ItemStack do not provide IAttachmentHolder implementation

[flying8lack]

Minecraft Version : 1.21.1

Neoforge version: 21.1.69

Github link to mod: https://github.com/flying8lack/HuntedByBounty/tree/main

@Override
    public InteractionResultHolder<ItemStack> use(Level level, Player player, InteractionHand usedHand) {
        ItemStack item = player.getMainHandItem();
        int amount = item.getData(ModDataAttachment.CHARGES);
        player.sendSystemMessage(Component.literal("Charges: " + amount));
        item.setData(ModDataAttachment.CHARGES, amount + 1);
        return InteractionResultHolder.success(player.getMainHandItem());
    }

As written in the title, It is impossible to get DataAttachment from ItemStack. player already have IAttachmentHolder, which I was able use as shown below:

@Override
    public InteractionResultHolder<ItemStack> use(Level level, Player player, InteractionHand usedHand) {
        int amount = player.getData(ModDataAttachment.CHARGES);
        player.sendSystemMessage(Component.literal("Charges: " + amount));
        player.setData(ModDataAttachment.CHARGES, amount + 1);
        return InteractionResultHolder.success(player.getMainHandItem());
    }

The documentation has suggested that ItemStack should have an IAttachmentHolder implementation, which seems to be wrong. Is there something I am missing or is this a bug? thank you for the help.

[XFactHD]

ItemStack is no longer an attachment holder since the introduction of data components in vanilla in 1.20.5. The data attachment docs also mention this.

If there is indeed still a place on the docs that mentions ItemStack as an attachment holder, then that needs to be corrected. Can you link where you found this?