How to use my module script with DataStore?

Here is my script, I have created a module script to save and load data with DataStores. My only question is how do I access sessionData from other scripts? sessionData holds all the data for each player but I can't figure out a way to access that table from other scripts.

local Players = game:GetService("Players")
local DataStoreService = game:GetService("DataStoreService")
local playerData = DataStoreService:GetDataStore("playerData")


sessionData = {}

DataStore.SomeFunction = function(parameters)
	    return sessionData
end

Players.PlayerAdded:Connect(function(player)
	setupPlayerData(player)
end)
 
Players.PlayerRemoving:Connect(function(player)
	savePlayerData(player.userId)
end)

local function autoSave()
	while wait(60) do
		for playerUserId, data in pairs(sessionData) do
			savePlayerData(playerUserId)
		end
	end
end
 
spawn(autoSave)


function setupPlayerData(player)
	local playerUserId = player.userId
	local success, data = pcall(function()
		return playerData:GetAsync(playerUserId)
	end)
	if success then
		if data then
			sessionData[playerUserId] = data
		else
			sessionData[playerUserId] = {Bank=5000, Cash=0, Inventory={}, Vehicles={}, Gangs={}, Messages={}}
		end
	else
		error("Cannot access data store for player!")
	end
end

function savePlayerData(playerUserId)
	if sessionData[playerUserId] then
		local success, err = pcall(function()
			playerData:SetAsync(playerUserId, sessionData[playerUserId])
		end)
		if not success then
			error("Cannot save data for player!")
		end
	end
end