ItemEvents.modification(event => {
  event.modify('lootboxesplus:common_loot_bag', item => {
  item.maxStackSize = 64})
  });
ItemEvents.modification(event => {
  event.modify('lootboxesplus:uncommon_loot_bag', item => {
    item.maxStackSize = 64})
  });
ItemEvents.modification(event => {
  event.modify('lootboxesplus:rare_loot_bag', item => {
    item.maxStackSize = 64})
  });
ItemEvents.modification(event => {
  event.modify('lootboxesplus:epic_loot_bag', item => {
    item.maxStackSize = 64})
  });
ItemEvents.modification(event => {
  event.modify('lootboxesplus:boss_loot_bag', item => {
    item.maxStackSize = 64})
  });