Official battle royale project how to add the Randomized Map Script?

I am roblox studio newbie, I found the Official battle royale project .

https://education.roblox.com/en-us/resources/battle-royale/project-setup

in the Get the Game Ready page found Randomized Map Script , but I don't know how to add the picknewmap () and GetSpawnLocations() to playermanager module. can anyone help ? thanks.

https://education.roblox.com/en-us/resources/battle-royale/get-the-game-ready

Below is official random script and player manager script, can help to add random map ?

Randomized Map Script >>
--[[
Setup Notes:
1. In Workspace, create a folder named Maps. Store all parts of a map in individual folders.
2. For each individual map, include a folder named SpawnLocations
3. When starting a match, use pickNewMap() to get a random map. When assigning player spawn points, use
	GetSpawnLocations() to get a table with all locations.
]]
 
local MapManager = {}
 
local mapsFolder = workspace.Maps
-- Stores all maps that can be rotated between
local availableMaps = mapsFolder:GetChildren()
 
-- Stores the current map in play
local activeMap
 
-- Used to get random maps.
local randomGenerator = Random.new()
 
-- Gets a random map from the available maps table
function MapManager.pickNewMap()
	local whichMapKey = randomGenerator:NextInteger(1,#availableMaps)
	activeMap = availableMaps[whichMapKey]
	print("New map: " .. activeMap.Name)
end
 
-- returns a table with the maps current spawn points
function MapManager.getSpawnLocations()
	local spawnPoints = activeMap:FindFirstChild("SpawnLocations")
	local availableSpawnPoints = spawnPoints:GetChildren()
	return availableSpawnPoints
end
 
return MapManager

Below is official player manager script

local PlayerManager = {}
 
-- Services
local Players = game:GetService("Players")
local ServerStorage = game:GetService("ServerStorage")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
 
-- Modules
local moduleScripts = ServerStorage:WaitForChild("ModuleScripts")
local gameSettings = require(moduleScripts:WaitForChild("GameSettings"))
 
-- Events
local events = ServerStorage:WaitForChild("Events")
local matchEnd = events:WaitForChild("MatchEnd")
 
-- Map Variables
local lobbySpawn = workspace.Lobby.StartSpawn
local arenaMap = workspace.Arena
local spawnLocations = arenaMap.SpawnLocations
 
-- Values
local displayValues = ReplicatedStorage:WaitForChild("DisplayValues")
local playersLeft = displayValues:WaitForChild("PlayersLeft")
 
-- Player Variables
local activePlayers = {}
local playerWeapon = ServerStorage.Weapon
 
local function checkPlayerCount()
	if #activePlayers == 1 then
		matchEnd:Fire(gameSettings.endStates.FoundWinner)
		print("Found winner")
	end
end
 
local function removeActivePlayer(player)
	print("removing player")
	for playerKey, whichPlayer in pairs(activePlayers) do
		if whichPlayer == player then
			table.remove(activePlayers, playerKey)
			playersLeft.Value = #activePlayers
			checkPlayerCount()
		end
	end
end
 
local function respawnPlayerInLobby(player)
	player.RespawnLocation = lobbySpawn
	player:LoadCharacter()
end
 
local function preparePlayer(player, whichSpawn)
	player.RespawnLocation = whichSpawn
	player:LoadCharacter()
	
	local character = player.Character or player.CharacterAdded:Wait()
	-- Give the player a tool
	local sword = playerWeapon:Clone()
	sword.Parent = character
 
	local humanoid = character:WaitForChild("Humanoid")
	
	humanoid.Died:Connect(function()
		respawnPlayerInLobby(player)
		removeActivePlayer(player)
	end)
end
 
local function onPlayerJoin(player)
	player.RespawnLocation = lobbySpawn
end
 
local function removePlayerWeapon(whichPlayer)
	-- Check to see if a player exist in case they disconnected or left. 
	if whichPlayer then
		local character = whichPlayer.Character
 
		-- If the player has it currently on their character
		if character:FindFirstChild("Weapon") then
			character.Weapon:Destroy()
		end
		-- If the player has the weapon in their backpack
		if whichPlayer.Backpack:FindFirstChild("Weapon") then
			whichPlayer.Backpack.Weapon:Destroy()
		end
	else
		print("No player to remove weapon")
	end
end
 
 
function PlayerManager.sendPlayersToMatch()
	local availableSpawnPoints = spawnLocations:GetChildren()
	
	for playerKey, whichPlayer in pairs(Players:GetPlayers()) do
		table.insert(activePlayers,whichPlayer)
 
		-- Gets a spawn location and then removes it from the table so the next player gets the next spawn
		local spawnLocation = availableSpawnPoints[1]
		table.remove(availableSpawnPoints, 1)
		preparePlayer(whichPlayer, spawnLocation)
	end
 
	playersLeft.Value = #activePlayers
end
 
function PlayerManager.getWinnerName()
	if activePlayers[1] then
		local winningPlayer = activePlayers[1]
		return winningPlayer.Name
	else
		return "Error: No player found"
	end
end
 
function PlayerManager.removeAllWeapons()
	for playerKey, whichPlayer in pairs(activePlayers) do
		removePlayerWeapon(whichPlayer)
	end
end
 
function PlayerManager.resetPlayers()
	for playerKey, whichPlayer in pairs(activePlayers) do
		respawnPlayerInLobby(whichPlayer)
	end
 
	activePlayers = {}
end
 
-- Events
Players.PlayerAdded:Connect(onPlayerJoin)
 
return PlayerManager