CLASS fq net/minecraft/util/registry/MutableRegistry
METHOD a set (ILqp;Ljava/lang/Object;)Ljava/lang/Object;
ARG 1 rawId
ARG 2 id
ARG 3 entry
METHOD a add (Lqp;Ljava/lang/Object;)Ljava/lang/Object;
ARG 1 id
ARG 2 entry
METHOD c isEmpty ()Z