diff --git a/lib/ability.dart b/lib/ability.dart
index 6881ef1..869e07e 100644
--- a/lib/ability.dart
+++ b/lib/ability.dart
@@ -28,15 +28,6 @@ class PokemonAbility with ResourceBase {
       ability: AbilityResource.fromJson(json['ability']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'is_hidden': isHidden,
-      'slot': slot,
-      'ability': ability.toJson(),
-    };
-  }
 }
 
 class Ability with ResourceBase {
@@ -81,21 +72,6 @@ class Ability with ResourceBase {
       pokemon: json['pokemon'].map<AbilityPokemon>((e) => AbilityPokemon.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'is_main_series': isMainSeries,
-      'generation': generation.toJson(),
-      'names': names.map((e) => e.toJson()).toList(),
-      'effect_entries': effectEntries.map((e) => e.toJson()).toList(),
-      'effect_changes': effectChanges.map((e) => e.toJson()).toList(),
-      'flavor_text_entries': flavorTextEntries.map((e) => e.toJson()).toList(),
-      'pokemon': pokemon.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class AbilityPokemon with ResourceBase {
@@ -121,15 +97,6 @@ class AbilityPokemon with ResourceBase {
       pokemon: PokemonResource.fromJson(json['pokemon']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'is_hidden': isHidden,
-      'slot': slot,
-      'pokemon': pokemon.toJson(),
-    };
-  }
 }
 
 class AbilityFlavorText with ResourceBase {
@@ -155,15 +122,6 @@ class AbilityFlavorText with ResourceBase {
       versionGroup: NamedAPIResource.fromJson(json['version_group']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'flavor_text': flavorText,
-      'language': language.toJson(),
-      'version_group': versionGroup.toJson(),
-    };
-  }
 }
 
 class AbilityEffectChange with ResourceBase {
@@ -185,14 +143,6 @@ class AbilityEffectChange with ResourceBase {
       versionGroup: NamedAPIResource.fromJson(json['version_group']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'effect_entries': effectEntries.map((e) => e.toJson()).toList(),
-      'version_group': versionGroup.toJson(),
-    };
-  }
 }
 
 class VerboseEffect with ResourceBase {
@@ -218,15 +168,6 @@ class VerboseEffect with ResourceBase {
       language: NamedAPIResource.fromJson(json['language']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'effect': effect,
-      'short_effect': shortEffect,
-      'language': language.toJson(),
-    };
-  }
 }
 
 class AbilityResource extends NamedAPIResource<Ability> {
@@ -244,13 +185,6 @@ class AbilityResource extends NamedAPIResource<Ability> {
     );
   }
 
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-    };
-  }
-
   @override
   Ability mapper(dynamic data) {
     return Ability.fromJson(data);
diff --git a/lib/base.dart b/lib/base.dart
index ef13f12..ede1fdd 100644
--- a/lib/base.dart
+++ b/lib/base.dart
@@ -15,6 +15,6 @@ mixin ResourceBase {
     return '$runtimeType${toJson()}';
   }
 
-  Map<String, dynamic> toJson();
+  Map<String, dynamic> toJson() => rawData;
 }
 
diff --git a/lib/cache.dart b/lib/cache.dart
index c418698..af04858 100644
--- a/lib/cache.dart
+++ b/lib/cache.dart
@@ -21,7 +21,7 @@ abstract class CacheManager {
     T Function(dynamic data)? onResult,
     int? retry,
   }) async {
-    final _retry = retry ?? 3;
+    final remainingRetries = retry ?? 3;
     Response? response;
     try {
       final mapper = onResult ?? ((data) => data);
@@ -34,8 +34,8 @@ abstract class CacheManager {
       add(key, response.data);
       return value;
     } catch (e, stack) {
-      if (_retry > 0) {
-        return getOne(key, onResult: onResult, retry: _retry - 1);
+      if (remainingRetries > 0) {
+        return getOne(key, onResult: onResult, retry: remainingRetries - 1);
       }
       remove(key);
       print('Error getting $key: $e.\nResponse: $response');
diff --git a/lib/characteristic.dart b/lib/characteristic.dart
index 91aa797..b1efb2d 100644
--- a/lib/characteristic.dart
+++ b/lib/characteristic.dart
@@ -31,15 +31,4 @@ class Characteristic with ResourceBase {
       highestStat: NamedAPIResource.fromJson(json['highest_stat']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'gene_modulo': geneModulo,
-      'possible_values': possibleValues,
-      'descriptions': descriptions.map((e) => e.toJson()).toList(),
-      'highest_stat': highestStat.toJson(),
-    };
-  }
 }
diff --git a/lib/description.dart b/lib/description.dart
index 028330b..265b76b 100644
--- a/lib/description.dart
+++ b/lib/description.dart
@@ -21,11 +21,5 @@ class Description with ResourceBase {
       language: NamedAPIResource.fromJson(json['language']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'description': description,
-        'language': language.toJson(),
-      };
 }
 
