如何在chartjs-node中使用插件？

npm install chart.js chartjs-node

const Chart = require('chart.js');
const ChartjsNode = require('chartjs-node');

const chartNode = new ChartjsNode(600, 400); // 设置图表的宽度和高度

const plugins = [
  // 插件列表，可以根据需求添加更多插件
  require('chartjs-plugin-datalabels'), // 数据标签插件示例
  require('chartjs-plugin-annotation') // 注释插件示例
];

const configuration = {
  type: 'bar', // 图表类型
  data: {
    labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'], // 数据标签
    datasets: [{
      label: '# of Votes',
      data: [12, 19, 3, 5, 2, 3],
      backgroundColor: [
        'rgba(255, 99, 132, 0.2)',
        'rgba(54, 162, 235, 0.2)',
        'rgba(255, 206, 86, 0.2)',
        'rgba(75, 192, 192, 0.2)',
        'rgba(153, 102, 255, 0.2)',
        'rgba(255, 159, 64, 0.2)'
      ],
      borderColor: [
        'rgba(255, 99, 132, 1)',
        'rgba(54, 162, 235, 1)',
        'rgba(255, 206, 86, 1)',
        'rgba(75, 192, 192, 1)',
        'rgba(153, 102, 255, 1)',
        'rgba(255, 159, 64, 1)'
      ],
      borderWidth: 1
    }]
  },
  options: {
    plugins: {
      datalabels: { // 数据标签插件配置
        anchor: 'end',
        align: 'top',
        formatter: Math.round
      },
      annotation: { // 注释插件配置
        annotations: [{
          type: 'line',
          mode: 'vertical',
          scaleID: 'x-axis-0',
          value: 'March',
          borderColor: 'red',
          borderWidth: 2,
          label: {
            enabled: true,
            content: 'Annotation Label'
          }
        }]
      }
    }
  }
};

(async () => {
  const chart = await chartNode.drawChart(configuration, { plugins }); // 绘制图表

  // 将图表保存为图片
  await chartNode.writeImageToFile('image/png', './chart.png');

  // 或者将图表保存为Buffer
  const imageBuffer = await chartNode.getImageBuffer('image/png');
})();