CLASS btc net/minecraft/world/chunk/ReadOnlyChunk
	FIELD a wrapped Lbtd;
	METHOD <init> (Lbtd;)V
		ARG 1 wrapped
	METHOD d transformHeightmapType (Lbuj$a;)Lbuj$a;
		ARG 1 type
	METHOD u getWrappedChunk ()Lbtd;