diff --git a/lib/encounter.dart b/lib/encounter.dart
index f2e2292..ecf0620 100644
--- a/lib/encounter.dart
+++ b/lib/encounter.dart
@@ -169,14 +169,6 @@ class EncounterMethodRate with ResourceBase {
           json['version_details'].map<EncounterVersionDetails>((e) => EncounterVersionDetails.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'encounter_method': encounterMethod.toJson(),
-      'version_details': versionDetails.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class EncounterVersionDetails with ResourceBase {
@@ -201,13 +193,5 @@ class EncounterVersionDetails with ResourceBase {
       version: NamedAPIResource.fromJson(json['version']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'rate': rate,
-      'version': version.toJson(),
-    };
-  }
 }
 
diff --git a/lib/flavor_text.dart b/lib/flavor_text.dart
index 47f3f4b..56cba68 100644
--- a/lib/flavor_text.dart
+++ b/lib/flavor_text.dart
@@ -24,13 +24,6 @@ class FlavorText with ResourceBase {
       version: NamedAPIResource.fromJson(json['version']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'flavor_text': flavorText,
-        'language': language.toJson(),
-        'version': version.toJson(),
-      };
 }
 
 class MoveFlavorText with ResourceBase {
@@ -56,11 +49,4 @@ class MoveFlavorText with ResourceBase {
       versionGroup: NamedAPIResource.fromJson(json['version_group']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'flavor_text': flavorText,
-        'language': language.toJson(),
-        'version_group': versionGroup.toJson(),
-      };
 }
diff --git a/lib/generation.dart b/lib/generation.dart
index efa4c36..c576d66 100644
--- a/lib/generation.dart
+++ b/lib/generation.dart
@@ -43,19 +43,6 @@ class Generation with ResourceBase {
       versionGroups: json['version_groups'].map((e) => NamedAPIResource.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'id': id,
-        'name': name,
-        'abilities': abilities.map((e) => e.toJson()).toList(),
-        'names': names.map((e) => e.toJson()).toList(),
-        'main_region': mainRegion.toJson(),
-        'moves': moves.map((e) => e.toJson()).toList(),
-        'pokemon_species': pokemonSpecies.map((e) => e.toJson()).toList(),
-        'types': types.map((e) => e.toJson()).toList(),
-        'version_groups': versionGroups.map((e) => e.toJson()).toList(),
-      };
 }
 
 class GenerationResource extends NamedAPIResource<Generation> {
diff --git a/lib/generation_game_index.dart b/lib/generation_game_index.dart
index a155638..a220cd1 100644
--- a/lib/generation_game_index.dart
+++ b/lib/generation_game_index.dart
@@ -22,11 +22,5 @@ class GenerationGameIndex with ResourceBase {
         gameIndex: json['game_index'],
         generation: NamedAPIResource.fromJson(json['generation']),
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'game_index': gameIndex,
-        'generation': generation.toJson(),
-      };
 }
 
diff --git a/lib/genus.dart b/lib/genus.dart
index 36b5842..8cc9a74 100644
--- a/lib/genus.dart
+++ b/lib/genus.dart
@@ -21,11 +21,5 @@ class Genus with ResourceBase {
       language: NamedAPIResource.fromJson(json['language']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'genus': genus,
-        'language': language.toJson(),
-      };
 }
 
diff --git a/lib/held_item.dart b/lib/held_item.dart
index 27825ef..c2eab36 100644
--- a/lib/held_item.dart
+++ b/lib/held_item.dart
@@ -44,11 +44,5 @@ class PokemonHeldItemVersion with ResourceBase {
         version: NamedAPIResource.fromJson(json["version"]),
         rarity: json["rarity"],
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        "version": version.toJson(),
-        "rarity": rarity,
-      };
 }
 
diff --git a/lib/language.dart b/lib/language.dart
index 5e40910..9c295e8 100644
--- a/lib/language.dart
+++ b/lib/language.dart
@@ -34,18 +34,6 @@ class Language with ResourceBase {
       names: json['names'].map((e) => Name.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'official': official,
-      'iso639': iso639,
-      'iso3166': iso3166,
-      'names': names.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class LanguageResource extends NamedAPIResource<Language> {
diff --git a/lib/location.dart b/lib/location.dart
index c642119..1ac0b9c 100644
--- a/lib/location.dart
+++ b/lib/location.dart
@@ -35,18 +35,6 @@ class Location with ResourceBase {
       gameIndices: json['game_indices'].map<GenerationGameIndex>((e) => GenerationGameIndex.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'names': names.map((e) => e.toJson()).toList(),
-      'region': region.toJson(),
-      'areas': areas.map((e) => e.toJson()).toList(),
-      'game_indices': gameIndices.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class LocationResource extends NamedAPIResource<Location> {
diff --git a/lib/location_area.dart b/lib/location_area.dart
index 7a0d174..0207615 100644
--- a/lib/location_area.dart
+++ b/lib/location_area.dart
@@ -63,16 +63,6 @@ class LocationArea with ResourceBase {
           json['encounter_method_rates'].map<EncounterMethodRate>((e) => EncounterMethodRate.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'game_index': gameIndex,
-      'location': location.toJson(),
-      'names': names.map((e) => e.toJson()).toList(),
-      'pokemon_encounters': pokemonEncounters.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class PokemonLocationAreaResource extends APIResource<List<PokemonLocationArea>> {
diff --git a/lib/move.dart b/lib/move.dart
index 00fe40e..46c44b0 100644
--- a/lib/move.dart
+++ b/lib/move.dart
@@ -27,14 +27,6 @@ class PokemonMove with ResourceBase {
           ((json['version_group_details'] ?? []) as List<dynamic>).map((e) => PokemonMoveVersion.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'move': move?.toJson(),
-      'version_group_details': versionGroupDetails.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class Move with ResourceBase {
@@ -58,7 +50,7 @@ class Move with ResourceBase {
   final List<Name> names;
   final PastMoveStatValues pastValues;
   final List<dynamic> statChanges;
-  final dynamic superContestEffect;
+  final NamedAPIResource superContestEffect;
   final NamedAPIResource? target;
   final NamedAPIResource? type;
 
