GuiStateElement.State.getItem(HumanEntity)
GuiStorageElement.getStorageItem(HumanEntity, int)
GuiStorageElement.setStorageItem(HumanEntity, int, ItemStack)
InventoryGui.getPageAmount(HumanEntity)
InventoryGui.getPageNumber(HumanEntity)
InventoryGui.replaceVars(HumanEntity, String, String...)
InventoryGui.setItemText(HumanEntity, ItemStack, String...)
GuiStateElement.State.getItem(HumanEntity)