CLASS net/minecraft/class_2989 net/minecraft/server/ServerAdvancementLoader
FIELD field_13404 manager Lnet/minecraft/class_163;
FIELD field_13405 GSON Lcom/google/gson/Gson;
FIELD field_13406 LOGGER Lorg/apache/logging/log4j/Logger;
METHOD method_12893 getAdvancements ()Ljava/util/Collection;
METHOD method_12896 get (Lnet/minecraft/class_2960;)Lnet/minecraft/class_161;