ot id="x-select1-slot" name="s1"></slot></x-select2></template>
  <script type="module">
import '../../polymer-legacy.js';
import { Polymer } from '../../lib/legacy/polymer-fn.js';
Polymer({is: 'x-select1'});
</script>
</dom-module>

<dom-module id="x-echo">
  <template><slot></slot></template>
  <script type="module">
import '../../polymer-legacy.js';
import { Polymer } from '../../lib/legacy/polymer-fn.js';
Polymer({is: 'x-echo'});
</script>
</dom-module>

<dom-module id="x-simple">
  <template><div>simpl