Filter Hook: WooCommerce ticket email content.
Method: Hooks the actions and filters used by the class.
Method: Display dismissible notice about new Attendee Registration (AR) Modal settings if has used AR prior to Modal’s release and hasn’t previously dismissed this notice.
Class: Class Notices
Method: Get ticket meta for Attendee Registration.
Method: Get cart data for Attendee Registration.
Method: Update ticket meta from Attendee Registration.
Method: Handle filtering `tribe_tickets_attendee_registration_has_required_meta` to determine whether any of the cart tickets has required meta.
Method: Filter the tickets settings tab to include tickets plus settings
Method: Set the Event Tickets version in the options table if it’s not already set.