use_of_internal_member
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'package:halkyon_learn_client/src/protocol/protocol.dart' as _itx5j3f5;
+import 'package:serverpod_client/serverpod_client.dart' as _isc;
+
+/// Something LanguageTool found in a text it checked (ADR 0024): where, what
+/// is wrong, and what could stand there instead.
+abstract class GrammarMatch
+    implements _isc.SerializableModel, _isc.ProtocolSerialization {
+  GrammarMatch._({
+    required this.offset,
+    required this.length,
+    required this.message,
+    required this.shortMessage,
+    required this.replacements,
+    required this.rule,
+    required this.category,
+  });
+
+  factory GrammarMatch({
+    required int offset,
+    required int length,
+    required String message,
+    required String shortMessage,
+    required List<String> replacements,
+    required String rule,
+    required String category,
+  }) = _GrammarMatchImpl;
+
+  factory GrammarMatch.fromJson(Map<String, dynamic> jsonSerialization) {
+    return GrammarMatch(
+      offset: jsonSerialization['offset'] as int,
+      length: jsonSerialization['length'] as int,
+      message: jsonSerialization['message'] as String,
+      shortMessage: jsonSerialization['shortMessage'] as String,
+      replacements: _itx5j3f5.Protocol().deserialize<List<String>>(
+        jsonSerialization['replacements'],
+      ),
+      rule: jsonSerialization['rule'] as String,
+      category: jsonSerialization['category'] as String,
+    );
+  }
+
+  /// Where it starts in the text checked, in UTF-16 code units, as Dart's
+  /// strings and LanguageTool's (Java's) count them.
+  int offset;
+
+  /// How long it is, counted so.
+  int length;
+
+  /// What is wrong, in a sentence, as the rule of the language checked says
+  /// it.
+  String message;
+
+  /// The same in a few words; may be empty.
+  String shortMessage;
+
+  /// What could stand there instead, the likeliest first; at most 8, none
+  /// where the rule only points something out.
+  List<String> replacements;
+
+  /// LanguageTool's rule (`MORFOLOGIK_RULE_EN_US`).
+  String rule;
+
+  /// Its category (`TYPOS`, `GRAMMAR`, `STYLE`).
+  String category;
+
+  /// Returns a shallow copy of this [GrammarMatch]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  GrammarMatch copyWith({
+    int? offset,
+    int? length,
+    String? message,
+    String? shortMessage,
+    List<String>? replacements,
+    String? rule,
+    String? category,
+  });
+  @override
+  Map<String, dynamic> toJson() {
+    return {
+      '__className__': 'GrammarMatch',
+      'offset': offset,
+      'length': length,
+      'message': message,
+      'shortMessage': shortMessage,
+      'replacements': replacements.toJson(),
+      'rule': rule,
+      'category': category,
+    };
+  }
+
+  @override
+  Map<String, dynamic> toJsonForProtocol() {
+    return {
+      '__className__': 'GrammarMatch',
+      'offset': offset,
+      'length': length,
+      'message': message,
+      'shortMessage': shortMessage,
+      'replacements': replacements.toJson(),
+      'rule': rule,
+      'category': category,
+    };
+  }
+
+  @override
+  String toString() {
+    return _isc.SerializationManager.encode(this);
+  }
+}
+
+class _GrammarMatchImpl extends GrammarMatch {
+  _GrammarMatchImpl({
+    required int offset,
+    required int length,
+    required String message,
+    required String shortMessage,
+    required List<String> replacements,
+    required String rule,
+    required String category,
+  }) : super._(
+         offset: offset,
+         length: length,
+         message: message,
+         shortMessage: shortMessage,
+         replacements: replacements,
+         rule: rule,
+         category: category,
+       );
+
+  /// Returns a shallow copy of this [GrammarMatch]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  @override
+  GrammarMatch copyWith({
+    int? offset,
+    int? length,
+    String? message,
+    String? shortMessage,
+    List<String>? replacements,
+    String? rule,
+    String? category,
+  }) {
+    return GrammarMatch(
+      offset: offset ?? this.offset,
+      length: length ?? this.length,
+      message: message ?? this.message,
+      shortMessage: shortMessage ?? this.shortMessage,
+      replacements: replacements ?? this.replacements.map((e0) => e0).toList(),
+      rule: rule ?? this.rule,
+      category: category ?? this.category,
+    );
+  }
+}

