<pre>
  bs-accordion:
    libraries:
      - accordion:
          css:
            component:
              ../styles/accordion.css: {}
          js:
            ../behaviors/accordion.js: {}
</pre>
<pre>
  <code>
    { { attach_library('ui_patterns/libraries.bs_accordion') } }
    { { attach_library('ui_patterns/bs-accordion.accordion') } }
  </code>
</pre>
