CLASS net/minecraft/class_3978 net/minecraft/world/IdCountsState
	FIELD field_17662 idCounts Lit/unimi/dsi/fastutil/objects/Object2IntMap;
	METHOD method_17920 getNextMapId ()I
	METHOD method_32360 fromNbt (Lnet/minecraft/class_2487;)Lnet/minecraft/class_3978;
		ARG 0 nbt