def test_transparentRendering(self):
        """
        A C{transparent} element should be eliminated from the DOM and rendered as
        only its children.
        """
        element = Element(loader=XMLString(
            '<t:transparent '
            'xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">'
            'Hello, world.'
            '</t:transparent>'
        ))
        return self.assertFlattensTo(element, b"Hello, world.")

        A C{transparent} element should be eliminated from the DOM and rendered as
        only its children.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/test/test_template.py