Dietcube\Response::setStatusCode PHP Method

    public function setStatusCode($status_code)
    {
        if (null === self::PHRASES[$this->status_code]) {
            throw new \InvalidArgumentException("Invalid status code '{$this->status_code}'");
        }
        $this->status_code = $status_code;
        $this->setReasonPhrase();
        return $this;
    }