accessWidener v1 named
accessible method net/minecraft/server/WorldLoader loadAndReplaceLayer (Lnet/minecraft/server/packs/resources/ResourceManager;Lnet/minecraft/core/LayeredRegistryAccess;Lnet/minecraft/server/RegistryLayer;Ljava/util/List;)Lnet/minecraft/core/LayeredRegistryAccess;
# for auto-marking experimental stuff
accessible field net/minecraft/core/RegistrySetBuilder entries Ljava/util/List;
accessible class net/minecraft/core/RegistrySetBuilder$RegistryStub
accessible field net/minecraft/data/registries/UpdateOneTwentyOneRegistries BUILDER Lnet/minecraft/core/RegistrySetBuilder;