Si están usando la sintaxis de Angular 17
<cdk-accordion>
@for (item of items; track item.label) {
<cdk-accordion-item #accordionItem="cdkAccordionItem">
<button class=" w-full text-left" type="button" (click)="accordionItem.toggle()"> {{item.label}} </button>
<div [style.display]="accordionItem.expanded ? '' : 'none' ">
<ul>
@for (subItem of item.items; track subItem.label) {
<li>{{subItem.label}}</li>
}
</ul>
</div>
</cdk-accordion-item>
}
</cdk-accordion>
