| 123456789101112131415161718 | import 'dart:collection';import 'package:appflowy_backend/protobuf/flowy-database/grid_entities.pb.dart';import 'package:appflowy_backend/protobuf/flowy-error/errors.pb.dart';import '../grid/presentation/widgets/filter/filter_info.dart';import 'field/field_controller.dart';import 'row/row_cache.dart';typedef OnFieldsChanged = void Function(UnmodifiableListView<FieldInfo>);typedef OnFiltersChanged = void Function(List<FilterInfo>);typedef OnDatabaseChanged = void Function(DatabasePB);typedef OnRowsChanged = void Function(  List<RowInfo>,  RowsChangedReason,);typedef OnError = void Function(FlowyError);
 |