function get_item(stack, position) if position < 1 || position > length(stack) error("Position out of bounds") end return stack[position] end function set_item!(stack, position, replacement_card) if position < 1 || position > length(stack) error("Position out of bounds") end stack[position] = replacement_card return stack end function insert_item_at_top!(stack, new_card) push!(stack, new_card) return stack end function remove_item!(stack, position) if position < 1 || position > length(stack) error("Position out of bounds") end deleteat!(stack, position) end function remove_item_from_top!(stack) if isempty(stack) error("Stack is empty") end return deleteat!(stack, length(stack)) end function insert_item_at_bottom!(stack, new_card) pushfirst!(stack, new_card) return stack end function remove_item_at_bottom!(stack) if isempty(stack) error("Stack is empty") end popfirst!(stack) return stack end function check_size_of_stack(stack, stack_size) return length(stack) == stack_size end