UpgradeRecipe
Link to upgraderecipe
Импорт класса
Link to импорт-класса
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 Copyimport crafttweaker.api.recipe.type.UpgradeRecipe;
Implemented Interfaces
Link to implemented-interfaces
UpgradeRecipe implements the following interfaces. That means all methods defined in these interfaces are also available in UpgradeRecipe