Case C-711/19: Judgment of the Court (Ninth Chamber) of 8 October 2020 (request for a preliminary ruling from the Verwaltungsgerichtshof — Austria) — Admiral Sportwetten GmbH, Novomatic AG, AKO Gastronomiebetriebs GmbH v Magistrat der Stadt Wien (Reference for a preliminary ruling — Directive (EU) 2015/1535 — Article 1 — Procedure for the provision of information in the field of technical regulations and of rules on Information Society services — Definition of ‘technical regulation’ — Games of chance — Local duty on the operation of betting terminals — Tax rule — European Commission not notified — Enforceability against the taxpayer)