Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
While you control 2 or more "Gogogo" monsters, you take no effect damage. Once per turn, when an attack is declared involving a "Gogogo" monster you control: You can activate this effect; that monster you control cannot be destroyed by that battle.
--ゴゴゴ護符
--Gogogo Talisman
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--reduce
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CHANGE_DAMAGE)
	e2:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(1,0)
	e2:SetCondition(s.damcon)
	e2:SetValue(s.damval)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EFFECT_NO_EFFECT_DAMAGE)
	c:RegisterEffect(e3)
	--indes
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetType(EFFECT_TYPE_QUICK_O)
	e4:SetRange(LOCATION_SZONE)
	e4:SetCode(EVENT_ATTACK_ANNOUNCE)
	e4:SetHintTiming(TIMING_BATTLE_PHASE)
	e4:SetCountLimit(1)
	e4:SetCondition(s.indcon)
	e4:SetTarget(s.indtg)
	e4:SetOperation(s.indop)
	c:RegisterEffect(e4)
end
s.listed_series={SET_GOGOGO}
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_GOGOGO)
end
function s.damcon(e)
	return Duel.IsExistingMatchingCard(s.cfilter,e:GetHandlerPlayer(),LOCATION_MZONE,0,2,nil)
end
function s.damval(e,re,val,r,rp,rc)
	if (r&REASON_EFFECT)~=0 then return 0 end
	return val
end
function s.indcon(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetAttacker()
	if tc:IsControler(1-tp) then tc=Duel.GetAttackTarget() end
	e:SetLabelObject(tc)
	return tc and tc:IsFaceup() and tc:IsControler(tp) and tc:IsSetCard(SET_GOGOGO)
end
function s.indtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetTargetCard(e:GetLabelObject())
end
function s.indop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
		e1:SetValue(1)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_DAMAGE)
		tc:RegisterEffect(e1)
	end
end