blink\http\Response::status PHP Method

    public function status($code, $text = null)
    {
        if (!isset(self::$httpStatuses[$code])) {
            throw new InvalidParamException("The HTTP status code is invalid: {$code}");
        }
        $this->statusCode = $code;
        if ($text === null) {
            $this->statusText = isset(static::$httpStatuses[$this->statusCode]) ? static::$httpStatuses[$this->statusCode] : '';
        } else {
            $this->statusText = $text;
        }
    }