code: public function init_widgets() {
          if (!is_array($this->widgets)) {
              $this->widgets = array();
          }
  
          if (count($this->widgets) > 0) {
              return;
          }
  
          foreach ($this->widgets as $widget) {
              if (class_exists($widget)) {
                  register_widget($widget);
              }
          }
      }
docs: Initializes widgets (if are any defined).
  
  @since 0.1.2
  @return void