{# @description A collapsible group of entries inside a menu, used inside menu. Nests inside itself for further levels. Attributes other than the ones below land on the list item. #}
{# @prop text:text | description:"Label of the group, shown in the summary." #}
{# @prop open:boolean | description:"Render the group expanded." #}
{# @prop icon:text | description:"Icon shown before the label, passed as the name of the icon component." #}
{# @prop class:text | description:"Extra classes added to the list item." #}
{# @slot — The group's entries, as menu.item and menu.submenu components. #}