src/Valkyrja/Http/NativeResponse.php
public function isSuccessful(): bool
    {
        return $this->statusCode >= StatusCode::OK
            && $this->statusCode < StatusCode::MULTIPLE_CHOICES;
    }
public function isSuccessful(): bool
    {
        return $this->statusCode >= StatusCode::OK
            && $this->statusCode < StatusCode::MULTIPLE_CHOICES;
    }
Is response successful?

@return bool