@@ -117,40 +109,12 @@ class Move with ResourceBase {
       names: (json['names'] as List<dynamic>).map((e) => Name.fromJson(e)).toList(),
       pastValues: PastMoveStatValues.fromJson(json['past_values']),
       statChanges: json['stat_changes'],
-      superContestEffect: json['super_contest_effect'],
+      superContestEffect: NamedAPIResource.fromJson(json['super_contest_effect']),
       target: json['target'] != null ? NamedAPIResource.fromJson(json['target']) : null,
       type: json['type'] != null ? NamedAPIResource.fromJson(json['type']) : null,
     );
   }
 
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'accuracy': accuracy,
-      'effect_chance': effectChance,
-      'pp': pp,
-      'priority': priority,
-      'power': power,
-      'contest_combos': contestCombos?.toJson(),
-      'contest_type': contestType?.toJson(),
-      'contest_effect': contestEffect?.toJson(),
-      'damage_class': damageClass?.toJson(),
-      'effect_entries': effectEntries.map((e) => e.toJson()).toList(),
-      'effect_changes': effectChanges.map((e) => e.toJson()).toList(),
-      'flavor_text_entries': flavorTextEntries,
-      'generation': generation?.toJson(),
-      'machines': machines,
-      'meta': metaData,
-      'names': names.map((e) => e.toJson()).toList(),
-      'past_values': pastValues,
-      'stat_changes': statChanges,
-      'super_contest_effect': superContestEffect,
-      'target': target?.toJson(),
-      'type': type?.toJson(),
-    };
-  }
 }
 
 class MoveResource extends NamedAPIResource<Move> {
@@ -164,14 +128,6 @@ class MoveResource extends NamedAPIResource<Move> {
     );
   }
 
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-      'url': url,
-    };
-  }
-
   @override
   Move mapper(data) => Move.fromJson(data);
 }
@@ -187,20 +143,12 @@ class PokemonMoveResource extends NamedAPIResource<PokemonMove> {
     );
   }
 
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-      'url': url,
-    };
-  }
-
   @override
   PokemonMove mapper(data) => PokemonMove.fromJson(data);
 }
 
 class PokemonMoveVersion with ResourceBase {
-  final NamedAPIResource? versionGroup;
+  final VersionGroupResource? versionGroup;
   final int? levelLearnedAt;
   final MoveLearnMethodResource? moveLearnMethod;
   @override
@@ -216,21 +164,12 @@ class PokemonMoveVersion with ResourceBase {
   factory PokemonMoveVersion.fromJson(Map<String, dynamic> json) {
     return PokemonMoveVersion(
       rawData: json,
-      versionGroup: json['version_group'] != null ? NamedAPIResource.fromJson(json['version_group']) : null,
+      versionGroup: json['version_group'] != null ? VersionGroupResource.fromJson(json['version_group']) : null,
       levelLearnedAt: json['level_learned_at'],
       moveLearnMethod:
           json['move_learn_method'] != null ? MoveLearnMethodResource.fromJson(json['move_learn_method']) : null,
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'version_group': versionGroup?.toJson(),
-      'level_learned_at': levelLearnedAt,
-      'move_learn_method': moveLearnMethod?.toJson(),
-    };
-  }
 }
 
