Case C-404/21: Judgment of the Court (Fifth Chamber) of 22 December 2022 (request for a preliminary ruling from the Tribunale ordinario di Asti — Italy) — WP v Istituto nazionale della previdenza sociale, Repubblica italiana (Reference for a preliminary ruling — European Central Bank (ECB) staff members — Transfer of pension rights acquired in a national pension scheme to the ECB pension scheme — Article 4(3) TEU — Principle of sincere cooperation — ECB Conditions of Employment — Article 8 of Annex IIIa — No provision of national law or agreement between the Member State concerned and the ECB)