Case C-144/20: Judgment of the Court (Fifth Chamber) of 9 September 2021 (request for a preliminary ruling from the Administratīvā rajona tiesa — Latvia) — AS ‘LatRailNet’, ‘Latvijas dzelzceļš’ VAS v Valsts dzelzceļa administrācija (Reference for a preliminary ruling — Rail transport — Directive 2012/34/EU — Articles 32 and 56 — Railway infrastructure charging — Independence of the infrastructure manager — Functions of the regulatory body — Concept of ‘optimal competitiveness of rail market segments’ — Exclusive right to a rail segment — Public service operator)