 class MoveLearnMethod with ResourceBase {
@@ -262,17 +201,6 @@ class MoveLearnMethod with ResourceBase {
       descriptions: (json['descriptions'] as List<dynamic>).map((e) => Description.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'names': names.map((e) => e.toJson()).toList(),
-      'version_groups': versionGroups.map((e) => e.toJson()).toList(),
-      'descriptions': descriptions.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class PokemonMoveVersionResource extends NamedAPIResource<PokemonMoveVersion> {
@@ -352,17 +280,4 @@ class PastMoveStatValues with ResourceBase {
       versionGroup: json['version_group'] != null ? VersionGroupResource.fromJson(json['version_group']) : null,
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'accuracy': accuracy,
-      'effect_chance': effectChance,
-      'power': power,
-      'pp': pp,
-      'effect_entries': effectEntries,
-      'type': type?.toJson(),
-      'version_group': versionGroup?.toJson(),
-    };
-  }
 }
diff --git a/lib/move_battle_style_preference.dart b/lib/move_battle_style_preference.dart
index 71aede4..9200c93 100644
--- a/lib/move_battle_style_preference.dart
+++ b/lib/move_battle_style_preference.dart
@@ -59,14 +59,5 @@ class MoveBattleStyle with ResourceBase {
       names: json['names'].map((e) => Name.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'names': names.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
diff --git a/lib/move_damage_class.dart b/lib/move_damage_class.dart
index 2bb311c..1026d5c 100644
--- a/lib/move_damage_class.dart
+++ b/lib/move_damage_class.dart
@@ -33,17 +33,6 @@ class MoveDamageClass with ResourceBase {
       names: json['names'].map((e) => Name.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'descriptions': descriptions.map((e) => e.toJson()).toList(),
-      'moves': moves.map((e) => e.toJson()).toList(),
-      'names': names.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class MoveDamageClassResource extends NamedAPIResource<MoveDamageClass> {
diff --git a/lib/move_stat_affect.dart b/lib/move_stat_affect.dart
index 10d01f7..6dcebfe 100644
--- a/lib/move_stat_affect.dart
+++ b/lib/move_stat_affect.dart
@@ -22,14 +22,6 @@ class MoveStatAffectSets with ResourceBase {
       decrease: json['decrease'].map((e) => MoveStatAffect.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'increase': increase.map((e) => e.toJson()).toList(),
-      'decrease': decrease.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class MoveStatAffect with ResourceBase {
@@ -52,12 +44,4 @@ class MoveStatAffect with ResourceBase {
       move: MoveResource.fromJson(json['move']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'change': change,
-      'move': move.toJson(),
-    };
-  }
 }
diff --git a/lib/name.dart b/lib/name.dart
index 4a6c464..152bf7e 100644
--- a/lib/name.dart
+++ b/lib/name.dart
@@ -20,13 +20,5 @@ class Name with ResourceBase {
       language: NamedAPIResource.fromJson(json['language']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-      'language': language.toJson(),
-    };
-  }
 }
 
diff --git a/lib/named_api_resource.dart b/lib/named_api_resource.dart
index 4dc0b35..86238ec 100644
--- a/lib/named_api_resource.dart
+++ b/lib/named_api_resource.dart
@@ -11,23 +11,10 @@ class APIResource<T> with ResourceBase {
   });
 
   factory APIResource.fromJson(Map<String, dynamic> json) {
-    try {
-      return APIResource(
-        rawData: json,
-        url: json['url'],
-      );
-    } catch (e, stack) {
-      print('Error parsing APIResource: $e, json: $json');
-      print(stack);
-      rethrow;
-    }
-  }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'url': url,
-    };
+    return APIResource(
+      rawData: json,
+      url: json['url'],
+    );
   }
 
   T mapper(dynamic data) {
@@ -53,25 +40,11 @@ class NamedAPIResource<T> extends APIResource<T> {
   });
 
   factory NamedAPIResource.fromJson(Map<String, dynamic> json) {
-    try {
-      return NamedAPIResource(
-        rawData: json,
-        name: json['name'],
-        url: json['url'],
-      );
-    } catch (e, stack) {
-      print('Error parsing NamedAPIResource: $e, json: $json');
-      print(stack);
-      rethrow;
-    }
-  }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-      'url': url,
-    };
+    return NamedAPIResource(
+      rawData: json,
+      name: json['name'],
+      url: json['url'],
+    );
   }
 }
 
diff --git a/lib/nature.dart b/lib/nature.dart
index 0f6aec0..2e6a809 100644
--- a/lib/nature.dart
+++ b/lib/nature.dart
@@ -45,19 +45,4 @@ class Nature with ResourceBase {
       names: json['names'].map((e) => Name.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'decreased_stat': decreasedStat.toJson(),
-      'increased_stat': increasedStat.toJson(),
-      'hates_flavor': hatesFlavor.toJson(),
-      'likes_flavor': likesFlavor.toJson(),
-      'pokeathlon_stat_changes': pokeathlonStatChanges.map((e) => e.toJson()).toList(),
-      'move_battle_style_preferences': moveBattleStylePreferences.map((e) => e.toJson()).toList(),
-      'names': names.map((e) => e.toJson()).toList(),
-    };
-  }
 }
diff --git a/lib/nature_stat_affect.dart b/lib/nature_stat_affect.dart
index 300c895..2fbe058 100644
--- a/lib/nature_stat_affect.dart
+++ b/lib/nature_stat_affect.dart
@@ -22,14 +22,6 @@ class NatureStatAffectSets with ResourceBase {
       decrease: json['decrease'].map((e) => NamedAPIResource.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'increase': increase.map((e) => e.toJson()).toList(),
-      'decrease': decrease.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class NatureStatChange with ResourceBase {
@@ -52,14 +44,6 @@ class NatureStatChange with ResourceBase {
       pokeathlonStat: NamedAPIResource.fromJson(json['pokeathlon_stat']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'max_change': maxChange,
-      'pokeathlon_stat': pokeathlonStat.toJson(),
-    };
-  }
 }
 
 class PokeathlonStat with ResourceBase {
@@ -88,16 +72,6 @@ class PokeathlonStat with ResourceBase {
       affectingNatures: NaturePokeathlonStatAffectSets.fromJson(json['affecting_natures']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'names': names,
-      'affecting_natures': affectingNatures.toJson(),
-    };
-  }
 }
 
