---@diagnostic disable: missing-return, lowercase-global ---@param container number ---@param returnTable table ---@return table slotTable ---Returns a list of open slots in a container. The optional argument returnTable allows for performance optimization in cases where this function is expected to be called repeatedly. Rather than creating new tables each time the function is called (eventually requiring garbage collection), an existing table can be recycled. (Note, however, that this function does not clear the table's contents; use wipe() first to guarantee consistent results.) function GetContainerFreeSlots(container, returnTable) end