code: public function getIcon()
      {
          if (is_null($this->_icon) && isset($this->object)) {
              $this->_icon = ['class' => $this->object->objectType->icon, 'title' => $this->objectTypeDescriptor];
          }
  
          return $this->_icon;
      }
docs: Get icon.
  
  @return [[@doctodo return_type:getIcon]] [[@doctodo return_description:getIcon]]