Case C-637/20: Judgment of the Court (First Chamber) of 28 April 2022 (request for a preliminary ruling from the Högsta förvaltningsdomstolen — Sweden) — Skatteverket v DSAB Destination Stockholm AB (Reference for a preliminary ruling — Directive 2006/112/EC — Common system of value added tax — Article 30a(1) — Concept of ‘voucher’ — Article 30a(3) — Concept of ‘“multi-purpose” voucher’ — Sale of a card entitling the cardholder to a number of tourist services for a limited period)