Flutter / graphql_codegenでコード生成

import 'package:gql/ast.dart';
import 'package:json_annotation/json_annotation.dart';
part 'person.graphql.g.dart';

@JsonSerializable(explicitToJson: true)
class VariablesQueryFetchPerson {
  VariablesQueryFetchPerson({required this.id});

  @override
  factory VariablesQueryFetchPerson.fromJson(Map<String, dynamic> json) =>
      _$VariablesQueryFetchPersonFromJson(json);

  final String id;

  Map<String, dynamic> toJson() => _$VariablesQueryFetchPersonToJson(this);
  int get hashCode {
    final l$id = id;
    return Object.hashAll([l$id]);
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
    if (!(other is VariablesQueryFetchPerson) ||
        runtimeType != other.runtimeType) return false;
    final l$id = id;
    final lOther$id = other.id;
    if (l$id != lOther$id) return false;
    return true;
  }
}

@JsonSerializable(explicitToJson: true)
class QueryFetchPerson {
  QueryFetchPerson({this.fetch_person, required this.$__typename});

  @override
  factory QueryFetchPerson.fromJson(Map<String, dynamic> json) =>
      _$QueryFetchPersonFromJson(json);

  final QueryFetchPerson$fetchPerson? fetch_person;

  @JsonKey(name: '__typename')
  final String $__typename;

  Map<String, dynamic> toJson() => _$QueryFetchPersonToJson(this);
  int get hashCode {
    final l$fetch_person = fetch_person;
    final l$$__typename = $__typename;
    return Object.hashAll([l$fetch_person, l$$__typename]);
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
    if (!(other is QueryFetchPerson) || runtimeType != other.runtimeType)
      return false;
    final l$fetch_person = fetch_person;
    final lOther$fetch_person = other.fetch_person;
    if (l$fetch_person != lOther$fetch_person) return false;
    final l$$__typename = $__typename;
    final lOther$$__typename = other.$__typename;
    if (l$$__typename != lOther$$__typename) return false;
    return true;
  }
}

extension UtilityExtensionQueryFetchPerson on QueryFetchPerson {
  QueryFetchPerson copyWith(
          {QueryFetchPerson$fetchPerson? Function()? fetch_person,
          String? $__typename}) =>
      QueryFetchPerson(
          fetch_person:
              fetch_person == null ? this.fetch_person : fetch_person(),
          $__typename: $__typename == null ? this.$__typename : $__typename);
}

const QUERY_FETCH_PERSON = const DocumentNode(definitions: [
  OperationDefinitionNode(
      type: OperationType.query,
      name: NameNode(value: 'FetchPerson'),
      variableDefinitions: [
        VariableDefinitionNode(
            variable: VariableNode(name: NameNode(value: 'id')),
            type: NamedTypeNode(name: NameNode(value: 'ID'), isNonNull: true),
            defaultValue: DefaultValueNode(value: null),
            directives: [])
      ],
      directives: [],
      selectionSet: SelectionSetNode(selections: [
        FieldNode(
            name: NameNode(value: 'fetch_person'),
            alias: null,
            arguments: [
              ArgumentNode(
                  name: NameNode(value: 'id'),
                  value: VariableNode(name: NameNode(value: 'id')))
            ],
            directives: [],
            selectionSet: SelectionSetNode(selections: [
              FieldNode(
                  name: NameNode(value: 'full_name'),
                  alias: NameNode(value: 'name'),
                  arguments: [],
                  directives: [],
                  selectionSet: null),
              FieldNode(
                  name: NameNode(value: '__typename'),
                  alias: null,
                  arguments: [],
                  directives: [],
                  selectionSet: null)
            ])),
        FieldNode(
            name: NameNode(value: '__typename'),
            alias: null,
            arguments: [],
            directives: [],
            selectionSet: null)
      ])),
]);

@JsonSerializable(explicitToJson: true)
class QueryFetchPerson$fetchPerson {
  QueryFetchPerson$fetchPerson({required this.name, required this.$__typename});

  @override
  factory QueryFetchPerson$fetchPerson.fromJson(Map<String, dynamic> json) =>
      _$QueryFetchPerson$fetchPersonFromJson(json);

  final String name;

  @JsonKey(name: '__typename')
  final String $__typename;

  Map<String, dynamic> toJson() => _$QueryFetchPerson$fetchPersonToJson(this);
  int get hashCode {
    final l$name = name;
    final l$$__typename = $__typename;
    return Object.hashAll([l$name, l$$__typename]);
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
    if (!(other is QueryFetchPerson$fetchPerson) ||
        runtimeType != other.runtimeType) return false;
    final l$name = name;
    final lOther$name = other.name;
    if (l$name != lOther$name) return false;
    final l$$__typename = $__typename;
    final lOther$$__typename = other.$__typename;
    if (l$$__typename != lOther$$__typename) return false;
    return true;
  }
}

extension UtilityExtensionQueryFetchPerson$fetchPerson
    on QueryFetchPerson$fetchPerson {
  QueryFetchPerson$fetchPerson copyWith({String? name, String? $__typename}) =>
      QueryFetchPerson$fetchPerson(
          name: name == null ? this.name : name,
          $__typename: $__typename == null ? this.$__typename : $__typename);
}