code: public function clear()
      {
          $this->metaTags = [];
          $this->linkTags = [];
          $this->css = [];
          $this->cssFiles = [];
          $this->js = [];
          $this->jsFiles = [];
          $this->assetBundles = [];
      }
docs: Clears up the registered meta tags, link tags, css/js scripts and files.