 class NaturePokeathlonStatAffectSets with ResourceBase {
@@ -120,14 +94,6 @@ class NaturePokeathlonStatAffectSets with ResourceBase {
       decrease: json['decrease'].map((e) => NaturePokeathlonStatAffect.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'increase': increase.map((e) => e.toJson()).toList(),
-      'decrease': decrease.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class NaturePokeathlonStatAffect with ResourceBase {
@@ -150,14 +116,6 @@ class NaturePokeathlonStatAffect with ResourceBase {
       nature: NamedAPIResource.fromJson(json['nature']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'max_change': maxChange,
-      'nature': nature.toJson(),
-    };
-  }
 }
 
 class NatureResource extends NamedAPIResource<Nature> {
diff --git a/lib/pal_park_encounter_area.dart b/lib/pal_park_encounter_area.dart
index 26d7348..42f9a03 100644
--- a/lib/pal_park_encounter_area.dart
+++ b/lib/pal_park_encounter_area.dart
@@ -24,12 +24,5 @@ class PalParkEncounterArea with ResourceBase {
       area: NamedAPIResource.fromJson(json['area']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'base_score': baseScore,
-        'rate': rate,
-        'area': area.toJson(),
-      };
 }
 
diff --git a/lib/past_type.dart b/lib/past_type.dart
index 8ed595e..7ee7bee 100644
--- a/lib/past_type.dart
+++ b/lib/past_type.dart
@@ -21,13 +21,5 @@ class PokemonTypePast with ResourceBase {
       types: json['types'].map<PokemonType>((e) => PokemonType.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'generation': generation.toJson(),
-      'types': types.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
diff --git a/lib/pokedex.dart b/lib/pokedex.dart
index f7df422..cc12183 100644
--- a/lib/pokedex.dart
+++ b/lib/pokedex.dart
@@ -40,16 +40,5 @@ class Pokedex with ResourceBase {
       versionGroups: json['version_groups'].map((e) => NamedAPIResource.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'id': id,
-        'name': name,
-        'descriptions': descriptions.map((e) => e.toJson()).toList(),
-        'names': names.map((e) => e.toJson()).toList(),
-        'region': region.toJson(),
-        'pokemon_entries': pokemonEntries.map((e) => e.toJson()).toList(),
-        'version_groups': versionGroups.map((e) => e.toJson()).toList(),
-      };
 }
 
diff --git a/lib/pokedex_number.dart b/lib/pokedex_number.dart
index 414c2f9..843601d 100644
--- a/lib/pokedex_number.dart
+++ b/lib/pokedex_number.dart
@@ -21,11 +21,5 @@ class PokedexNumber with ResourceBase {
       pokedex: NamedAPIResource.fromJson(json['pokedex']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'entry_number': entryNumber,
-        'pokedex': pokedex.toJson(),
-      };
 }
 
diff --git a/lib/pokemon.dart b/lib/pokemon.dart
index 4375a82..0078596 100644
--- a/lib/pokemon.dart
+++ b/lib/pokemon.dart
@@ -113,30 +113,6 @@ class Pokemon with ResourceBase {
       types: json['types'].map<PokemonType>((e) => PokemonType.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'name': name,
-      'id': id,
-      'height': height,
-      'weight': weight,
-      'is_default': isDefault,
-      'order': order,
-      'abilities': abilities,
-      'base_experience': baseExperience,
-      'forms': forms.map((e) => e.toJson()).toList(),
-      'game_indices': gameIndices.map((e) => e.toJson()).toList(),
-      'held_items': heldItems.map((e) => e.toJson()).toList(),
-      'location_area_encounters': locationAreaEncounters.url,
-      'moves': moves.map((e) => e.toJson()).toList(),
-      'past_types': pastTypes.map((e) => e.toJson()).toList(),
-      'sprites': sprites.toJson(),
-      'species': species.toJson(),
-      'stats': stats.map((e) => e.toJson()).toList(),
-      'types': types.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class PokemonResource extends NamedAPIResource<Pokemon> {
diff --git a/lib/pokemon_entry.dart b/lib/pokemon_entry.dart
index 673ffd7..8b4c82c 100644
--- a/lib/pokemon_entry.dart
+++ b/lib/pokemon_entry.dart
@@ -21,11 +21,5 @@ class PokemonEntry with ResourceBase {
       pokemonSpecies: NamedAPIResource.fromJson(json['pokemon_species']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'entry_number': entryNumber,
-        'pokemon_species': pokemonSpecies.toJson(),
-      };
 }
 
diff --git a/lib/pokemon_species.dart b/lib/pokemon_species.dart
index f3ee1e0..cda4dcc 100644
--- a/lib/pokemon_species.dart
+++ b/lib/pokemon_species.dart
@@ -118,37 +118,6 @@ class PokemonSpecies with ResourceBase {
             ? List<PokemonSpeciesVariety>.from(json['varieties'].map((x) => PokemonSpeciesVariety.fromJson(x)))
             : [],
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'base_happiness': baseHappiness,
-        'capture_rate': captureRate,
-        'color': color?.toJson(),
-        'egg_groups': eggGroups.map((x) => x.toJson()).toList(),
-        'evolution_chain': evolutionChain?.toJson(),
-        'evolves_from_species': evolvesFromSpecies?.toJson(),
-        'flavor_text_entries': flavorTextEntries.map((x) => x.toJson()).toList(),
-        'form_descriptions': formDescriptions.map((x) => x.toJson()).toList(),
-        'form_switchtable': formsSwitchable,
-        'gender_rate': genderRate,
-        'genera': genera.map((x) => x.toJson()).toList(),
-        'generation': generation.toJson(),
-        'growth_rate': growthRate.toJson(),
-        'habitat': habitat?.toJson(),
-        'has_gender_differences': hasGenderDifferences,
-        'hatch_counter': hatchCounter,
-        'id': id,
-        'is_baby': isBaby,
-        'is_legendary': isLegendary,
-        'is_mythical': isMythical,
-        'name': name,
-        'names': names.map((x) => x.toJson()).toList(),
-        'order': order,
-        'pal_park_encounters': palParkEncounters.map((x) => x.toJson()).toList(),
-        'pokedex_numbers': pokedexNumbers.map((x) => x.toJson()).toList(),
-        'shape': shape?.toJson(),
-        'varieties': varieties.map((x) => x.toJson()).toList(),
-      };
 }
 
