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<?php /** * This helper builds the Category object for a /mail/send API call * * PHP Version - 5.6, 7.0, 7.1, 7.2 * * @package SendGrid\Mail * @author Elmer Thomas <dx@sendgrid.com> * @copyright 2018 SendGrid * @license https://opensource.org/licenses/MIT The MIT License * @version GIT: <git_id> * @link http://packagist.org/packages/sendgrid/sendgrid */ namespace SendGrid\Mail; /** * This class is used to construct a Category object for the /mail/send API call * * @package SendGrid\Mail */ class Category implements \JsonSerializable { /** @var $category string A category name for an email message. Each category name may not exceed 255 characters */ private $category; /** * Optional constructor * * @param string|null $category A category name for an email message. * Each category name may not exceed 255 * characters */ public function __construct($category = null) { if (isset($category)) { $this->setCategory($category); } } /** * Add a category to a Category object * * @param string $category A category name for an email message. * Each category name may not exceed 255 * characters * * @throws TypeException */ public function setCategory($category) { if (!is_string($category)) { throw new TypeException('$category must be of type string.'); } $this->category = $category; } /** * Retrieve a category from a Category object * * @return string */ public function getCategory() { return $this->category; } /** * Return an array representing a Category object for the SendGrid API * * @return string */ public function jsonSerialize() { return $this->getCategory(); } }