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);

Parameter	Type	Beschreibung
Parameter fromItem	Type ItemLike	Beschreibung The secondary item that is being given to the villager
Parameter fromCount	Type int	Beschreibung The amount of the secondary item that is being given to the villager
Parameter toItem	Type ItemDefinition	Beschreibung The Item that is being sold by the villager
Parameter toCount	Type int	Beschreibung The amount of the item that is being sold by the villager
Parameter maxUses	Type int	Beschreibung How many times can this trade be used
Parameter villagerXp	Type int	Beschreibung 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);

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