CLASS net/minecraft/class_18 net/minecraft/world/PersistentState
	FIELD field_17661 LOGGER Lorg/apache/logging/log4j/Logger;
	FIELD field_72 dirty Z
	METHOD method_17919 save (Ljava/io/File;)V
	METHOD method_75 writeNbt (Lnet/minecraft/class_2487;)Lnet/minecraft/class_2487;
		ARG 1 nbt
	METHOD method_78 setDirty (Z)V
		ARG 1 dirty
	METHOD method_79 isDirty ()Z
	METHOD method_80 markDirty ()V