如何在StreamBuilder中使用StreamZip？

import 'dart:async';
import 'package:flutter/widgets.dart';

Stream<int> stream1 = Stream<int>.fromIterable([1, 2, 3]);
Stream<int> stream2 = Stream<int>.fromIterable([4, 5, 6]);

StreamBuilder<List<int>>(
  stream: StreamZip<int>([stream1, stream2]),
  builder: (BuildContext context, AsyncSnapshot<List<int>> snapshot) {
    if (snapshot.hasData) {
      // 处理合并后的流数据
      List<int> mergedData = snapshot.data!;
      return Text('合并后的数据：$mergedData');
    } else if (snapshot.hasError) {
      // 处理错误
      return Text('发生错误：${snapshot.error}');
    } else {
      // 数据尚未到达
      return CircularProgressIndicator();
    }
  },
);