TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.
You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.
Render the inner parts of a Widget. This ViewHelper can only be used in a template which belongs to a Widget Controller.
It renders everything inside the Widget ViewHelper, and you can pass additional arguments.