ItemDefinition

// Item.addAttributeModifier(attribute as Attribute, modifier as AttributeModifier, slot as EquipmentSlotGroup);
myItem.addAttributeModifier(myAttribute, myAttributeModifier, myEquipmentSlotGroup);

// Item.addEnchantment(enchantment as Enchantment, level as int);
myItem.addEnchantment(myEnchantment, myInt);

// Item.asItem() as ItemDefinition;
myItem.asItem();

// Item as ItemDefinition
myItem as Item

// Item.attributeModifiers = (modifiers as ItemAttributeModifiers);
myItem.attributeModifiers = myItemAttributeModifiers;

// Item.bannerPatterns = (patterns as BannerPatternLayers);
myItem.bannerPatterns = myBannerPatternLayers;

// Item.baseColor = (baseColor as DyeColor);
myItem.baseColor = myDyeColor;

// Item.bees = (occupants as List<BeehiveBlockEntityOccupant>);
myItem.bees = myList;

// Item.blockEntityData = (data as CustomData);
myItem.blockEntityData = myCustomData;

// Item.blockState = (blockState as BlockItemStateProperties);
myItem.blockState = myBlockItemStateProperties;

// Item.bucketEntityData = (data as CustomData);
myItem.bucketEntityData = myCustomData;

// Item.bundleContents = (bundleContents as BundleContents);
myItem.bundleContents = myBundleContents;

// Item.canBreak = (predicate as AdventureModePredicate);
myItem.canBreak = myAdventureModePredicate;

// Item.canPlaceOn = (predicate as AdventureModePredicate);
myItem.canPlaceOn = myAdventureModePredicate;

// Item.chargedProjectiles = (chargedProjectiles as ChargedProjectiles);
myItem.chargedProjectiles = myChargedProjectiles;

// Item.commandString as string
myItem.commandString

// Item.commandString() as string;
myItem.commandString();

// Item.commonItemComponents() as DataComponentMap;
ItemDefinition.commonItemComponents();

// Item.container = (container as ItemContainerContents);
myItem.container = myItemContainerContents;

// Item.containerLoot = (containerLoot as SeededContainerLoot);
myItem.containerLoot = mySeededContainerLoot;

// Item.creativeSlotLock = (creativeSlotLock as bool);
myItem.creativeSlotLock = myBool;

// Item.customData = (customData as CustomData);
myItem.customData = myCustomData;

// Item.customModelData = (modelData as CustomModelData);
myItem.customModelData = myCustomModelData;

// Item.customName = (component as Component);
myItem.customName = myComponent;

// Item.debugStickState = (debugStickState as DebugStickState);
myItem.debugStickState = myDebugStickState;

// Item.defaultInstance as IItemStack
myItem.defaultInstance

// Item.defaultInstance() as IItemStack;
myItem.defaultInstance();

// Item as IItemStack
myItem as IItemStack

// Item.dyedColor = (color as DyedItemColor);
myItem.dyedColor = myDyedItemColor;

// Item.enchantmentGlintOverride = (value as bool);
myItem.enchantmentGlintOverride = myBool;

// Item.enchantments = (enchantments as ItemEnchantments);
myItem.enchantments = myItemEnchantments;

// Item.entityData = (data as CustomData);
myItem.entityData = myCustomData;

// Item.fireResistant = (intangibleProjectile as bool);
myItem.fireResistant = myBool;

// Item.fireworkExplosion = (explosion as FireworkExplosion);
myItem.fireworkExplosion = myFireworkExplosion;

// Item.fireworks = (fireworks as Fireworks);
myItem.fireworks = myFireworks;

// Item.food = (food as FoodProperties);
myItem.food = myFoodProperties;

// Item.hideAdditionalTooltip = (hideAdditionalTooltip as bool);
myItem.hideAdditionalTooltip = myBool;

// Item.hideTooltip = (hideTooltip as bool);
myItem.hideTooltip = myBool;

// Item.instrument = (instrument as Instrument);
myItem.instrument = myInstrument;

// Item.intangibleProjectile = (intangibleProjectile as bool);
myItem.intangibleProjectile = myBool;

// Item.itemName = (component as Component);
myItem.itemName = myComponent;

// Item.lockCode = (code as LockCode);
myItem.lockCode = myLockCode;

// Item.lodestoneTracker = (tracker as LodestoneTracker);
myItem.lodestoneTracker = myLodestoneTracker;

// Item.lore = (lore as ItemLore);
myItem.lore = myItemLore;

// Item.mapColor = (mapColor as MapItemColor);
myItem.mapColor = myMapItemColor;

// Item.mapDecorations = (mapDecorations as MapDecorations);
myItem.mapDecorations = myMapDecorations;

// Item.mapId = (id as MapId);
myItem.mapId = myMapId;

// Item.mapPostProcessing = (mapPostProcessing as MapPostProcessing);
myItem.mapPostProcessing = myMapPostProcessing;

// Item.maxDamage = (maxDamage as int);
myItem.maxDamage = myInt;

// Item.maxStackSize = (maxStackSize as int);
myItem.maxStackSize = myInt;

// Item.noteBlockSound = (sound as ResourceLocation);
myItem.noteBlockSound = myResourceLocation;

// Item.ominousBottleAmplifier = (amplifier as int);
myItem.ominousBottleAmplifier = myInt;

// Item.potDecorations = (decorations as PotDecorations);
myItem.potDecorations = myPotDecorations;

// Item.potionContents = (potionContents as PotionContents);
myItem.potionContents = myPotionContents;

// Item.profile = (profile as ResolvableProfile);
myItem.profile = myResolvableProfile;

// Item.rarity = (rarity as Rarity);
myItem.rarity = myRarity;

// Item.recipes = (recipes as List<ResourceLocation>);
myItem.recipes = myList;

// Item.registryName as ResourceLocation
myItem.registryName

// Item.registryName() as ResourceLocation;
myItem.registryName();

// Item.remove(type as DataComponentType<T>);
myItem.remove(myDataComponentType);

// Item.repairCost = (cost as int);
myItem.repairCost = myInt;

// Item.setComponent<T>(type as DataComponentType<T>, value as T);
myItem.setComponent<T>(myDataComponentType, myT);

// Item.setJsonComponent(type as DataComponentType<T>, value as IData);
myItem.setJsonComponent(myDataComponentType, myIData);

// Item.storedEnchantments = (storedEnchantments as ItemEnchantments);
myItem.storedEnchantments = myItemEnchantments;

// Item.suspiciousStewEffects = (suspiciousStewEffects as SuspiciousStewEffects);
myItem.suspiciousStewEffects = mySuspiciousStewEffects;

// Item.tool = (tool as Tool);
myItem.tool = myTool;

// Item.trim = (trim as ArmorTrim);
myItem.trim = myArmorTrim;

// Item.unbreakable = (unbreakable as Unbreakable);
myItem.unbreakable = myUnbreakable;

// Item.writableBookContent = (writableBookContent as WritableBookContent);
myItem.writableBookContent = myWritableBookContent;

// Item.writtenBookContent = (writtenBookContent as WrittenBookContent);
myItem.writtenBookContent = myWrittenBookContent;