CLASS cff net/minecraft/fluid/Fluids
FIELD b FLOWING_WATER Lcfb;
FIELD c WATER Lcfb;
FIELD d FLOWING_LAVA Lcfb;
FIELD e LAVA Lcfb;
METHOD a register (Ljava/lang/String;Lcfc;)Lcfc;
ARG 0 id
ARG 1 value