Api\StructType\ApiExpiryDate::setYear PHP Метод

    public function setYear($year = null)
    {
        // validation for constraint: string
        if (!is_null($year) && !is_string($year)) {
            throw new \InvalidArgumentException(sprintf('Invalid value, please provide a string, "%s" given', gettype($year)), __LINE__);
        }
        $this->year = $year;
        return $this;
    }