package codechicken.nei.api; import java.util.Optional; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraftforge.fluids.FluidStack; public interface IStackStringifyHandler { default NBTTagCompound convertItemStackToNBT(ItemStack stack, boolean saveStackSize) { return null; } default ItemStack convertNBTToItemStack(NBTTagCompound nbtTag) { return null; } default FluidStack getFluid(ItemStack stack) { return null; } default Optional getContainerItem(ItemStack stack) { return null; } }