public function render_page()
 {
     ob_start();
     WC_Admin_Attributes::output();
     $html = ob_get_clean();
     // Replacement to fix item edition links.
     if ($this->original_page_slug != $this->extended_page_slug) {
         $html = str_replace('page=' . $this->original_page_slug, 'page=' . $this->extended_page_slug, $html);
     }
     print $this->add_own_field($html);
     $this->load_assets();
 }
 /**
  * Init the attributes page.
  */
 public function attributes_page()
 {
     WC_Admin_Attributes::output();
 }