open-consul/ui/packages/consul-ui/app/components/popover-menu/index.hbs

  {{yield}}
  <div class="popover-menu" ...attributes>
    <AriaMenu @keyboardAccess={{keyboardAccess}} as |change keypress keypressClick aria|>

{{#let (hash
  MenuItem=(component
    'popover-menu/menu-item'
    menu=(hash
      addSubmenu=(action "addSubmenu")
      removeSubmenu=(action "removeSubmenu")
      confirm=(concat "popover-menu-" guid "-")
      clickTrigger=this.toggle.click
      keypressClick=keypressClick
    )
  )
  MenuSeparator=(component
    'popover-menu/menu-separator'
  )
)
as |components|}}
  {{#let (hash
    toggle=this.toggle.click
  )
  as |api|}}

      <ToggleButton
        @checked={{if keyboardAccess aria.expanded expanded}}
        @onchange={{queue change (action "change")}}
      as |toggle|>
        <Ref @target={{this}} @name="toggle" @value={{toggle}} />
        <button type="button" aria-haspopup="menu" onkeydown={{keypress}} onclick={{this.toggle.click}} id={{aria.labelledBy}} aria-controls={{aria.controls}}>
          <YieldSlot @name="trigger">
            {{yield components api}}
          </YieldSlot>
        </button>
      </ToggleButton>

      <MenuPanel @position={{position}} id={{aria.controls}} aria-labelledby={{aria.labelledBy}} aria-expanded={{aria.expanded}} as |menu|>
        <Ref @target={{this}} @name="menu" @value={{menu}} />
        <BlockSlot @name="controls">
          <input type="checkbox" id={{concat 'popover-menu-' guid '-'}} />
        {{#each submenus as |sub|}}
          <input type="checkbox" id={{concat 'popover-menu-' guid '-' sub}} onchange={{menu.change}} />
        {{/each}}
        </BlockSlot>
        {{#if hasHeader}}
          <BlockSlot @name="header">
            {{yield components api}}
            {{#yield-slot name="header"}}{{else}}{{/yield-slot}}
          </BlockSlot>
        {{/if}}
        <BlockSlot @name="menu">
          <YieldSlot @name="menu" @params={{block-params (concat "popover-menu-" guid "-") send keypressClick this.toggle.click}}>
            {{yield components api}}
          </YieldSlot>
        </BlockSlot>
      </MenuPanel>

  {{/let}}
{{/let}}

    </AriaMenu>
  </div>