indow.customElements.define('test-fixture', TestFixture);
    } else {
      document.registerElement('test-fixture', {
        prototype: TestFixturePrototype
      });
    }
  } catch (e) {
    if (window.WCT) {
      console.warn('if you are using WCT, you do not need to manually import test-fixture.html');
    } else {
      console.warn('test-fixture has already been registered!');
    }
  }
})();
</script>