 class PokemonSpeciesResource extends NamedAPIResource<PokemonSpecies> {
diff --git a/lib/pokemon_species_variety.dart b/lib/pokemon_species_variety.dart
index 47be871..6ccfaf8 100644
--- a/lib/pokemon_species_variety.dart
+++ b/lib/pokemon_species_variety.dart
@@ -21,11 +21,5 @@ class PokemonSpeciesVariety with ResourceBase {
       pokemon: PokemonResource.fromJson(json['pokemon']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'is_default': isDefault,
-        'pokemon': pokemon.toJson(),
-      };
 }
 
diff --git a/lib/region.dart b/lib/region.dart
index d97bc80..2a57e77 100644
--- a/lib/region.dart
+++ b/lib/region.dart
@@ -38,19 +38,6 @@ class Region with ResourceBase {
       versionGroups: json['version_groups'].map<NamedAPIResource>((e) => NamedAPIResource.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'locations': locations.map((e) => e.toJson()).toList(),
-      'names': names.map((e) => e.toJson()).toList(),
-      'main_generation': mainGeneration.toJson(),
-      'pokedexes': pokedexes.map((e) => e.toJson()).toList(),
-      'version_groups': versionGroups.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class RegionResource extends NamedAPIResource<Region> {
diff --git a/lib/sprites.dart b/lib/sprites.dart
index 59f2ee9..620386e 100644
--- a/lib/sprites.dart
+++ b/lib/sprites.dart
@@ -238,12 +238,6 @@ class PokemonSpritesGeneration1 with ResourceBase {
         redBlue: json['red-blue'] != null ? PokemonSprites.fromJson(json['red-blue']) : null,
         yellow: json['yellow'] != null ? PokemonSprites.fromJson(json['yellow']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'red-blue': redBlue?.toJson(),
-        'yellow': yellow?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration2 with ResourceBase {
@@ -267,13 +261,6 @@ class PokemonSpritesGeneration2 with ResourceBase {
         gold: json['gold'] != null ? PokemonSprites.fromJson(json['gold']) : null,
         silver: json['silver'] != null ? PokemonSprites.fromJson(json['silver']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'crystal': crystal?.toJson(),
-        'gold': gold?.toJson(),
-        'silver': silver?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration3 with ResourceBase {
@@ -297,13 +284,6 @@ class PokemonSpritesGeneration3 with ResourceBase {
         fireredLeafgreen: json['firered-leafgreen'] != null ? PokemonSprites.fromJson(json['firered-leafgreen']) : null,
         rubySapphire: json['ruby-sapphire'] != null ? PokemonSprites.fromJson(json['ruby-sapphire']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'emerald': emerald?.toJson(),
-        'firered-leafgreen': fireredLeafgreen?.toJson(),
-        'ruby-sapphire': rubySapphire?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration4 with ResourceBase {
@@ -328,13 +308,6 @@ class PokemonSpritesGeneration4 with ResourceBase {
             json['heartgold-soulsilver'] != null ? PokemonSprites.fromJson(json['heartgold-soulsilver']) : null,
         platinum: json['platinum'] != null ? PokemonSprites.fromJson(json['platinum']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'diamond-pearl': diamondPearl?.toJson(),
-        'heartgold-soulsilver': heartgoldSoulsilver?.toJson(),
-        'platinum': platinum?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration5 with ResourceBase {
@@ -352,11 +325,6 @@ class PokemonSpritesGeneration5 with ResourceBase {
         rawData: json,
         blackWhite: json['black-white'] != null ? PokemonSprites.fromJson(json['black-white']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'black-white': blackWhite?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration6 with ResourceBase {
@@ -378,12 +346,6 @@ class PokemonSpritesGeneration6 with ResourceBase {
             json['omegaruby-alphasapphire'] != null ? PokemonSprites.fromJson(json['omegaruby-alphasapphire']) : null,
         xy: json['x-y'] != null ? PokemonSprites.fromJson(json['x-y']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'omegaruby-alphasapphire': omegarubyAlphasapphire?.toJson(),
-        'x-y': xy?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration7 with ResourceBase {
@@ -405,12 +367,6 @@ class PokemonSpritesGeneration7 with ResourceBase {
         ultraSunUltraMoon:
             json['ultra-sun-ultra-moon'] != null ? PokemonSprites.fromJson(json['ultra-sun-ultra-moon']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'icons': icons?.toJson(),
-        'ultra-sun-ultra-moon': ultraSunUltraMoon?.toJson(),
-      };
 }
 
 class PokemonSpritesGeneration8 with ResourceBase {
@@ -428,189 +384,5 @@ class PokemonSpritesGeneration8 with ResourceBase {
         rawData: json,
         icons: json['icons'] != null ? PokemonSprites.fromJson(json['icons']) : null,
       );
-
-  @override
-  Map<String, dynamic> toJson() => {
-        'icons': icons?.toJson(),
-      };
 }
 
