Learndash_Coupon_DTO Learndash_Coupon_DTO Coupon DTO class. Used to map the coupon data. ContentsDescription Source Changelog Related Namespace @package Uses Methods Description # Source # File: includes/dto/class-learndash-coupon-dto.php Changelog # Changelog Version Description 4.5.0 Introduced. Related # Namespace # global @package # LearnDash Uses # Uses Uses Description includes/dto/class-learndash-dto.php: Learndash_DTO DTO class. Methods # get_validators — Validates properties on construction based on validators.