public function cart_has_meta( $cart_tickets ) {
		// Bail if we don't receive an array
		if ( ! is_array( $cart_tickets ) ) {
			return false;
		}

 		// Bail if we receive an empty array
 		if ( empty( $cart_tickets ) ) {
			return false;
		}

		foreach ( $cart_tickets as $ticket_id => $quantity ) {
			if ( $this->ticket_has_meta( $ticket_id ) ) {
				return true;
			}
		}

		return false;
	}