Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Draw 1 card for each different "Neo-Spacian" name on the monsters you control.
--スペーシア・ギフト
--Space Gift
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_NEO_SPACIAN}
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsSetCard,SET_NEO_SPACIAN),tp,LOCATION_MZONE,0,nil)
		local ct=s.count_unique_code(g)
		e:SetLabel(ct)
		return ct>0 and Duel.IsPlayerCanDraw(tp,ct)
	end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(e:GetLabel())
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,e:GetLabel())
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
	local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsSetCard,SET_NEO_SPACIAN),tp,LOCATION_MZONE,0,nil)
	local ct=s.count_unique_code(g)
	Duel.Draw(p,ct,REASON_EFFECT)
end
function s.count_unique_code(g)
	local check={}
	local count=0
	local tc=g:GetFirst()
	for tc in aux.Next(g) do
		for i,code in ipairs({tc:GetCode()}) do
			if not check[code] then
				check[code]=true
				count=count+1
			end
		end
	end
	return count
end