ng-template for the ng-cdk-popover recipe in Angular Cookbook 2nd Edition

ng-cdk-popover-template.html

<ng-template cdkConnectedOverlay [cdkConnectedOverlayOrigin]="popoverMenuOrigin!"
  [cdkConnectedOverlayOpen]="menuShown" [cdkConnectedOverlayHasBackdrop]="true"
  (backdropClick)="closeMenu()"
  [cdkConnectedOverlayPositions]="menuPositions"
  cdkConnectedOverlayPanelClass="menu-popover" 
  >
  <div class="menu-popover__list">
    <div class="menu-popover__list__item">
      Duplicate
    </div>
    <div class="menu-popover__list__item">
      Edit
    </div>
    <div class="menu-popover__list__item">
      Delete
    </div>
  </div>
</ng-template>