Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon using this card you control.
--スチーム・シンクロン
--Steam Synchron
local s,id=GetID()
function s.initial_effect(c)
	--synchro effect
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMINGS_CHECK_MONSTER|TIMING_MAIN_END)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.sccon)
	e1:SetTarget(s.sctarg)
	e1:SetOperation(s.scop)
	c:RegisterEffect(e1)
end
function s.sccon(e,tp,eg,ep,ev,re,r,rp)
	return not e:GetHandler():IsStatus(STATUS_CHAINING) and Duel.GetTurnPlayer()~=tp
		and (Duel.IsMainPhase())
end
function s.sctarg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsSynchroSummonable,tp,LOCATION_EXTRA,0,1,nil,e:GetHandler()) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function s.scop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsControler(1-tp) or not c:IsRelateToEffect(e) or c:IsFacedown() then return end
	local g=Duel.GetMatchingGroup(Card.IsSynchroSummonable,tp,LOCATION_EXTRA,0,nil,c)
	if #g>0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local sg=g:Select(tp,1,1,nil)
		Duel.SynchroSummon(tp,sg:GetFirst(),c)
	end
end