| 123456789101112131415161718192021222324252627282930313233 | import 'package:app_flowy/workspace/domain/page_stack/page_stack.dart';import 'package:flowy_sdk/protobuf/flowy-workspace/view_create.pb.dart';import 'package:flutter/material.dart';class AnnouncementStackView extends HomeStackView {  const AnnouncementStackView() : super(type: ViewType.Blank, title: 'Blank', identifier: "Announcement");  @override  List<Object> get props => [];}class AnnouncementPage extends HomeStackWidget {  const AnnouncementPage({Key? key, required AnnouncementStackView stackView})      : super(key: key, stackView: stackView);  @override  State<StatefulWidget> createState() => _AnnouncementPage();}class _AnnouncementPage extends State<AnnouncementPage> {  @override  Widget build(BuildContext context) {    return SizedBox.expand(      child: Container(        color: Theme.of(context).colorScheme.surface,        child: Padding(          padding: const EdgeInsets.all(10),          child: Container(),        ),      ),    );  }}
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