@Override
    public CommandResult execute(CommandSource src, CommandContext args) throws CommandException {
        if(src instanceof Player) {
            Player player = (Player) src;

            Optional<ItemStack> opIS = player.getItemInHand(HandTypes.MAIN_HAND);
            ItemStack handItem = opIS.orElse(null);
            if(handItem == null) {
                player.sendMessage(Text.of("Take some item in your main hand. :)"));
                return CommandResult.empty();
            }

            AEnergyData energy = handItem.getOrCreate(AEnergyData.class).get();

            String arg = (String) args.getOne("ID").orElseGet(String::new);

            if(energy.id().exists()) {
                player.sendMessage(Text.of("Old id: " + energy.id().get()));
            }

            if(!arg.isEmpty()) {
                energy.setID(arg);
                player.sendMessage(Text.of("New id: " + energy.id().get()));
            }
            return CommandResult.success();
        }
        return CommandResult.empty();
    }