apps/learn/halkyon_learn_client/lib/src/protocol/grammar/grammar_refusal.dart

@@ -0,0 +1,52 @@
+/* AUTOMATICALLY GENERATED CODE DO NOT MODIFY */
+/*   To generate run: "serverpod generate"    */
+
+// ignore_for_file: implementation_imports
+// ignore_for_file: library_private_types_in_public_api
+// ignore_for_file: non_constant_identifier_names
+// ignore_for_file: public_member_api_docs
+// ignore_for_file: type_literal_in_constant_pattern
+// ignore_for_file: use_super_parameters
+// ignore_for_file: invalid_use_of_internal_member
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'package:serverpod_client/serverpod_client.dart' as _isc;
+
+/// Why a text wasn't checked (ADR 0024).
+enum GrammarRefusal implements _isc.SerializableModel {
+  /// This instance checks nothing (no `LANGUAGETOOL_URL`), or its
+  /// LanguageTool didn't answer.
+  unavailable,
+
+  /// Its LanguageTool doesn't check the language asked for.
+  unknownLanguage,
+
+  /// Longer than one check takes (`GrammarEndpoint.maxText`).
+  tooLong,
+
+  /// More checks in the last minute than a person may ask for.
+  tooOften;
+
+  static GrammarRefusal fromJson(String name) {
+    switch (name) {
+      case 'unavailable':
+        return GrammarRefusal.unavailable;
+      case 'unknownLanguage':
+        return GrammarRefusal.unknownLanguage;
+      case 'tooLong':
+        return GrammarRefusal.tooLong;
+      case 'tooOften':
+        return GrammarRefusal.tooOften;
+      default:
+        throw ArgumentError(
+          'Value "$name" cannot be converted to "GrammarRefusal"',
+        );
+    }
+  }
+
+  @override
+  String toJson() => name;
+
+  @override
+  String toString() => name;
+}

apps/learn/halkyon_learn_client/lib/src/protocol/grammar/grammar_refused_exception.dart

@@ -0,0 +1,77 @@
+/* AUTOMATICALLY GENERATED CODE DO NOT MODIFY */
+/*   To generate run: "serverpod generate"    */
+
+// ignore_for_file: implementation_imports
+// ignore_for_file: library_private_types_in_public_api
+// ignore_for_file: non_constant_identifier_names
+// ignore_for_file: public_member_api_docs
+// ignore_for_file: type_literal_in_constant_pattern
+// ignore_for_file: use_super_parameters
+// ignore_for_file: invalid_use_of_internal_member
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'package:serverpod_client/serverpod_client.dart' as _isc;
+import '../grammar/grammar_refusal.dart' as _i6zxv7br;
+
+/// A text wasn't checked (ADR 0024).
+abstract class GrammarRefusedException
+    implements
+        _isc.SerializableException,
+        _isc.SerializableModel,
+        _isc.ProtocolSerialization {
+  GrammarRefusedException._({required this.reason});
+
+  factory GrammarRefusedException({required _i6zxv7br.GrammarRefusal reason}) =
+      _GrammarRefusedExceptionImpl;
+
+  factory GrammarRefusedException.fromJson(
+    Map<String, dynamic> jsonSerialization,
+  ) {
+    return GrammarRefusedException(
+      reason: _i6zxv7br.GrammarRefusal.fromJson(
+        (jsonSerialization['reason'] as String),
+      ),
+    );
+  }
+
+  /// Why.
+  _i6zxv7br.GrammarRefusal reason;
+
+  /// Returns a shallow copy of this [GrammarRefusedException]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  GrammarRefusedException copyWith({_i6zxv7br.GrammarRefusal? reason});
+  @override
+  Map<String, dynamic> toJson() {
+    return {
+      '__className__': 'GrammarRefusedException',
+      'reason': reason.toJson(),
+    };
+  }
+
+  @override
+  Map<String, dynamic> toJsonForProtocol() {
+    return {
+      '__className__': 'GrammarRefusedException',
+      'reason': reason.toJson(),
+    };
+  }
+
+  @override
+  String toString() {
+    return 'GrammarRefusedException(reason: $reason)';
+  }
+}
+
+class _GrammarRefusedExceptionImpl extends GrammarRefusedException {
+  _GrammarRefusedExceptionImpl({required _i6zxv7br.GrammarRefusal reason})
+    : super._(reason: reason);
+
+  /// Returns a shallow copy of this [GrammarRefusedException]
+  /// with some or all fields replaced by the given arguments.
+  @_isc.useResult
+  @override
+  GrammarRefusedException copyWith({_i6zxv7br.GrammarRefusal? reason}) {
+    return GrammarRefusedException(reason: reason ?? this.reason);
+  }
+}

