如何在ng2-Charts中将X轴标签换行为多行(X轴标签格式)？

public multiLineXAxisLabel(value: string): string {
  // 在这里处理X轴标签的换行逻辑
  // 返回处理后的标签文本
  return value;
}

public chartOptions: any = {
  scales: {
    xAxes: [{
      ticks: {
        callback: this.multiLineXAxisLabel.bind(this)
      }
    }]
  }
};

public chartData: ChartDataSets[] = [
  { data: [10, 20, 30, 40, 50], label: '数据集1' },
  { data: [5, 15, 25, 35, 45], label: '数据集2' }
];

<canvas baseChart
        [datasets]="chartData"
        [options]="chartOptions"
        [chartType]="'line'"></canvas>