How to Remove Deleted part from Build Mode DataStore

Hey there,

I have made a build mode game and i have added a delete system.

All i don’t know is how i can identify the part that has been deleted and remove them from the async, here is my server script:

local event = game.ReplicatedStorage.Delete

local ds = game:GetService("DataStoreService"):GetDataStore("Build")

event.OnServerEvent:Connect(function(player, mouse)
	if mouse then
		if mouse.Name == "PlacedBlock" then
			if mouse:GetAttribute("Creator") == player.Name then
				mouse:Destroy()
				local async = ds:GetAsync(player.UserId)
				local cframe = CFrame.new(mouse.CFrame.X, mouse.CFrame.Y, mouse.CFrame.Z)
				for i,v in pairs(async) do
					--remove from ds
				end
			end
		end
	end
end)

This is how the async is loaded in:

test