How do you use SetAsync and GetAsync values inside folders?

module script in ServerScriptService

local module = {}
local DataStoreService = game:GetService("DataStoreService") --get DataStoreService
local InventoryItems = DataStoreService:GetDataStore("InventoryItems") --Change it to whatever you want to call it e.g :GetDataStore("examplename")
AUTOSAVE_INTERVAL = 120 --should be no lower than 60

game.Players.PlayerAdded:Connect(function(Player) --When a player is added to the game, load in their data
	local Key = 'PlayerIdNum-'..Player.UserId.."_InvItemKey" --The key that the players data is saved on
	--Values to Save
	local InvData = Player:WaitForChild("Backpack"):WaitForChild("Inventory")
	local Bananas = InvData:WaitForChild("Bananas")
	local Apples = InvData:WaitForChild("Apples")
	local FirstAid = InvData:WaitForChild("FirstAid")
	local Coconuts = InvData:WaitForChild("Coconuts")
	local MetalScraps = InvData:WaitForChild("MetalScraps")
	local Logs = InvData:WaitForChild("Logs")
	local Sticks = InvData:WaitForChild("Sticks")
	--The table that is used to save it after it is all loaded in
	local StoreToSet = {}
	--Get the data and store it
	local DataToGet = InventoryItems:GetAsync(Key) --Returns the data the key stores (as a table)
	--Changing the table back into values
	if DataToGet ~= nil then --If there is a table
		if #DataToGet >= 1 then --If the table length is 1 or more
			print("Has Data")
			--For each value you have, copy the below code (MUST BE IN ORDER OF SAVED IN!!!!!)
			if DataToGet[1] ~= nil then --if the first bit of data in the table does exist
				Bananas.Value = DataToGet[1] --Set the values of bananas as that value
				table.insert(StoreToSet , DataToGet[1]) --Store it in another table so it can be saved
			end
			if DataToGet[2] ~= nil then
				Apples.Value = DataToGet[2]
				table.insert(StoreToSet , DataToGet[2])
			end
			if DataToGet[3] ~= nil then
				FirstAid.Value = DataToGet[3]
				table.insert(StoreToSet , DataToGet[3])
			end
			if DataToGet[4] ~= nil then
				Coconuts.Value = DataToGet[4]
				table.insert(StoreToSet , DataToGet[4])
			end
			if DataToGet[5] ~= nil then
				MetalScraps.Value = DataToGet[5]
				table.insert(StoreToSet , DataToGet[5])
			end
			if DataToGet[6] ~= nil then
				Logs.Value = DataToGet[6]
				table.insert(StoreToSet , DataToGet[6])
			end
			if DataToGet[7] ~= nil then
				Sticks.Value = DataToGet[7]
				table.insert(StoreToSet , DataToGet[7])
			end
		print(DataToGet[1], DataToGet[2], DataToGet[3], DataToGet[4], DataToGet[5], DataToGet[6], DataToGet[7] .. " Data") --Print the data values
		end
	else
		DataToGet = {} --Create a table, since there was no data or table returned in the GetAsync (this only happens with new players)
		DataToGet[1] = Bananas.Value --The first bit of data in the table is equal to Bananas.Value
		Bananas.Value = 0 --Make sure it is 0
		table.insert(StoreToSet , DataToGet[1]) --Insert it into table, so it can be saved, so next time they join, it loads a table
		DataToGet[2] = Apples.Value
		Apples.Value = 0
		table.insert(StoreToSet , DataToGet[2])
		DataToGet[3] = FirstAid.Value
		FirstAid.Value = 0
		table.insert(StoreToSet , DataToGet[3])
		DataToGet[4] = Coconuts.Value
		Coconuts.Value = 0
		table.insert(StoreToSet , DataToGet[4])
		DataToGet[5] = MetalScraps.Value
		MetalScraps.Value = 0
		table.insert(StoreToSet , DataToGet[5])
		DataToGet[6] = Logs.Value
		Logs.Value = 0
		table.insert(StoreToSet , DataToGet[6])
		DataToGet[7] = Sticks.Value
		Sticks.Value = 0
		table.insert(StoreToSet , DataToGet[7])
		print(DataToGet[1], DataToGet[2], DataToGet[3], DataToGet[4], DataToGet[5], DataToGet[6], DataToGet[7] .. " New Data") --Print new data (all should be 0)
	end
	InventoryItems:SetAsync(Key, StoreToSet) --Set the data to the key as a table, so next time they join there is a table to load in
end)

game.Players.PlayerRemoving:Connect(function(Player) --When the player leaves the game, save their data
	local Key = 'PlayerIdNum-'..Player.UserId.."_InvItemKey" --"This is the key you use to save players data on (must be no longer than 50 characters and must be unique)
	--The key is also what you use to load data as well so it MUST be the exact same variable in the other parts of the script
	--Values to Save
	local InvData = Player:WaitForChild("Backpack"):WaitForChild("Inventory")
	local Bananas = InvData:WaitForChild("Bananas")
	local Apples = InvData:WaitForChild("Apples")
	local FirstAid = InvData:WaitForChild("FirstAid")
	local Coconuts = InvData:WaitForChild("Coconuts")
	local MetalScraps = InvData:WaitForChild("MetalScraps")
	local Logs = InvData:WaitForChild("Logs")
	local Sticks = InvData:WaitForChild("Sticks")
	--Put what you need to save here (THE ORDER YOU USE IN THIS IS THE ORDER YOU MUST USE WHEN THEY JOIN)
	local DataToSave = {
		Bananas.Value,
		Apples.Value,
		FirstAid.Value,
		Coconuts.Value,
		MetalScraps.Value,
		Logs.Value,
		Sticks.Value,
	}
	InventoryItems:SetAsync(Key, DataToSave)
end)

--Autosaving
spawn(function()
	while wait(AUTOSAVE_INTERVAL) do
		for i, Player in pairs (game:GetService("Players"):GetChildren()) do
			print("Auto-saving " .. Player.Name .. "'s Data")
			local Key = 'PlayerIdNum-'..Player.UserId.."_InvItemKey"
			local InvData = Player:WaitForChild("Backpack"):WaitForChild("Inventory")
			local Bananas = InvData:WaitForChild("Bananas")
			local Apples = InvData:WaitForChild("Apples")
			local FirstAid = InvData:WaitForChild("FirstAid")
			local Coconuts = InvData:WaitForChild("Coconuts")
			local MetalScraps = InvData:WaitForChild("MetalScraps")
			local Logs = InvData:WaitForChild("Logs")
			local Sticks = InvData:WaitForChild("Sticks")
			local DataToSave = {
				Bananas.Value,
				Apples.Value,
				FirstAid.Value,
				Coconuts.Value,
				MetalScraps.Value,
				Logs.Value,
				Sticks.Value,
			}
			InventoryItems:SetAsync(Key, DataToSave)
			print("Successfully Auto-saved " .. Player.Name .. "'s Data")
		end
	end
end)

return module

script inside the module script (child of it):

require(script.Parent)