apps/learn/halkyon_learn_client/lib/src/protocol/instance/instance_info.dart

@@ -10,6 +10,7 @@
 // ignore_for_file: invalid_use_of_internal_member
 
 // ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'package:halkyon_learn_client/src/protocol/protocol.dart' as _itx5j3f5;
 import 'package:serverpod_client/serverpod_client.dart' as _isc;
 
 /// What this instance offers, so the app can adapt: every instance is run by
@@ -21,6 +22,7 @@ abstract class InstanceInfo
     this.minimumAppBuild,
     this.accountDomain,
     this.jellyfinUrl,
+    this.grammarLanguages,
     this.emailSignIn,
     this.dataLocation,
     this.backupLocation,
@@ -31,6 +33,7 @@ abstract class InstanceInfo
     int? minimumAppBuild,
     String? accountDomain,
     String? jellyfinUrl,
+    List<String>? grammarLanguages,
     bool? emailSignIn,
     String? dataLocation,
     String? backupLocation,
@@ -42,6 +45,11 @@ abstract class InstanceInfo
       minimumAppBuild: jsonSerialization['minimumAppBuild'] as int?,
       accountDomain: jsonSerialization['accountDomain'] as String?,
       jellyfinUrl: jsonSerialization['jellyfinUrl'] as String?,
+      grammarLanguages: jsonSerialization['grammarLanguages'] == null
+          ? null
+          : _itx5j3f5.Protocol().deserialize<List<String>>(
+              jsonSerialization['grammarLanguages'],
+            ),
       emailSignIn: jsonSerialization['emailSignIn'] == null
           ? null
           : _isc.BoolJsonExtension.fromJson(jsonSerialization['emailSignIn']),
@@ -71,6 +79,11 @@ abstract class InstanceInfo
   /// none, and from servers that predate it.
   String? jellyfinUrl;
 
+  /// The languages its LanguageTool checks spelling and grammar in (ADR
+  /// 0024), each without its variants (`de`, `ja`). Null where it has none,
+  /// while it hasn't answered, and from servers that predate it.
+  List<String>? grammarLanguages;
+
   /// Whether people can sign in with an email address here (ADR 0010): a
   /// code mailed to it. Null from servers that predate it: no.
   bool? emailSignIn;
@@ -93,6 +106,7 @@ abstract class InstanceInfo
     int? minimumAppBuild,
     String? accountDomain,
     String? jellyfinUrl,
+    List<String>? grammarLanguages,
     bool? emailSignIn,
     String? dataLocation,
     String? backupLocation,
@@ -105,6 +119,8 @@ abstract class InstanceInfo
       if (minimumAppBuild != null) 'minimumAppBuild': minimumAppBuild,
       if (accountDomain != null) 'accountDomain': accountDomain,
       if (jellyfinUrl != null) 'jellyfinUrl': jellyfinUrl,
+      if (grammarLanguages != null)
+        'grammarLanguages': grammarLanguages?.toJson(),
       if (emailSignIn != null) 'emailSignIn': emailSignIn,
       if (dataLocation != null) 'dataLocation': dataLocation,
       if (backupLocation != null) 'backupLocation': backupLocation,
@@ -119,6 +135,8 @@ abstract class InstanceInfo
       if (minimumAppBuild != null) 'minimumAppBuild': minimumAppBuild,
       if (accountDomain != null) 'accountDomain': accountDomain,
       if (jellyfinUrl != null) 'jellyfinUrl': jellyfinUrl,
+      if (grammarLanguages != null)
+        'grammarLanguages': grammarLanguages?.toJson(),
       if (emailSignIn != null) 'emailSignIn': emailSignIn,
       if (dataLocation != null) 'dataLocation': dataLocation,
       if (backupLocation != null) 'backupLocation': backupLocation,
@@ -139,6 +157,7 @@ class _InstanceInfoImpl extends InstanceInfo {
     int? minimumAppBuild,
     String? accountDomain,
     String? jellyfinUrl,
+    List<String>? grammarLanguages,
     bool? emailSignIn,
     String? dataLocation,
     String? backupLocation,
@@ -147,6 +166,7 @@ class _InstanceInfoImpl extends InstanceInfo {
          minimumAppBuild: minimumAppBuild,
          accountDomain: accountDomain,
          jellyfinUrl: jellyfinUrl,
+         grammarLanguages: grammarLanguages,
          emailSignIn: emailSignIn,
          dataLocation: dataLocation,
          backupLocation: backupLocation,
@@ -161,6 +181,7 @@ class _InstanceInfoImpl extends InstanceInfo {
     Object? minimumAppBuild = _Undefined,
     Object? accountDomain = _Undefined,
     Object? jellyfinUrl = _Undefined,
+    Object? grammarLanguages = _Undefined,
     Object? emailSignIn = _Undefined,
     Object? dataLocation = _Undefined,
     Object? backupLocation = _Undefined,
@@ -174,6 +195,9 @@ class _InstanceInfoImpl extends InstanceInfo {
           ? accountDomain
           : this.accountDomain,
       jellyfinUrl: jellyfinUrl is String? ? jellyfinUrl : this.jellyfinUrl,
+      grammarLanguages: grammarLanguages is List<String>?
+          ? grammarLanguages
+          : this.grammarLanguages?.map((e0) => e0).toList(),
       emailSignIn: emailSignIn is bool? ? emailSignIn : this.emailSignIn,
       dataLocation: dataLocation is String? ? dataLocation : this.dataLocation,
       backupLocation: backupLocation is String?

