code: public function getObjectType()
      {
          if (is_null($this->_objectType) && isset($this->object)) {
              $this->_objectType = $this->object->objectType->systemId;
          }
  
          return $this->_objectType;
      }
docs: Get object type.
  
  @return [[@doctodo return_type:getObjectType]] [[@doctodo return_description:getObjectType]]