CLASS btp net/minecraft/world/chunk/storage/RegionFileCache
	FIELD d cachedRegionFiles Lit/unimi/dsi/fastutil/longs/Long2ObjectLinkedOpenHashMap;
	METHOD a getRegionFile (Lbco;)Lbto;
		ARG 1 pos
	METHOD a writeChunkTag (Lbco;Lhv;)V
		ARG 1 pos
		ARG 2 tag
	METHOD c readChunkTag (Lbco;)Lhv;
		ARG 1 pos
	METHOD g getRegionDir ()Ljava/io/File;
