CLASS btb net/minecraft/world/chunk/ChunkProvider
	METHOD a onLightUpdate (Lbdk;III)V
		ARG 1 type
		ARG 2 chunkX
		ARG 3 sectionY
		ARG 4 chunkZ
	METHOD b getChunk (II)Lbcm;
		ARG 1 chunkX
		ARG 2 chunkZ
	METHOD j getWorld ()Lbcm;