Modify Piglin Bartering loot table using commands

I've used this example command to modify the DeathLootTable, but I was wondering what command I could use to replace the bartering loot table?


execute as @e[type=minecraft:piglin] run data merge entity @s {DeathLootTable:"minecraft:blocks/diamond_ore"}


So instead of DeathLootTable, what do I have to put there to modify the bartering loot?
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