Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is sent to the Graveyard for the Synchro Summon of a Spellcaster-Type Synchro Monster, you can return 1 Spell Card from your Graveyard to the top of your Deck.
--マジキャット
--Magicat
local s,id=GetID()
function s.initial_effect(c)
	--todeck
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_BE_MATERIAL)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e1:SetCondition(s.tdcon)
	e1:SetTarget(s.tdtg)
	e1:SetOperation(s.tdop)
	c:RegisterEffect(e1)
end
function s.tdcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsLocation(LOCATION_GRAVE) and r==REASON_SYNCHRO
		and e:GetHandler():GetReasonCard():IsRace(RACE_SPELLCASTER)
end
function s.filter(c)
	return c:IsSpell() and c:IsAbleToDeck()
end
function s.tdtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,1,0,0)
end
function s.tdop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoDeck(tc,nil,SEQ_DECKTOP,REASON_EFFECT)
	end
end