@Override
	public FieldVisitor visitField(int access, String name, String descriptor, String signature, Object value) {
		// Skip private fields
		if (!keptItems.contains(Item.PRIVATE_FIELDS) && Modifier.isPrivate(access))
			return null;
		FieldVisitor fv = super.visitField(access, name, descriptor, signature, value);
		return new FieldHollower(fv);
	}
@param cv
		Parent visitor.
@param keptItems
		Types of content to keep when hollowing out the class. Method bodies are always hollowed.
recaf-core/src/main/java/software/coley/recaf/util/visitors/ClassHollowingVisitor.java