Papi_Entry_Type::get_body_classes PHP Method

    public function get_body_classes()
    {
        $arr = $this->body_classes();
        $arr = is_string($arr) ? [$arr] : $arr;
        $arr = is_array($arr) ? $arr : [];
        return array_merge($arr, []);
    }

 /**
  * Get body css classes.
  *
  * @return array
  */
 public function get_body_classes()
 {
     $classes = parent::get_body_classes();
     if (!$this->show_permalink) {
         $classes[] = 'papi-hide-edit-slug-box';
     }
     if (!$this->show_page_attributes) {
         $classes[] = 'papi-hide-pageparentdiv';
     }
     return $classes;
 }