无法在ngx-datatable中添加独立的行单元格(从后台接收的数据)

data = [
  { name: 'John', age: 25, extraCell: '' },
  { name: 'Jane', age: 30, extraCell: '' },
  // ...
];

<ngx-datatable [rows]="data">
  <ngx-datatable-column name="Name">
    <ng-template ngx-datatable-cell-template let-rowIndex="rowIndex" let-value="value">
      {{ value }}
    </ng-template>
  </ngx-datatable-column>
  <ngx-datatable-column name="Age">
    <ng-template ngx-datatable-cell-template let-rowIndex="rowIndex" let-value="value">
      {{ value }}
    </ng-template>
  </ngx-datatable-column>
  <!-- 添加额外的列 -->
  <ngx-datatable-column name="Extra Cell">
    <ng-template ngx-datatable-cell-template let-rowIndex="rowIndex" let-value="value">
      {{ value.extraCell }}
    </ng-template>
  </ngx-datatable-column>
</ngx-datatable>