如何以编程方式知道treeview的节点是否有子节点(angular的kendoui treeview )？

<kendo-treeview [nodes]="treeData"></kendo-treeview>

public treeData: any[] = [
  {
    text: 'Node 1',
    items: [
      { text: 'Child Node 1' },
      { text: 'Child Node 2' }
    ]
  },
  {
    text: 'Node 2',
    items: [
      { text: 'Child Node 3' },
      { text: 'Child Node 4' }
    ]
  }
];

import { Component, ViewChild } from '@angular/core';
import { TreeViewComponent } from '@progress/kendo-angular-treeview';

@Component({
  selector: 'app-my-component',
  template: `
    <kendo-treeview #treeview [nodes]="treeData"></kendo-treeview>
    <button (click)="checkChildren()">Check Children</button>
  `
})
export class MyComponent {
  @ViewChild('treeview', { static: false }) treeview: TreeViewComponent;

  public checkChildren(): void {
    const selectedNode = this.treeview.selectedNode;
    const hasChildren = selectedNode.hasChildren;
    console.log('Has Children:', hasChildren);
  }
}