CLASS btm net/minecraft/world/gen/carver/Carver
FIELD a CAVE Lbtm;
FIELD b NETHER_CAVE Lbtm;
FIELD c RAVINE Lbtm;
FIELD d UNDERWATER_RAVINE Lbtm;
FIELD e UNDERWATER_CAVE Lbtm;
FIELD f AIR Lbpm;
FIELD g CAVE_AIR Lbpm;
FIELD h WATER Lcfd;
FIELD i LAVA Lcfd;
METHOD a register (Ljava/lang/String;Lbtm;)Lbtm;
