Riverpod context.read()只返回提供程序中的数据类型，所以我不能更新值

import 'package:flutter_riverpod/flutter_riverpod.dart';

final countProvider = Provider<int>((ref) => 0);

class MyWidget extends ConsumerWidget {
  @override
  Widget build(BuildContext context, ScopedReader watch) {
    final count = watch(countProvider);

    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text('Count: $count'),
            ElevatedButton(
              onPressed: () {
                // 更新值
                context.read(countProvider).state++;
              },
              child: Text('Increment'),
            ),
          ],
        ),
      ),
    );
  }
}