<!-- #docplaster -->
<nav>
  <button (click)="toggle()">Toggle Boolean/Close</button>
</nav>

<!-- #docregion trigger-boolean -->
<div [@openClose]="isOpen ? true : false" class="open-close-container">
<!-- #enddocregion trigger-boolean -->
  <p>The box is now {{ isOpen ? 'Open' : 'Closed' }}!</p>
<!-- #docregion trigger-boolean -->
</div>
<!-- #enddocregion trigger-boolean -->
