How to Use Macros (Storage NBT)

I want to function this execute as @n[type=mannequin,tag=corpse] if entity @s run function ulti:corpse/corpse/give_items with storage ulti:corpse_items
so what do i put inside of ulti:corpse/corpse/give_items to get the id inside storage of ulti:corpse_items it has stored the inventory of a player?