如何在发出的Highcharts选择事件回调函数中获取angular组件类引用？

import { Component, OnInit } from '@angular/core';
import * as Highcharts from 'highcharts';

@Component({
  selector: 'app-chart',
  templateUrl: './chart.component.html',
  styleUrls: ['./chart.component.css']
})
export class ChartComponent implements OnInit {
  chart: Highcharts.Chart;

  constructor() { }

  ngOnInit() {
    this.chart = Highcharts.chart('container', {
      // Highcharts配置选项
      // ...
      plotOptions: {
        series: {
          events: {
            click: (event) => {
              // 在选择事件回调函数中获取组件类引用
              const componentRef = this;
              // 可以通过componentRef来访问组件类的属性或方法
              // ...
            }
          }
        }
      },
      // ...
    });
  }
}