
    <nz-tree-select
      style="width: 250px"
      nzPlaceHolder="Please select"
      [(ngModel)]="value"
      [nzMaxTagCount]="3"
      [nzMaxTagPlaceholder]="omittedPlaceHolder"
      [nzNodes]="nodes"
      nzDefaultExpandAll
      nzMultiple
      (ngModelChange)="onChange($event)"
    ></nz-tree-select>
    <ng-template #omittedPlaceHolder let-omittedValues>and {{ omittedValues.length }} more...</ng-template>
  