error = $error; $this->errorMessage = $errorMessage; } /** * @return void|never */ final public function assertIsSuccess(): void { if ($this->isError()) { throw new ValidationException($this->getErrorMessage()); } } public function isError(): bool { return $this->error; } public function isSuccess(): bool { return !$this->isError(); } public function getErrorMessage(): ?string { return $this->errorMessage; } }