CLASS xj net/minecraft/tag/BlockTags
	CLASS xj$a
		METHOD a values ()Ljava/util/Collection;
		METHOD a contains (Ljava/lang/Object;)Z
	FIELD U container Lxp;
	METHOD a getContainer ()Lxp;
	METHOD a register (Ljava/lang/String;)Lxo;
	METHOD a setContainer (Lxp;)V