在dart中生成动态graphql查询的最佳方式是什么？

dependencies:
  graphql_flutter: ^4.0.0

import 'package:graphql_flutter/graphql_flutter.dart';

final HttpLink httpLink = HttpLink('https://your-graphql-api-endpoint');
final ValueNotifier<GraphQLClient> client = ValueNotifier<GraphQLClient>(
  GraphQLClient(
    link: httpLink,
    cache: GraphQLCache(),
  ),
);

final String query = '''
  query GetUser(\$id: ID!) {
    user(id: \$id) {
      id
      name
      email
    }
  }
''';

final Map<String, dynamic> variables = {
  'id': '123',
};

QueryOptions options = QueryOptions(
  document: gql(query),
  variables: variables,
);

final QueryResult result = await client.value.query(options);

if (result.hasException) {
  print(result.exception.toString());
} else {
  final Map<String, dynamic> data = result.data;
  // 处理返回的数据
}