This template outputs an HTML div element with the class attribute set to "yelp-data yelp-data-ui-expander". All yelp-data elements are hidden by the CSS. The div contains information about text directionality, the default expanded state, and optionally additional titles for the expanded and collapsed states.

The expander information is only output if $node has a ui:expanded attribute and $hastitle is true. By default, $hastitle is true if $node has a title element. Set $hastitle explicitly when calling this template on elements that have an automatic default title.