{{#each content as |item index|}}
  {{#collapsable-table-row
    rowHeight=rowHeight
    content=item
    index=index
    class=itemClassNames
    register=(action register)
    unregister=(action unregister)
    table=table
    click=(action 'toggleRowCollapse' item index target=table)}}

    {{yield item index}}
  {{/collapsable-table-row}}
{{else}}
  {{yield to="inverse"}}
{{/each}}