method GachaMachine.createItemimport { GachaMachine } from "https://deno.land/x/fortuna@v2.0.1/history/v1.ts"; createItem<ItemType>(result: ItemType,chance?,tier?,): GachaData<ItemType>Create a gacha item to add to the machine. Type ParametersItemTypeParametersresult: ItemType Data of the item. optionalchance = [UNSUPPORTED] Weight of the item. More weight = more common. optionaltier = [UNSUPPORTED] Tier of the item (optional and defaults to 1). ReturnsGachaData<ItemType>item - Item to be passed to the constructor