-/*
-"sprites": {
-  "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/back/1.png",
-  "back_female": null,
-  "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/back/shiny/1.png",
-  "back_shiny_female": null,
-  "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/1.png",
-  "front_female": null,
-  "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/shiny/1.png",
-  "front_shiny_female": null,
-  "other": {
-    "dream_world": {
-      "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/other/dream-world/1.svg",
-      "front_female": null
-    },
-    "home": {
-      "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/other/home/1.png",
-      "front_female": null,
-      "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/other/home/shiny/1.png",
-      "front_shiny_female": null
-    },
-    "official-artwork": {
-      "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/other/official-artwork/1.png",
-      "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/other/official-artwork/shiny/1.png"
-    }
-  },
-  "versions": {
-    "generation-i": {
-      "red-blue": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/back/1.png",
-        "back_gray": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/back/gray/1.png",
-        "back_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/transparent/back/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/1.png",
-        "front_gray": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/gray/1.png",
-        "front_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/red-blue/transparent/1.png"
-      },
-      "yellow": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/back/1.png",
-        "back_gray": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/back/gray/1.png",
-        "back_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/transparent/back/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/1.png",
-        "front_gray": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/gray/1.png",
-        "front_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-i/yellow/transparent/1.png"
-      }
-    },
-    "generation-ii": {
-      "crystal": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/back/1.png",
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/back/shiny/1.png",
-        "back_shiny_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/transparent/back/shiny/1.png",
-        "back_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/transparent/back/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/shiny/1.png",
-        "front_shiny_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/transparent/shiny/1.png",
-        "front_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/crystal/transparent/1.png"
-      },
-      "gold": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/gold/back/1.png",
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/gold/back/shiny/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/gold/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/gold/shiny/1.png",
-        "front_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/gold/transparent/1.png"
-      },
-      "silver": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/silver/back/1.png",
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/silver/back/shiny/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/silver/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/silver/shiny/1.png",
-        "front_transparent": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-ii/silver/transparent/1.png"
-      }
-    },
-    "generation-iii": {
-      "emerald": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/emerald/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/emerald/shiny/1.png"
-      },
-      "firered-leafgreen": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/firered-leafgreen/back/1.png",
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/firered-leafgreen/back/shiny/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/firered-leafgreen/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/firered-leafgreen/shiny/1.png"
-      },
-      "ruby-sapphire": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/ruby-sapphire/back/1.png",
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/ruby-sapphire/back/shiny/1.png",
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/ruby-sapphire/1.png",
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iii/ruby-sapphire/shiny/1.png"
-      }
-    },
-    "generation-iv": {
-      "diamond-pearl": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/diamond-pearl/back/1.png",
-        "back_female": null,
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/diamond-pearl/back/shiny/1.png",
-        "back_shiny_female": null,
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/diamond-pearl/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/diamond-pearl/shiny/1.png",
-        "front_shiny_female": null
-      },
-      "heartgold-soulsilver": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/heartgold-soulsilver/back/1.png",
-        "back_female": null,
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/heartgold-soulsilver/back/shiny/1.png",
-        "back_shiny_female": null,
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/heartgold-soulsilver/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/heartgold-soulsilver/shiny/1.png",
-        "front_shiny_female": null
-      },
-      "platinum": {
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/platinum/back/1.png",
-        "back_female": null,
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/platinum/back/shiny/1.png",
-        "back_shiny_female": null,
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/platinum/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-iv/platinum/shiny/1.png",
-        "front_shiny_female": null
-      }
-    },
-    "generation-v": {
-      "black-white": {
-        "animated": {
-          "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/animated/back/1.gif",
-          "back_female": null,
-          "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/animated/back/shiny/1.gif",
-          "back_shiny_female": null,
-          "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/animated/1.gif",
-          "front_female": null,
-          "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/animated/shiny/1.gif",
-          "front_shiny_female": null
-        },
-        "back_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/back/1.png",
-        "back_female": null,
-        "back_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/back/shiny/1.png",
-        "back_shiny_female": null,
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-v/black-white/shiny/1.png",
-        "front_shiny_female": null
-      }
-    },
-    "generation-vi": {
-      "omegaruby-alphasapphire": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vi/omegaruby-alphasapphire/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vi/omegaruby-alphasapphire/shiny/1.png",
-        "front_shiny_female": null
-      },
-      "x-y": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vi/x-y/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vi/x-y/shiny/1.png",
-        "front_shiny_female": null
-      }
-    },
-    "generation-vii": {
-      "icons": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vii/icons/1.png",
-        "front_female": null
-      },
-      "ultra-sun-ultra-moon": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vii/ultra-sun-ultra-moon/1.png",
-        "front_female": null,
-        "front_shiny": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-vii/ultra-sun-ultra-moon/shiny/1.png",
-        "front_shiny_female": null
-      }
-    },
-    "generation-viii": {
-      "icons": {
-        "front_default": "https://raw.githubusercontent.com/PokeAPI/sprites/master/sprites/pokemon/versions/generation-viii/icons/1.png",
-        "front_female": null
-      }
-    }
-  }
-},
-*/
-
diff --git a/lib/stat.dart b/lib/stat.dart
index ba25895..4564ea7 100644
--- a/lib/stat.dart
+++ b/lib/stat.dart
@@ -29,15 +29,6 @@ class PokemonStat with ResourceBase {
       stat: NamedAPIResource.fromJson(json['stat']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'base_stat': baseStat,
-      'effort': effort,
-      'stat': stat.toJson(),
-    };
-  }
 }
 