apps/learn/halkyon_learn_client/lib/src/protocol/protocol.dart

@@ -75,6 +75,10 @@ import 'feedback/feedback_message_view.dart' as _inlv2ksv;
 import 'feedback/feedback_person.dart' as _i8yyqgue;
 import 'feedback/feedback_thread.dart' as _ihfcaz5v;
 import 'feedback/feedback_view.dart' as _in90wtl8;
+import 'grammar/grammar_check.dart' as _i9fqesmy;
+import 'grammar/grammar_match.dart' as _ic4rezvx;
+import 'grammar/grammar_refusal.dart' as _i0nzmh1m;
+import 'grammar/grammar_refused_exception.dart' as _ixpk31s8;
 import 'instance/instance_info.dart' as _iskrg2g3;
 import 'learning_path/learning_path.dart' as _ivt5m868;
 import 'learning_path/learning_path_answer.dart' as _iy9sv3bs;
@@ -132,6 +136,10 @@ export 'feedback/feedback_message_view.dart';
 export 'feedback/feedback_person.dart';
 export 'feedback/feedback_thread.dart';
 export 'feedback/feedback_view.dart';
+export 'grammar/grammar_check.dart';
+export 'grammar/grammar_match.dart';
+export 'grammar/grammar_refusal.dart';
+export 'grammar/grammar_refused_exception.dart';
 export 'instance/instance_info.dart';
 export 'learning_path/learning_path.dart';
 export 'learning_path/learning_path_answer.dart';
@@ -2672,6 +2680,18 @@ class Protocol extends _isd.DatabaseSerializationManager {
     if (t == _in90wtl8.FeedbackView) {
       return _in90wtl8.FeedbackView.fromJson(data) as T;
     }
+    if (t == _i9fqesmy.GrammarCheck) {
+      return _i9fqesmy.GrammarCheck.fromJson(data) as T;
+    }
+    if (t == _ic4rezvx.GrammarMatch) {
+      return _ic4rezvx.GrammarMatch.fromJson(data) as T;
+    }
+    if (t == _i0nzmh1m.GrammarRefusal) {
+      return _i0nzmh1m.GrammarRefusal.fromJson(data) as T;
+    }
+    if (t == _ixpk31s8.GrammarRefusedException) {
+      return _ixpk31s8.GrammarRefusedException.fromJson(data) as T;
+    }
     if (t == _iskrg2g3.InstanceInfo) {
       return _iskrg2g3.InstanceInfo.fromJson(data) as T;
     }
@@ -2880,6 +2900,22 @@ class Protocol extends _isd.DatabaseSerializationManager {
     if (t == _isc.getType<_in90wtl8.FeedbackView?>()) {
       return (data != null ? _in90wtl8.FeedbackView.fromJson(data) : null) as T;
     }
+    if (t == _isc.getType<_i9fqesmy.GrammarCheck?>()) {
+      return (data != null ? _i9fqesmy.GrammarCheck.fromJson(data) : null) as T;
+    }
+    if (t == _isc.getType<_ic4rezvx.GrammarMatch?>()) {
+      return (data != null ? _ic4rezvx.GrammarMatch.fromJson(data) : null) as T;
+    }
+    if (t == _isc.getType<_i0nzmh1m.GrammarRefusal?>()) {
+      return (data != null ? _i0nzmh1m.GrammarRefusal.fromJson(data) : null)
+          as T;
+    }
+    if (t == _isc.getType<_ixpk31s8.GrammarRefusedException?>()) {
+      return (data != null
+              ? _ixpk31s8.GrammarRefusedException.fromJson(data)
+              : null)
+          as T;
+    }
