Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Return 1 face-up Synchro Monster you control to the Extra Deck to select and Special Summon a Tuner monster(s) from your Graveyard, whose total Levels equal the Level of that Synchro Monster. You cannot Synchro Summon the turn you activate this card.
--バラエティ・アウト
--Variety Comes Out
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	Duel.AddCustomActivityCounter(id,ACTIVITY_SPSUMMON,s.counterfilter)
end
function s.counterfilter(c)
	return not c:IsSynchroSummoned()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	e:SetLabel(1)
	if chk==0 then return Duel.GetCustomActivityCount(id,tp,ACTIVITY_SPSUMMON)==0 end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_OATH)
	e1:SetTargetRange(1,0)
	e1:SetTarget(s.splimit)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
	aux.RegisterClientHint(e:GetHandler(),nil,tp,1,0,aux.Stringid(id,1),nil)
end
function s.splimit(e,c,tp,sumtp,sumpos)
	return sumtp&SUMMON_TYPE_SYNCHRO==SUMMON_TYPE_SYNCHRO
end
function s.cfilter(c,e,tp,g,maxc)
	local tmax=maxc
	if c:GetSequence()<5 then tmax=tmax-1 end
	if tmax<=0 then return end
	return c:IsFaceup() and c:IsType(TYPE_SYNCHRO) and c:IsAbleToExtraAsCost()
		and g:CheckWithSumEqual(Card.GetLevel,c:GetLevel(),1,maxc)
end
function s.spfilter(c,e,tp)
	return c:IsType(TYPE_TUNER) and c:IsCanBeEffectTarget(e) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return false end
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	local maxc=ft+1
	if maxc>1 and Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then maxc=1 end
	if chk==0 then
		if e:GetLabel()==0 then return false end
		e:SetLabel(0)
		local spg=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_GRAVE,0,nil,e,tp)
		return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil,e,tp,spg,maxc)
	end
	e:SetLabel(0)
	local spg=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_GRAVE,0,nil,e,tp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local cg=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_MZONE,0,1,1,nil,e,tp,spg,maxc)
	local lv=cg:GetFirst():GetLevel()
	Duel.SendtoDeck(cg,nil,SEQ_DECKTOP,REASON_COST)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sg=spg:SelectWithSumEqual(tp,Card.GetLevel,lv,1,maxc)
	Duel.SetTargetCard(sg)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,sg,#sg,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetTargetCards(e)
	local ct=#g
	if ct==0 or (ct>1 and Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT))
		or ct>Duel.GetLocationCount(tp,LOCATION_MZONE) then return end
	Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
end