function Self.Dequip(itemid, slot, container)
    itemid = Item.GetItemIDFromDualInput(itemid)
    if (not table.contains(EQUIPMENT_SLOTS, slot)) then
        error(slot .. "' is not a valid slot.")
        return false
    end

    container = container or Container.GetFirst()
    if (type(container) == 'number') then
        container = Container.New(container)
    end

    if (container:isOpen()) then
        if (container:ItemCount() == container:Capacity()) then
            return false
        end
        slotMoveItemToContainer(slot, container._index, container:Capacity() - 1)
    else
        return false
    end
end