public void read(
        BlockState state,
        CompoundNBT nbt) {
        super.read(
            state,
            nbt);

        capability.readNBT(inv, null, nbt);
    }

    @Nonnull
    @Override
    public CompoundNBT write(
        CompoundNBT compound) {
        super.write(compound);
        capability.writeNBT(inv, null);
        return compound;
    }