public function getData()
 {
     switch ($this->operator) {
         case TES4LogicalExpressionOperator::OPERATOR_AND():
             return $this->leftValue->getData() && $this->rightValue->getData();
         case TES4LogicalExpressionOperator::OPERATOR_OR():
             return $this->leftValue->getData() || $this->rightValue->getData();
     }
     throw new ConversionException("Unknown TES4LogicalExpressionOperator");
 }