public function get_iac_setting_for_ticket( $ticket ) {
		$ticket_id = $ticket;

		if ( is_object( $ticket ) ) {
			$ticket_id = $ticket->ID;
		}

		if ( empty( $ticket_id ) ) {
			return self::NONE_KEY;
		}

		$ticket_meta_key = $this->get_iac_setting_ticket_meta_key();
		$iac_setting     = get_post_meta( $ticket_id, $ticket_meta_key, true );

		if ( empty( $iac_setting ) ) {
			$iac_setting = self::NONE_KEY;
		}

		/**
		 * Allow filtering the IAC setting for a ticket.
		 *
		 * @since 5.1.0
		 *
		 * @param string                             $iac_setting The IAC setting for a ticket (none, allowed, required).
		 * @param int                                $ticket_id   The ticket ID.
		 * @param \Tribe__Tickets__Ticket_Object|int $ticket      The ticket object or ID as passed to the method.
		 */
		return apply_filters( 'tribe_tickets_plus_attendee_registration_iac_setting_for_ticket', $iac_setting, $ticket_id, $ticket );
	}