public abstract class BaseProvider<TYPE> implements ICapabilitySerializable<NBTTagCompound> {

    public abstract TYPE defaultImpl();

    public abstract Capability<TYPE> dataInstance();

    TYPE impl = defaultImpl();
    private final LazyOptional<TYPE> cap = LazyOptional.of(() -> impl);

    @Override
    public NBTTagCompound serializeNBT() {
        return (NBTTagCompound) dataInstance().getStorage()
                .writeNBT(dataInstance(), impl, null);

    }

    @Override
    public void deserializeNBT(NBTTagCompound nbt) {
        dataInstance().getStorage().readNBT(dataInstance(), impl, null, nbt);

    }

    @Nonnull
    @Override
    public <T> LazyOptional<T> getCapability(Capability<T> cap, EnumFacing side) {
        if (cap == dataInstance()) {
            return this.cap.cast();
        }
        return LazyOptional.empty();
    }
}