How to avoid " returned from twing

Question

I am using twig as below

res.render("screen/index.twig", {
    name: 'word',
    columns: columns,
});

It is working as excepted.

Now I want to switch to twing and used below code

const contents = await twing
.render("screen/index.twig", {
  name: 'word',
  columns: columns,
})
res.end(contents);

here contents give below

...
  <script>
    window.COLUMNS = [{&quot;alignment&quot;:&quot;left&quot;}];
  </script>
...

But I need the below output without using any .replace function. How can I achieve this? Can anyone tell why it working in twig and not in twing? Thanks.

...
  <script>
    window.COLUMNS = [{"alignment":"left"}];
  </script>
...