Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When an opponent's monster declares an attack: Negate the attack, then you can Special Summon 1 "T.G." monster, or 1 Level 4 or lower Tuner, from your hand or Deck.
--バトル・スタン・ソニック
--Sonic Stun
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_TG}
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp)
end
function s.filter(c,e,tp)
	return ((c:IsType(TYPE_TUNER) and c:IsLevelBelow(4)) or c:IsSetCard(SET_TG)) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetPossibleOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.NegateAttack() then
		if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
		local g1=Duel.GetMatchingGroup(s.filter,tp,LOCATION_HAND|LOCATION_DECK,0,nil,e,tp)
		if #g1>0 and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
			Duel.BreakEffect()
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
			local g2=g1:Select(tp,1,1,nil)
			Duel.SpecialSummon(g2,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end