如何在amCharts v4中创建股票事件？

// 创建StockChart实例
var chart = am4core.create("chartdiv", am4charts.StockChart);

// 设置主题
chart.theme = am4themes_animated;

// 设置数据源
chart.dataSource.url = "data.json";

// 设置时间轴
var dateAxis = chart.xAxes.push(new am4charts.DateAxis());
dateAxis.renderer.grid.template.location = 0;

// 创建股票事件系列
var series = chart.series.push(new am4charts.StockEventSeries());
series.dataFields.dateX = "date";
series.dataFields.valueY = "value";

// 设置股票事件的图标
var bullet = series.bullets.push(new am4charts.CircleBullet());
bullet.circle.radius = 5;
bullet.circle.strokeWidth = 2;
bullet.circle.fill = am4core.color("#fff");

// 设置股票事件的提示框
series.tooltipText = "{dateX}: [bold]{valueY}[/]";
series.tooltip.pointerOrientation = "vertical";

// 添加股票事件数据
series.data = [{
  "date": new Date(2022, 0, 1),
  "value": 100
}, {
  "date": new Date(2022, 0, 15),
  "value": 200
}, {
  "date": new Date(2022, 1, 1),
  "value": 150
}];

// 更新图表
chart.invalidateData();