{{#each this.checkboxes as |checkbox index|}}
  {{#if (has-block)}}
    {{yield checkbox.option checkbox.isSelected index}}
  {{else}}
    <li>
      <label>
        <Input @type="checkbox" @checked={{checkbox.isSelected}} disabled={{this.disabled}}/>
        {{checkbox.label}}
      </label>
    </li>
  {{/if}}
{{/each}}