CLASS cfo net/minecraft/world/chunk/light/BlockLightStorage
	CLASS cfo$a Data
		METHOD <init> (Lit/unimi/dsi/fastutil/longs/Long2ObjectOpenHashMap;)V
			ARG 1 map
		METHOD a copy ()Lcfo$a;
	METHOD <init> (Lbsu;)V
		ARG 1 chunkProvider