XSS Clean in CI4?

Input are in your controller*. Output are in your view.

*setVar are called in your controller.

Sorry me, but let me ask showing an example:

In CI3 I clean the post with this method:
$post = $this->security->xss_clean($this->input->post(NULL, TRUE));

This means that all post received by the controller will pass by xss_clean. How I can do something like this on CI4?