     var seStateBase = html` <p>${({ p }) => p}</p> `({ p: 'default' })[0];
      var seState = seStateBase;

      var seExtra = html`
        <div>
          <p>${({ p }) => p}</p>
          <span></span>
        </div>
      `({
        p: 'default'
      })[0];

      var seAttr = html`
        <div>
          <p data-attr=${({ attr }) => attr} class="${({ className }) => className}">
            ${({ text }) => text}
          </p>
        </div>
      `()[0];

      var seComment = html` <p>ab<!-- ${(