amCharts如何在piechart上禁用工具提示

// 导入amCharts库
<script src="https://www.amcharts.com/lib/4/core.js"></script>
<script src="https://www.amcharts.com/lib/4/charts.js"></script>

// 创建饼图实例
var chart = am4core.create("chartdiv", am4charts.PieChart);

// 定义图表数据源
chart.data = [{
  "category": "Category 1",
  "value": 50
}, {
  "category": "Category 2",
  "value": 30
}, {
  "category": "Category 3",
  "value": 20
}];

// 定义饼图外观样式
var series = chart.series.push(new am4charts.PieSeries());
series.dataFields.value = "value";
series.dataFields.category = "category";

// 禁用工具提示
series.tooltip.disabled = true;

// 将配置变更应用到图表
chart.invalidateData();