     if (t == _isc.getType<_iskrg2g3.InstanceInfo?>()) {
       return (data != null ? _iskrg2g3.InstanceInfo.fromJson(data) : null) as T;
     }
@@ -2985,6 +3021,18 @@ class Protocol extends _isd.DatabaseSerializationManager {
               .toList()
           as T;
     }
+    if (t == List<_ic4rezvx.GrammarMatch>) {
+      return (data as List)
+              .map((e) => deserialize<_ic4rezvx.GrammarMatch>(e))
+              .toList()
+          as T;
+    }
+    if (t == _isc.getType<List<String>?>()) {
+      return (data != null
+              ? (data as List).map((e) => deserialize<String>(e)).toList()
+              : null)
+          as T;
+    }
     if (t == List<_i7kd0wkp.ReleaseInfo>) {
       return (data as List)
               .map((e) => deserialize<_i7kd0wkp.ReleaseInfo>(e))
@@ -3123,6 +3171,10 @@ class Protocol extends _isd.DatabaseSerializationManager {
       _i8yyqgue.FeedbackPerson => 'FeedbackPerson',
       _ihfcaz5v.FeedbackThread => 'FeedbackThread',
       _in90wtl8.FeedbackView => 'FeedbackView',
+      _i9fqesmy.GrammarCheck => 'GrammarCheck',
+      _ic4rezvx.GrammarMatch => 'GrammarMatch',
+      _i0nzmh1m.GrammarRefusal => 'GrammarRefusal',
+      _ixpk31s8.GrammarRefusedException => 'GrammarRefusedException',
       _iskrg2g3.InstanceInfo => 'InstanceInfo',
       _ivt5m868.LearningPath => 'LearningPath',
       _iy9sv3bs.LearningPathAnswer => 'LearningPathAnswer',
@@ -3233,6 +3285,14 @@ class Protocol extends _isd.DatabaseSerializationManager {
         return 'FeedbackThread';
       case _in90wtl8.FeedbackView():
         return 'FeedbackView';
+      case _i9fqesmy.GrammarCheck():
+        return 'GrammarCheck';
+      case _ic4rezvx.GrammarMatch():
+        return 'GrammarMatch';
+      case _i0nzmh1m.GrammarRefusal():
+        return 'GrammarRefusal';
+      case _ixpk31s8.GrammarRefusedException():
+        return 'GrammarRefusedException';
       case _iskrg2g3.InstanceInfo():
         return 'InstanceInfo';
       case _ivt5m868.LearningPath():
@@ -3419,6 +3479,18 @@ class Protocol extends _isd.DatabaseSerializationManager {
     if (dataClassName == 'FeedbackView') {
       return deserialize<_in90wtl8.FeedbackView>(data['data']);
     }
+    if (dataClassName == 'GrammarCheck') {
+      return deserialize<_i9fqesmy.GrammarCheck>(data['data']);
+    }
+    if (dataClassName == 'GrammarMatch') {
+      return deserialize<_ic4rezvx.GrammarMatch>(data['data']);
+    }
+    if (dataClassName == 'GrammarRefusal') {
+      return deserialize<_i0nzmh1m.GrammarRefusal>(data['data']);
+    }
+    if (dataClassName == 'GrammarRefusedException') {
+      return deserialize<_ixpk31s8.GrammarRefusedException>(data['data']);
+    }
     if (dataClassName == 'InstanceInfo') {
       return deserialize<_iskrg2g3.InstanceInfo>(data['data']);
     }