 class Stat with ResourceBase {
@@ -81,20 +72,5 @@ class Stat with ResourceBase {
       characteristics: json['characteristics'].map((e) => Characteristic.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'game_index': gameIndex,
-      'is_battle_only': isBattleOnly,
-      'move_damage_class': moveDamageClass.toJson(),
-      'names': names.map((e) => e.toJson()).toList(),
-      'affecting_moves': affectingMoves.toJson(),
-      'affecting_natures': affectingNatures.toJson(),
-      'characteristics': characteristics.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
diff --git a/lib/type.dart b/lib/type.dart
index 8b73662..bd973a8 100644
--- a/lib/type.dart
+++ b/lib/type.dart
@@ -20,14 +20,6 @@ class PokemonType with ResourceBase {
       type: TypeResource.fromJson(json['type']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'slot': slot,
-      'type': type.toJson(),
-    };
-  }
 }
 
 class Type with ResourceBase {
@@ -75,22 +67,6 @@ class Type with ResourceBase {
       pokemon: (json['pokemon'] as List<dynamic>).map((e) => TypePokemon.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'damage_relations': damageRelations.toJson(),
-      'past_damage_relations': pastDamageRelations.map((e) => e.toJson()).toList(),
-      'game_indices': gameIndices.map((e) => e.toJson()).toList(),
-      'generation': generation.toJson(),
-      'names': names.map((e) => e.toJson()).toList(),
-      'move_damage_class': moveDamageClass.toJson(),
-      'moves': moves.map((e) => e.toJson()).toList(),
-      'pokemon': pokemon.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class TypeRelations with ResourceBase {
@@ -125,18 +101,6 @@ class TypeRelations with ResourceBase {
       doubleDamageFrom: (json['double_damage_from'] as List<dynamic>).map((e) => NamedAPIResource.fromJson(e)).toList(),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'no_damage_to': noDamageTo.map((e) => e.toJson()).toList(),
-      'half_damage_to': halfDamageTo.map((e) => e.toJson()).toList(),
-      'double_damage_to': doubleDamageTo.map((e) => e.toJson()).toList(),
-      'no_damage_from': noDamageFrom.map((e) => e.toJson()).toList(),
-      'half_damage_from': halfDamageFrom.map((e) => e.toJson()).toList(),
-      'double_damage_from': doubleDamageFrom.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class TypeRelationsPast with ResourceBase {
@@ -159,14 +123,6 @@ class TypeRelationsPast with ResourceBase {
       damageRelations: TypeRelations.fromJson(json['damage_relations']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'generation': generation.toJson(),
-      'damage_relations': damageRelations.toJson(),
-    };
-  }
 }
 
 class TypePokemon with ResourceBase {
@@ -189,14 +145,6 @@ class TypePokemon with ResourceBase {
       pokemon: PokemonResource.fromJson(json['pokemon']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'slot': slot,
-      'pokemon': pokemon.toJson(),
-    };
-  }
 }
 
 class TypeResource extends NamedAPIResource<Type> {
@@ -210,14 +158,6 @@ class TypeResource extends NamedAPIResource<Type> {
     );
   }
 
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'url': url,
-      'name': name,
-    };
-  }
-
   @override
   Type mapper(data) {
     return Type.fromJson(data);
diff --git a/lib/version_game_index.dart b/lib/version_game_index.dart
index a41a6d8..cf7a92f 100644
--- a/lib/version_game_index.dart
+++ b/lib/version_game_index.dart
@@ -20,13 +20,5 @@ class VersionGameIndex with ResourceBase {
       version: NamedAPIResource.fromJson(json['version']),
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'game_index': gameIndex,
-      'version': version.toJson(),
-    };
-  }
 }
 
diff --git a/lib/version_group.dart b/lib/version_group.dart
index b5ebafb..ddebe7b 100644
--- a/lib/version_group.dart
+++ b/lib/version_group.dart
@@ -41,20 +41,6 @@ class VersionGroup with ResourceBase {
       rawData: json,
     );
   }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {
-      'id': id,
-      'name': name,
-      'order': order,
-      'generation': generation.toJson(),
-      'move_learn_methods': moveLearnMethods.map((e) => e.toJson()).toList(),
-      'pokedexes': pokedexes.map((e) => e.toJson()).toList(),
-      'regions': regions.map((e) => e.toJson()).toList(),
-      'versions': versions.map((e) => e.toJson()).toList(),
-    };
-  }
 }
 
 class VersionGroupResource extends NamedAPIResource<VersionGroup> {