
    <nz-tree [nzData]="nodes" nzShowIcon></nz-tree>
    <nz-tree [nzData]="nodes" nzShowIcon [nzExpandedIcon]="multiExpandedIconTpl">
      <ng-template #multiExpandedIconTpl let-node let-origin="origin">
        @if (!origin.isLeaf) {
          <nz-icon [nzType]="node.isExpanded ? 'folder-open' : 'folder'" class="ant-tree-switcher-line-icon" />
        } @else {
          <nz-icon nzType="file" class="ant-tree-switcher-line-icon" />
        }
      </ng-template>
    </nz-tree>
  