It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import at the very top of the file.

ZenScript
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import crafttweaker.api.villager.trade.type.ItemsAndEmeraldsToItems;

ItemsAndEmeraldsToItems implements the following interfaces. That means all methods defined in these interfaces are also available in ItemsAndEmeraldsToItems

• ItemListing

ZenScript
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new ItemsAndEmeraldsToItems(fromItem as ItemLike, fromCount as int, toItem as ItemDefinition, toCount as int, maxUses as int, villagerXp as int) as ItemsAndEmeraldsToItems
new ItemsAndEmeraldsToItems(<item:minecraft:dirt>, 4, <item:minecraft:diamond>, 1, 8, 2);

Parametro	Tipo	Descrizione
Parametro fromItem	Tipo ItemLike	Descrizione The secondary item that is being given to the villager
Parametro fromCount	Tipo int	Descrizione The amount of the secondary item that is being given to the villager
Parametro toItem	Tipo ItemDefinition	Descrizione The Item that is being sold by the villager
Parametro toCount	Tipo int	Descrizione The amount of the item that is being sold by the villager
Parametro maxUses	Tipo int	Descrizione How many times can this trade be used
Parametro villagerXp	Tipo int	Descrizione How much experience does this trade reward the villager

ZenScript
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new ItemsAndEmeraldsToItems(fromItem as ItemLike, fromCount as int, emeraldCost as int, toItem as ItemDefinition, toCount as int, maxUses as int, villagerXp as int) as ItemsAndEmeraldsToItems
new ItemsAndEmeraldsToItems(<item:minecraft:dirt>, 4, 2, <item:minecraft:diamond>, 1, 8, 2);

Parametro	Tipo	Descrizione
Parametro fromItem	Tipo ItemLike	Descrizione The secondary item that is being given to the villager
Parametro fromCount	Tipo int	Descrizione The amount of the secondary item that is being given to the villager
Parametro emeraldCost	Tipo int	Descrizione How many emeralds will be given to the villager
Parametro toItem	Tipo ItemDefinition	Descrizione The Item that is being sold by the villager
Parametro toCount	Tipo int	Descrizione The amount of the item that is being sold by the villager
Parametro maxUses	Tipo int	Descrizione How many times can this trade be used
Parametro villagerXp	Tipo int	Descrizione How much experience does this trade reward the villager