[help] Vehicle Marker spawn (Random Vehicles)

I’m currently trying to make a marker spawn a selective amount of cars

	Citizen.Wait(0)
	local myPed = GetPlayerPed(-1)
	local player = PlayerId()
	local vehicle = GetHashKey('casco')```

you walk up to a marker, and press 'E' above is the coding I use to spawn a vehicle, I tried adding "local vehicle = GetHashKey('casco')` mutiple times with different vehicle hashes, and it only spawns the casco, any help on spawning a random vehicle by putting multiple hashes?